def test_consumer(self):
(ms1_peak_picking_args, msn_peak_picking_args, ms1_deconvolution_args,
msn_deconvolution_args) = self.build_args()
outdir = self.make_output_directory()
outpath = os.path.join(outdir, "test-output.mzML")
consumer = SampleConsumer(
agp_glycomics_mzml,
ms1_peak_picking_args=ms1_peak_picking_args,
ms1_deconvolution_args=ms1_deconvolution_args,
msn_peak_picking_args=msn_peak_picking_args,
msn_deconvolution_args=msn_deconvolution_args,
storage_path=outpath,
sample_name=None,
n_processes=5,
extract_only_tandem_envelopes=False)
consumer.start()
reader = ProcessedMzMLDeserializer(outpath)
scan = reader.get_scan_by_id("scanId=1601016")
self.assertIsNotNone(
scan.deconvoluted_peak_set.has_peak(958.66, use_mz=1))
reader.close()
self.cleanup(outdir)
def test_consumer(self):
(ms1_peak_picking_args, msn_peak_picking_args,
ms1_deconvolution_args, msn_deconvolution_args) = self.build_args()
outdir = self.make_output_directory()
outpath = os.path.join(outdir, "test-output.mzML")
consumer = SampleConsumer(
agp_glycomics_mzml,
ms1_peak_picking_args=ms1_peak_picking_args,
ms1_deconvolution_args=ms1_deconvolution_args,
msn_peak_picking_args=msn_peak_picking_args,
msn_deconvolution_args=msn_deconvolution_args,
storage_path=outpath, sample_name=None,
n_processes=5,
extract_only_tandem_envelopes=False)
consumer.start()
reader = ProcessedMzMLDeserializer(outpath)
scan = reader.get_scan_by_id("scanId=1601016")
self.assertIsNotNone(scan.deconvoluted_peak_set.has_peak(958.66, use_mz=1))
reader.close()
self.cleanup(outdir)
def _make_scan_loader(self):
if self.mzml_path is not None:
if not os.path.exists(self.mzml_path):
raise IOError("No such file {}".format(self.mzml_path))
self.scan_loader = ProcessedMzMLDeserializer(self.mzml_path)
else:
self.mzml_path = self.analysis.parameters['sample_path']
if not os.path.exists(self.mzml_path):
raise IOError((
"No such file {}. If {} was relocated, you may need to explicily pass the"
" corrected file path.").format(
self.mzml_path,
self.database_connection._original_connection))
self.scan_loader = ProcessedMzMLDeserializer(self.mzml_path)
def _make_scan_loader(self):
if self.mzml_path is not None:
if not os.path.exists(self.mzml_path):
raise IOError("No such file {}".format(self.mzml_path))
self.scan_loader = ProcessedMzMLDeserializer(self.mzml_path)
else:
self.mzml_path = self.analysis.parameters['sample_path']
if not os.path.exists(self.mzml_path):
raise IOError((
"No such file {}. If {} was relocated, you may need to explicily pass the"
" corrected file path.").format(
self.mzml_path,
self.database_connection._original_connection))
self.scan_loader = ProcessedMzMLDeserializer(self.mzml_path)
def __init__(self, record, minimum_mass=None, abundance_threshold=None):
SimpleViewBase.__init__(self)
self.record = record
self.reader = ProcessedMzMLDeserializer(record.path)
self.scan_levels = {
"1": len(self.reader.extended_index.ms1_ids),
"N": len(self.reader.extended_index.msn_ids)
}
self.minimum_mass = minimum_mass
self.abundance_threshold = abundance_threshold
self._chromatograms = None
self.chromatograms = None
self.total_ion_chromatogram = None
self.oxonium_ion_chromatogram = None
self.chromatogram_artist = None
self.oxonium_ion_artist = None
def add_sample(project_path, sample_path):
from glycresoft_app.project.project import Project
from ms_deisotope.output.mzml import ProcessedMzMLDeserializer
project = Project(project_path)
reader = ProcessedMzMLDeserializer(abspath(sample_path))
record = project.sample_manager.make_record(reader)
project.sample_manager.put(record)
project.sample_manager.dump()
def is_resolvable(self):
if not os.path.exists(self.path):
return False
reader = ProcessedMzMLDeserializer(self.path, use_index=False)
sample_run = reader.sample_run
if sample_run.uuid != self.uuid:
return False
return True
def test_consumer(self):
(ms1_peak_picking_args, msn_peak_picking_args, ms1_deconvolution_args,
msn_deconvolution_args) = self.build_args()
outdir = self.make_output_directory()
outpath = os.path.join(outdir, "test-output.mzML")
consumer = SampleConsumer(
agp_glycproteomics_mzml,
ms1_peak_picking_args=ms1_peak_picking_args,
ms1_deconvolution_args=ms1_deconvolution_args,
msn_peak_picking_args=msn_peak_picking_args,
msn_deconvolution_args=msn_deconvolution_args,
storage_path=outpath,
sample_name=None,
n_processes=5,
extract_only_tandem_envelopes=True,
ms1_averaging=1)
consumer.start()
reader = ProcessedMzMLDeserializer(outpath)
reference = ProcessedMzMLDeserializer(
agp_glycproteomics_mzml_reference)
for a_bunch, b_bunch in zip(reader, reference):
assert a_bunch.precursor.id == b_bunch.precursor.id
assert len(a_bunch.products) == len(b_bunch.products)
for a_product, b_product in zip(a_bunch.products,
b_bunch.products):
assert a_product.precursor_information.defaulted == b_product.precursor_information.defaulted
matched = np.isclose(
a_product.precursor_information.neutral_mass,
b_product.precursor_information.neutral_mass)
message = [
"%0.3f not close to %0.3f for %s of %s" %
(a_product.precursor_information.neutral_mass,
b_product.precursor_information.neutral_mass,
a_product.id,
a_product.precursor_information.precursor_scan_id)
]
message.append(
"Found precursor score %r, expected %r" %
(a_product.precursor_information.precursor.
deconvoluted_peak_set.has_peak(
a_product.precursor_information.neutral_mass).score,
b_product.precursor_information.precursor.
deconvoluted_peak_set.has_peak(
b_product.precursor_information.neutral_mass).score))
assert matched, '\n'.join(message)
assert len(a_product.deconvoluted_peak_set) == len(
b_product.deconvoluted_peak_set)
reader.close()
reference.close()
self.cleanup(outdir)
def oxonium_signature(ms_file, g_score_threshold=0.05):
reader = ProcessedMzMLDeserializer(ms_file)
if not reader.has_index_file():
click.secho("Building temporary index...", fg='yellow')
index, intervals = quick_index.index(ms_deisotope.MSFileLoader(ms_file))
reader.extended_index = index
with open(reader._index_file_name, 'w') as handle:
index.serialize(handle)
from glycan_profiling.tandem.glycan.scoring.signature_ion_scoring import SignatureIonScorer
from glycan_profiling.tandem.oxonium_ions import gscore_scanner
refcomp = glypy.GlycanComposition.parse("{Fuc:1; Hex:5; HexNAc:4; Neu5Ac:2}")
for scan_id in reader.extended_index.msn_ids.keys():
scan = reader.get_scan_by_id(scan_id)
gscore = gscore_scanner(scan.deconvoluted_peak_set)
if gscore >= g_score_threshold:
signature_match = SignatureIonScorer.evaluate(scan, refcomp)
click.echo("%s\t%f\t%r\t%f\t%f" % (
scan_id, scan.precursor_information.neutral_mass,
scan.precursor_information.charge, gscore,
signature_match.score))
def make_peak_loader(self):
peak_loader = ProcessedMzMLDeserializer(self.sample_path)
if peak_loader.extended_index is None:
if not peak_loader.has_index_file():
self.log("Index file missing. Rebuilding.")
peak_loader.build_extended_index()
else:
peak_loader.read_index_file()
if peak_loader.extended_index is None or len(peak_loader.extended_index.msn_ids) < 1:
raise ValueError("Sample Data Invalid: Could not validate MS/MS Index")
return peak_loader
def msfile_info(ms_file):
reader = ProcessedMzMLDeserializer(ms_file)
if not reader.has_index_file():
index, intervals = quick_index.index(
ms_deisotope.MSFileLoader(ms_file))
reader.extended_index = index
with open(reader._index_file_name, 'w') as handle:
index.serialize(handle)
click.echo("Name: %s" % (os.path.basename(ms_file), ))
click.echo("MS1 Scans: %d" % (len(reader.extended_index.ms1_ids), ))
click.echo("MSn Scans: %d" % (len(reader.extended_index.msn_ids), ))
n_defaulted = 0
n_orphan = 0
charges = defaultdict(int)
first_msn = float('inf')
last_msn = 0
for scan_info in reader.extended_index.msn_ids.values():
n_defaulted += scan_info.get('defaulted', False)
n_orphan += scan_info.get('orphan', False)
charges[scan_info['charge']] += 1
rt = scan_info['scan_time']
if rt < first_msn:
first_msn = rt
if rt > last_msn:
last_msn = rt
click.echo("First MSn Scan: %0.2f Minutes" % (first_msn, ))
click.echo("Last MSn Scan: %0.2f Minutes" % (last_msn, ))
for charge, count in sorted(charges.items()):
if not isinstance(charge, int):
continue
click.echo("Precursors with Charge State %d: %d" % (charge, count))
click.echo("Defaulted MSn Scans: %d" % (n_defaulted, ))
click.echo("Orphan MSn Scans: %d" % (n_orphan, ))
def oxonium_signature(ms_file, g_score_threshold=0.05):
reader = ProcessedMzMLDeserializer(ms_file)
if not reader.has_index_file():
click.secho("Building temporary index...", fg='yellow')
index, intervals = quick_index.index(
ms_deisotope.MSFileLoader(ms_file))
reader.extended_index = index
with open(reader._index_file_name, 'w') as handle:
index.serialize(handle)
from glycan_profiling.tandem.glycan.scoring.signature_ion_scoring import SignatureIonScorer
from glycan_profiling.tandem.oxonium_ions import gscore_scanner
refcomp = glypy.GlycanComposition.parse(
"{Fuc:1; Hex:5; HexNAc:4; Neu5Ac:2}")
for scan_id in reader.extended_index.msn_ids.keys():
scan = reader.get_scan_by_id(scan_id)
gscore = gscore_scanner(scan.deconvoluted_peak_set)
if gscore >= g_score_threshold:
signature_match = SignatureIonScorer.evaluate(scan, refcomp)
click.echo("%s\t%f\t%r\t%f\t%f" %
(scan_id, scan.precursor_information.neutral_mass,
scan.precursor_information.charge, gscore,
signature_match.score))
def make_record(cls, reader):
if isinstance(reader, basestring):
reader = ProcessedMzMLDeserializer(reader, use_index=True)
sample = reader.sample_run
if len(reader.extended_index.msn_ids) > 0:
sample_type = "MS/MS Sample"
else:
sample_type = "MS Sample"
record = SampleRunRecord(name=sample.name,
uuid=sample.uuid,
path=reader.source_file,
completed=True,
sample_type=sample_type)
return record
def msfile_info(ms_file):
reader = ProcessedMzMLDeserializer(ms_file)
if not reader.has_index_file():
index, intervals = quick_index.index(ms_deisotope.MSFileLoader(ms_file))
reader.extended_index = index
with open(reader._index_file_name, 'w') as handle:
index.serialize(handle)
click.echo("Name: %s" % (os.path.basename(ms_file),))
click.echo("MS1 Scans: %d" % (len(reader.extended_index.ms1_ids),))
click.echo("MSn Scans: %d" % (len(reader.extended_index.msn_ids),))
n_defaulted = 0
n_orphan = 0
charges = defaultdict(int)
first_msn = float('inf')
last_msn = 0
for scan_info in reader.extended_index.msn_ids.values():
n_defaulted += scan_info.get('defaulted', False)
n_orphan += scan_info.get('orphan', False)
charges[scan_info['charge']] += 1
rt = scan_info['scan_time']
if rt < first_msn:
first_msn = rt
if rt > last_msn:
last_msn = rt
click.echo("First MSn Scan: %0.2f Minutes" % (first_msn,))
click.echo("Last MSn Scan: %0.2f Minutes" % (last_msn,))
for charge, count in sorted(charges.items()):
if not isinstance(charge, int):
continue
click.echo("Precursors with Charge State %d: %d" % (charge, count))
click.echo("Defaulted MSn Scans: %d" % (n_defaulted,))
click.echo("Orphan MSn Scans: %d" % (n_orphan,))
def make_peak_loader(self):
peak_loader = ProcessedMzMLDeserializer(self.sample_path)
if peak_loader.extended_index is None:
if not peak_loader.has_index_file():
self.log("Index file missing. Rebuilding.")
peak_loader.build_extended_index()
else:
peak_loader.read_index_file()
if peak_loader.extended_index is None or len(peak_loader.extended_index.msn_ids) < 1:
raise ValueError("Sample Data Invalid: Could not validate MS/MS Index")
return peak_loader
def test_consumer(self):
(ms1_peak_picking_args, msn_peak_picking_args,
ms1_deconvolution_args, msn_deconvolution_args) = self.build_args()
outdir = self.make_output_directory()
outpath = os.path.join(outdir, "test-output.mzML")
consumer = SampleConsumer(
agp_glycproteomics_mzml,
ms1_peak_picking_args=ms1_peak_picking_args,
ms1_deconvolution_args=ms1_deconvolution_args,
msn_peak_picking_args=msn_peak_picking_args,
msn_deconvolution_args=msn_deconvolution_args,
storage_path=outpath, sample_name=None,
n_processes=5,
extract_only_tandem_envelopes=True,
ms1_averaging=1)
consumer.start()
reader = ProcessedMzMLDeserializer(outpath)
reference = ProcessedMzMLDeserializer(agp_glycproteomics_mzml_reference)
for a_bunch, b_bunch in zip(reader, reference):
assert a_bunch.precursor.id == b_bunch.precursor.id
assert len(a_bunch.products) == len(b_bunch.products)
for a_product, b_product in zip(a_bunch.products, b_bunch.products):
assert a_product.precursor_information.defaulted == b_product.precursor_information.defaulted
matched = np.isclose(a_product.precursor_information.neutral_mass,
b_product.precursor_information.neutral_mass)
message = ["%0.3f not close to %0.3f for %s of %s" % (
a_product.precursor_information.neutral_mass,
b_product.precursor_information.neutral_mass,
a_product.id, a_product.precursor_information.precursor_scan_id)]
message.append("Found precursor score %r, expected %r" % (
a_product.precursor_information.precursor.deconvoluted_peak_set.has_peak(
a_product.precursor_information.neutral_mass).score,
b_product.precursor_information.precursor.deconvoluted_peak_set.has_peak(
b_product.precursor_information.neutral_mass).score
))
assert matched, '\n'.join(message)
assert len(a_product.deconvoluted_peak_set) == len(b_product.deconvoluted_peak_set)
reader.close()
reference.close()
self.cleanup(outdir)
def analyze_glycopeptide_sequences(
database_connection,
sample_path,
hypothesis_identifier,
output_path,
analysis_name,
grouping_error_tolerance=1.5e-5,
mass_error_tolerance=1e-5,
msn_mass_error_tolerance=2e-5,
psm_fdr_threshold=0.05,
peak_shape_scoring_model=None,
minimum_oxonium_threshold=0.05,
workload_size=1000,
use_peptide_mass_filter=True,
mass_shifts=None,
permute_decoy_glycan_fragments=False,
include_rare_signature_ions=False,
model_retention_time=False,
search_strategy=GlycopeptideSearchStrategyEnum.classic,
decoy_database_connection=None,
decoy_hypothesis_id=None,
tandem_scoring_model=None,
channel=None,
**kwargs):
if peak_shape_scoring_model is None:
peak_shape_scoring_model = GeneralScorer.clone()
peak_shape_scoring_model.add_feature(get_feature("null_charge"))
database_connection = DatabaseBoundOperation(database_connection)
if decoy_database_connection:
decoy_database_connection = DatabaseBoundOperation(
decoy_database_connection)
if not os.path.exists(sample_path):
channel.send(
Message("Could not locate sample %r" % sample_path, "error"))
return
reader = ProcessedMzMLDeserializer(sample_path, use_index=False)
sample_run = reader.sample_run
try:
hypothesis = get_by_name_or_id(database_connection,
GlycopeptideHypothesis,
hypothesis_identifier)
except Exception:
channel.send(
Message("Could not locate hypothesis %r" % hypothesis_identifier,
"error"))
channel.abort("An error occurred during analysis.")
if decoy_database_connection:
try:
decoy_hypothesis = get_by_name_or_id(decoy_database_connection,
GlycopeptideHypothesis,
decoy_hypothesis_id)
except Exception:
channel.send(
Message("Could not locate hypothesis %r" % decoy_hypothesis_id,
"error"))
channel.abort("An error occurred during analysis.")
if analysis_name is None:
analysis_name = "%s @ %s" % (sample_run.name, hypothesis.name)
analysis_name = validate_analysis_name(None, database_connection.session,
analysis_name)
try:
mass_shift_out = []
for mass_shift, multiplicity in mass_shifts:
mass_shift_out.append(validate_mass_shift(mass_shift,
multiplicity))
expanded = []
expanded = MzMLGlycanChromatogramAnalyzer.expand_mass_shifts(
dict(mass_shift_out), crossproduct=False)
mass_shifts = expanded
except Abort:
channel.send(Message.traceback())
return
try:
if search_strategy == GlycopeptideSearchStrategyEnum.classic:
analyzer = MzMLGlycopeptideLCMSMSAnalyzer(
database_connection._original_connection,
hypothesis.id,
sample_path,
output_path=output_path,
analysis_name=analysis_name,
grouping_error_tolerance=grouping_error_tolerance,
mass_error_tolerance=mass_error_tolerance,
msn_mass_error_tolerance=msn_mass_error_tolerance,
psm_fdr_threshold=psm_fdr_threshold,
peak_shape_scoring_model=peak_shape_scoring_model,
oxonium_threshold=minimum_oxonium_threshold,
spectrum_batch_size=workload_size,
use_peptide_mass_filter=use_peptide_mass_filter,
mass_shifts=mass_shifts,
permute_decoy_glycans=permute_decoy_glycan_fragments,
rare_signatures=include_rare_signature_ions,
model_retention_time=model_retention_time,
tandem_scoring_model=tandem_scoring_model)
elif search_strategy == GlycopeptideSearchStrategyEnum.classic_comparison:
analyzer = MzMLComparisonGlycopeptideLCMSMSAnalyzer(
database_connection._original_connection,
decoy_database_connection._original_connection,
hypothesis.id,
sample_path,
output_path=output_path,
analysis_name=analysis_name,
grouping_error_tolerance=grouping_error_tolerance,
mass_error_tolerance=mass_error_tolerance,
msn_mass_error_tolerance=msn_mass_error_tolerance,
psm_fdr_threshold=psm_fdr_threshold,
peak_shape_scoring_model=peak_shape_scoring_model,
oxonium_threshold=minimum_oxonium_threshold,
spectrum_batch_size=workload_size,
use_peptide_mass_filter=use_peptide_mass_filter,
mass_shifts=mass_shifts,
permute_decoy_glycans=permute_decoy_glycan_fragments,
rare_signatures=include_rare_signature_ions,
model_retention_time=model_retention_time,
tandem_scoring_model=tandem_scoring_model)
elif search_strategy == GlycopeptideSearchStrategyEnum.multipart:
analyzer = MultipartGlycopeptideLCMSMSAnalyzer(
database_connection._original_connection,
decoy_database_connection._original_connection,
hypothesis.id,
decoy_hypothesis.id,
sample_path,
output_path=output_path,
analysis_name=analysis_name,
grouping_error_tolerance=grouping_error_tolerance,
mass_error_tolerance=mass_error_tolerance,
msn_mass_error_tolerance=msn_mass_error_tolerance,
psm_fdr_threshold=psm_fdr_threshold,
peak_shape_scoring_model=peak_shape_scoring_model,
spectrum_batch_size=workload_size,
mass_shifts=mass_shifts,
rare_signatures=include_rare_signature_ions,
model_retention_time=model_retention_time,
tandem_scoring_model=tandem_scoring_model)
_ = analyzer.start()
analysis = analyzer.analysis
if analysis is not None:
record = project_analysis.AnalysisRecord(
name=analysis.name,
id=analysis.id,
uuid=analysis.uuid,
path=output_path,
analysis_type=analysis.analysis_type,
hypothesis_uuid=analysis.hypothesis.uuid,
hypothesis_name=analysis.hypothesis.name,
sample_name=analysis.parameters['sample_name'],
user_id=channel.user.id)
channel.send(Message(record.to_json(), 'new-analysis'))
else:
channel.send(
Message("No glycopeptides were identified for \"%s\"" %
(analysis_name, )))
except Exception:
channel.send(Message.traceback())
channel.abort("An error occurred during analysis.")
class SampleView(SimpleViewBase):
def __init__(self, record, minimum_mass=None, abundance_threshold=None):
SimpleViewBase.__init__(self)
self.record = record
self.reader = ProcessedMzMLDeserializer(record.path)
self.scan_levels = {
"1": len(self.reader.extended_index.ms1_ids),
"N": len(self.reader.extended_index.msn_ids)
}
self.minimum_mass = minimum_mass
self.abundance_threshold = abundance_threshold
self._chromatograms = None
self.chromatograms = None
self.total_ion_chromatogram = None
self.oxonium_ion_chromatogram = None
self.chromatogram_artist = None
self.oxonium_ion_artist = None
@property
def chromatograms(self):
if self._chromatograms is None:
self.build_chromatograms()
return self._chromatograms
@chromatograms.setter
def chromatograms(self, value):
self._chromatograms = value
def _estimate_threshold(self):
intensity_accumulator = []
mz_accumulator = []
charge_accumulator = []
if not self.reader.extended_index.ms1_ids:
self.mass_array = np.array([])
self.charge_array = np.array([])
self.intensity_array = np.array([])
self.abundance_threshold = 0
self.minimum_mass = 0
return
for scan_id in self.reader.extended_index.ms1_ids:
header = self.reader.get_scan_header_by_id(scan_id)
intensity_accumulator.extend(header.arrays.intensity)
mz_accumulator.extend(header.arrays.mz)
try:
charge_accumulator.extend(header['charge array'])
except Exception:
charge_accumulator.extend(
np.ones_like(header.arrays.mz) * header.polarity)
mass_array = ms_deisotope.neutral_mass(np.array(mz_accumulator),
np.array(charge_accumulator))
self.mass_array = mass_array
self.charge_array = np.array(charge_accumulator, dtype=int)
self.intensity_array = np.array(intensity_accumulator)
if self.abundance_threshold is None and intensity_accumulator:
self.abundance_threshold = np.percentile(intensity_accumulator, 90)
if self.minimum_mass is None and len(mass_array):
counts, bins = np.histogram(self.mass_array)
self.minimum_mass = np.average(bins[:-1], weights=counts)
def build_oxonium_ion_chromatogram(self):
window_width = 0.01
ox_time = []
ox_current = []
for scan_id in self.reader.extended_index.msn_ids:
try:
scan = self.reader.get_scan_header_by_id(scan_id)
except AttributeError:
print("Unable to resolve scan id %r" % scan_id)
break
mz, intens = scan.arrays
total = 0
for ion in standard_oxonium_ions:
coords = sweep(mz, ion.mass() + 1.007, window_width)
total += intens[coords].sum()
ox_time.append(scan.scan_time)
ox_current.append(total)
self.oxonium_ion_chromatogram = list(
map(np.array, (ox_time, ox_current)))
def draw_chromatograms(self):
if self.chromatograms is None:
self.build_chromatograms()
ax = figax()
chromatograms = list(self.chromatograms)
if len(chromatograms):
chromatograms.append(self.total_ion_chromatogram)
chromatograms = [
chrom for chrom in chromatograms if len(chrom) > 0
]
a = SmoothingChromatogramArtist(
chromatograms, ax=ax, colorizer=lambda *a, **k: 'lightblue')
a.draw(label_function=lambda *a, **kw: "")
rt, intens = self.total_ion_chromatogram.as_arrays()
a.draw_generic_chromatogram("TIC", rt, intens, 'lightblue')
a.ax.set_ylim(0, max(intens) * 1.1)
chromatogram_artist = a
fig = chromatogram_artist.ax.get_figure()
fig.set_figwidth(10)
fig.set_figheight(5)
# if self.reader.extended_index.msn_ids:
# oxonium_axis = ax.twinx()
# stub = SimpleChromatogram(
# self.total_ion_chromatogram.time_converter)
# for key in self.total_ion_chromatogram:
# stub[key] = 0
# oxonium_ion_artist = SmoothingChromatogramArtist(
# [stub],
# ax=oxonium_axis).draw(
# label_function=lambda *a, **kw: "")
# rt, intens = self.oxonium_ion_chromatogram
# oxonium_axis.set_ylim(0, max(intens) * 1.1)
# oxonium_axis.yaxis.tick_right()
# oxonium_axis.axes.spines['right'].set_visible(True)
# oxonium_axis.set_ylabel("Oxonium Abundance", fontsize=18)
# oxonium_ion_artist.draw_generic_chromatogram(
# "Oxonium Ions", rt, intens, 'green')
else:
ax.text(0.5,
0.5,
"No chromatograms extracted",
ha='center',
fontsize=16)
ax.axis('off')
return png_plot(ax,
patchless=True,
bbox_inches='tight',
width=12,
height=8)
def build_chromatograms(self):
if self.abundance_threshold is None:
self._estimate_threshold()
ex = ChromatogramExtractor(self.reader,
minimum_intensity=self.abundance_threshold,
minimum_mass=self.minimum_mass)
self.chromatograms = ex.run()
self.total_ion_chromatogram = ex.total_ion_chromatogram
if self.reader.extended_index.msn_ids:
self.build_oxonium_ion_chromatogram()
def draw_lcms_map(self):
if self.abundance_threshold is None:
self._estimate_threshold()
ax = figax()
artist = LCMSMapArtist.from_peak_loader(
self.reader, threshold=self.abundance_threshold / 2., ax=ax)
artist.draw()
return png_plot(ax,
patchless=True,
bbox_inches='tight',
width=10,
height=10)
def test_writer(self):
source_reader = MzMLLoader(self.source_data_path)
fd, name = tempfile.mkstemp()
with open(name, 'wb') as fh:
writer = MzMLSerializer(fh,
n_spectra=len(source_reader.index),
deconvoluted=True)
description = source_reader.file_description()
writer.add_file_information(description)
writer.add_file_contents("profile spectrum")
writer.add_file_contents("centroid spectrum")
writer.remove_file_contents("profile spectrum")
instrument_configs = source_reader.instrument_configuration()
for config in instrument_configs:
writer.add_instrument_configuration(config)
software_list = source_reader.software_list()
for software in software_list:
writer.add_software(software)
data_processing_list = source_reader.data_processing()
for dp in data_processing_list:
writer.add_data_processing(dp)
processing = writer.build_processing_method()
writer.add_data_processing(processing)
bunch = next(source_reader)
bunch.precursor.pick_peaks()
bunch.precursor.deconvolute()
for product in bunch.products:
product.pick_peaks()
product.deconvolute()
writer.save(bunch)
writer.complete()
fh.flush()
writer.format()
source_reader.reset()
processed_reader = ProcessedMzMLDeserializer(
_compression.get_opener(writer.handle.name))
for a, b in zip(source_reader.instrument_configuration(),
processed_reader.instrument_configuration()):
assert a.analyzers == b.analyzers
for a, b in zip(source_reader, processed_reader):
assert a.precursor.id == b.precursor.id
assert (a.precursor.acquisition_information ==
b.precursor.acquisition_information)
for an, bn in zip(a.products, b.products):
assert an.id == bn.id
assert abs(an.precursor_information.neutral_mass -
bn.precursor_information.neutral_mass) < 1e-6
processed_reader.reset()
description = processed_reader.file_description()
assert "profile spectrum" not in description.contents
assert "centroid spectrum" in description.contents
sf = description.source_files[0]
assert 'location' not in sf.parameters
assert sf.parameters[
'SHA-1'] == 'a2a091b82f27676da87a6c7d17cc90d2d90b8fbf'
index = processed_reader.extended_index
pinfo = index.find_msms_by_precursor_mass(
ms_deisotope.neutral_mass(562.7397, 2))
assert len(pinfo) > 0
processed_reader.close()
try:
os.remove(name)
os.remove(processed_reader._index_file_name)
except OSError:
pass
def analyze_glycopeptide_sequences(database_connection,
sample_path,
hypothesis_identifier,
output_path,
analysis_name,
grouping_error_tolerance=1.5e-5,
mass_error_tolerance=1e-5,
msn_mass_error_tolerance=2e-5,
psm_fdr_threshold=0.05,
peak_shape_scoring_model=None,
minimum_oxonium_threshold=0.05,
workload_size=1000,
channel=None,
**kwargs):
if peak_shape_scoring_model is None:
peak_shape_scoring_model = chromatogram_solution.ChromatogramScorer(
shape_fitter_type=shape_fitter.
AdaptiveMultimodalChromatogramShapeFitter)
database_connection = DatabaseBoundOperation(database_connection)
if not os.path.exists(sample_path):
channel.send(
Message("Could not locate sample %r" % sample_path, "error"))
return
reader = ProcessedMzMLDeserializer(sample_path, use_index=False)
sample_run = reader.sample_run
try:
hypothesis = get_by_name_or_id(database_connection,
GlycopeptideHypothesis,
hypothesis_identifier)
except Exception:
channel.send(
Message("Could not locate hypothesis %r" % hypothesis_identifier,
"error"))
channel.abort("An error occurred during analysis.")
if analysis_name is None:
analysis_name = "%s @ %s" % (sample_run.name, hypothesis.name)
analysis_name = validate_analysis_name(None, database_connection.session,
analysis_name)
try:
analyzer = MzMLGlycopeptideLCMSMSAnalyzer(
database_connection._original_connection,
hypothesis.id,
sample_path,
output_path=output_path,
analysis_name=analysis_name,
grouping_error_tolerance=grouping_error_tolerance,
mass_error_tolerance=mass_error_tolerance,
msn_mass_error_tolerance=msn_mass_error_tolerance,
psm_fdr_threshold=psm_fdr_threshold,
peak_shape_scoring_model=peak_shape_scoring_model,
oxonium_threshold=minimum_oxonium_threshold,
spectra_chunk_size=workload_size)
gps, unassigned, target_hits, decoy_hits = analyzer.start()
analysis = analyzer.analysis
record = project_analysis.AnalysisRecord(
name=analysis.name,
id=analysis.id,
uuid=analysis.uuid,
path=output_path,
analysis_type=analysis.analysis_type,
hypothesis_uuid=analysis.hypothesis.uuid,
hypothesis_name=analysis.hypothesis.name,
sample_name=analysis.parameters['sample_name'],
user_id=channel.user.id)
channel.send(Message(record.to_json(), 'new-analysis'))
except Exception:
channel.send(Message.traceback())
channel.abort("An error occurred during analysis.")
def open_file(index_file):
data_file = index_file.rsplit("-", 1)[0]
reader = ProcessedMzMLDeserializer(data_file, use_index=False)
reader.read_index_file()
return reader
def preprocess(mzml_file, database_connection, averagine=None, start_time=None, end_time=None,
maximum_charge=None, name=None, msn_averagine=None, score_threshold=35.,
msn_score_threshold=5., missed_peaks=1, msn_missed_peaks=1, n_processes=5, storage_path=None,
extract_only_tandem_envelopes=False, ms1_background_reduction=5.,
msn_background_reduction=0, ms1_averaging=0, channel=None):
minimum_charge = 1 if maximum_charge > 0 else -1
charge_range = (minimum_charge, maximum_charge)
logger.info("Begin Scan Interpolation")
loader: RandomAccessScanSource = MSFileLoader(mzml_file)
if len(loader) == 0:
channel.abort("Cannot process an empty MS data file")
start_scan = loader.get_scan_by_time(start_time)
if start_scan is None:
start_scan = loader[0]
if loader.has_ms1_scans() == False:
extract_only_tandem_envelopes = False
try:
start_scan_id = loader._locate_ms1_scan(start_scan).id
except IndexError:
start_scan_id = start_scan.id
end_scan = loader.get_scan_by_time(end_time)
if end_scan is None:
end_scan = loader[-1]
try:
end_scan_id = loader._locate_ms1_scan(end_scan).id
except IndexError:
end_scan_id = end_scan.id
loader.reset()
loader.make_iterator(grouped=True)
first_batch = next(loader)
if first_batch.precursor is not None:
is_profile = first_batch.precursor.is_profile
elif first_batch.products:
is_profile = first_batch.products[0].is_profile
if is_profile:
logger.info("Spectra are profile")
else:
logger.info("Spectra are centroided")
logger.info("Resolving Sample Name")
if name is None:
name = os.path.splitext(os.path.basename(mzml_file))[0]
name = validate_sample_run_name(None, database_connection, name)
logger.info("Validating arguments")
try:
averagine = validate_averagine(averagine)
except Exception:
channel.abort("Could not validate MS1 Averagine %s" % averagine)
try:
msn_averagine = validate_averagine(msn_averagine)
except Exception:
channel.abort("Could not validate MSn Averagine %s" % msn_averagine)
if is_profile:
ms1_peak_picking_args = {
"transforms": [
ms_peak_picker.scan_filter.FTICRBaselineRemoval(
scale=ms1_background_reduction, window_length=2.),
ms_peak_picker.scan_filter.SavitskyGolayFilter()
],
'signal_to_noise_threshold': 1.0,
}
if ms1_background_reduction == 0:
ms1_peak_picking_args['transforms'] = []
else:
ms1_peak_picking_args = {
"transforms": [
ms_peak_picker.scan_filter.FTICRBaselineRemoval(
scale=ms1_background_reduction, window_length=2.),
]
}
if ms1_background_reduction == 0:
ms1_peak_picking_args['transforms'] = []
if msn_background_reduction > 0:
msn_peak_picking_args = {
"transforms": [
ms_peak_picker.scan_filter.FTICRBaselineRemoval(
scale=msn_background_reduction, window_length=2.),
]
}
else:
msn_peak_picking_args = {'transforms': []}
ms1_deconvolution_args = {
"scorer": ms_deisotope.scoring.PenalizedMSDeconVFitter(score_threshold, 2.),
"averagine": averagine,
"charge_range": charge_range,
"max_missed_peaks": missed_peaks,
"truncate_after": SampleConsumer.MS1_ISOTOPIC_PATTERN_WIDTH,
"ignore_below": SampleConsumer.MS1_IGNORE_BELOW
}
msn_deconvolution_args = {
"scorer": ms_deisotope.scoring.MSDeconVFitter(msn_score_threshold),
"averagine": msn_averagine,
"charge_range": charge_range,
"max_missed_peaks": msn_missed_peaks,
"truncate_after": SampleConsumer.MSN_ISOTOPIC_PATTERN_WIDTH,
"ignore_below": SampleConsumer.MSN_IGNORE_BELOW
}
consumer = SampleConsumer(
mzml_file,
ms1_peak_picking_args=ms1_peak_picking_args,
ms1_deconvolution_args=ms1_deconvolution_args,
msn_peak_picking_args=msn_peak_picking_args,
msn_deconvolution_args=msn_deconvolution_args,
storage_path=storage_path,
sample_name=name,
start_scan_id=start_scan_id,
end_scan_id=end_scan_id,
n_processes=n_processes,
extract_only_tandem_envelopes=extract_only_tandem_envelopes,
ms1_averaging=ms1_averaging,
cache_handler_type=ThreadedMzMLScanCacheHandler)
try:
consumer.start()
logger.info("Updating New Sample Run")
reader = ProcessedMzMLDeserializer(storage_path, use_index=False)
reader.read_index_file()
sample_run_data = reader.sample_run
if reader.extended_index.msn_ids:
sample_type = "MS/MS Sample"
else:
sample_type = "MS Sample"
sample_run = sample.SampleRunRecord(
name=sample_run_data.name,
uuid=sample_run_data.uuid,
completed=True,
path=storage_path,
sample_type=sample_type,
user_id=channel.user.id)
channel.send(Message(sample_run.to_json(), "new-sample-run"))
except Exception:
channel.send(Message.traceback())
channel.abort("An error occurred during preprocessing.")
class GlycopeptideDatabaseSearchReportCreator(ReportCreatorBase):
def __init__(self, database_path, analysis_id, stream=None, threshold=5,
mzml_path=None):
super(GlycopeptideDatabaseSearchReportCreator, self).__init__(
database_path, analysis_id, stream)
self.set_template_loader(os.path.dirname(__file__))
self.mzml_path = mzml_path
self.scan_loader = None
self.threshold = threshold
self.use_dynamic_display_mode = 0
self.analysis = self.session.query(serialize.Analysis).get(self.analysis_id)
self._resolve_hypothesis_id()
self._build_protein_index()
self._make_scan_loader()
self._glycopeptide_counter = 0
if len(self.protein_index) > 10:
self.use_dynamic_display_mode = 1
def _resolve_hypothesis_id(self):
self.hypothesis_id = self.analysis.hypothesis_id
hypothesis = self.session.query(serialize.GlycopeptideHypothesis).get(self.hypothesis_id)
if hypothesis is None:
self.hypothesis_id = 1
hypothesis = self.session.query(serialize.GlycopeptideHypothesis).get(
self.hypothesis_id)
if hypothesis is None:
raise ValueError("Could not resolve Glycopeptide Hypothesis!")
def prepare_environment(self):
super(GlycopeptideDatabaseSearchReportCreator, self).prepare_environment()
def _build_protein_index(self):
hypothesis_id = self.hypothesis_id
theoretical_counts = self.session.query(Protein.name, Protein.id, func.count(Glycopeptide.id)).join(
Glycopeptide).group_by(Protein.id).filter(
Protein.hypothesis_id == hypothesis_id).all()
matched_counts = self.session.query(Protein.name, Protein.id, func.count(IdentifiedGlycopeptide.id)).join(
Glycopeptide).join(
IdentifiedGlycopeptide, IdentifiedGlycopeptide.structure_id == Glycopeptide.id).group_by(
Protein.id).filter(
IdentifiedGlycopeptide.ms2_score > self.threshold,
IdentifiedGlycopeptide.analysis_id == self.analysis_id).all()
listing = []
index = {}
for protein_name, protein_id, glycopeptide_count in theoretical_counts:
index[protein_id] = {
"protein_name": protein_name,
"protein_id": protein_id,
}
for protein_name, protein_id, glycopeptide_count in matched_counts:
entry = index[protein_id]
entry['identified_glycopeptide_count'] = glycopeptide_count
listing.append(entry)
self.protein_index = sorted(listing, key=lambda x: x["identified_glycopeptide_count"], reverse=True)
for protein_entry in self.protein_index:
protein_entry['protein'] = self.session.query(Protein).get(protein_entry["protein_id"])
return self.protein_index
def _make_scan_loader(self):
if self.mzml_path is not None:
if not os.path.exists(self.mzml_path):
raise IOError("No such file {}".format(self.mzml_path))
self.scan_loader = ProcessedMzMLDeserializer(self.mzml_path)
else:
self.mzml_path = self.analysis.parameters['sample_path']
if not os.path.exists(self.mzml_path):
raise IOError((
"No such file {}. If {} was relocated, you may need to explicily pass the"
" corrected file path.").format(
self.mzml_path,
self.database_connection._original_connection))
self.scan_loader = ProcessedMzMLDeserializer(self.mzml_path)
def iterglycoproteins(self):
n = float(len(self.protein_index))
for i, row in enumerate(self.protein_index, 1):
protein = row['protein']
glycopeptides = self.session.query(
IdentifiedGlycopeptide).join(Glycopeptide).join(
Protein).filter(
IdentifiedGlycopeptide.analysis_id == self.analysis_id,
Glycopeptide.hypothesis_id == self.hypothesis_id,
IdentifiedGlycopeptide.ms2_score > self.threshold,
Protein.id == protein.id).all()
glycoprotein = IdentifiedGlycoprotein(protein, glycopeptides)
self.status_update(
"Processing %s (%d/%d) %0.2f%%" % (
protein.name, i, n, (i / n * 100)))
yield i, glycoprotein
def site_specific_abundance_plots(self, glycoprotein):
axes = OrderedDict()
for glyco_type in glycoprotein.glycosylation_types:
for site in sorted(glycoprotein.glycosylation_sites_for(glyco_type)):
spanning_site = glycoprotein.site_map[glyco_type][site]
if len(spanning_site) == 0:
continue
bundle = BundledGlycanComposition.aggregate(spanning_site)
if len(bundle) == 0:
continue
ax = figax()
AggregatedAbundanceArtist(
bundle, ax=ax, colorizer=glycan_colorizer_type_map[glyco_type]).draw()
ax.set_title("%s Glycans\nat Site %d" % (glyco_type.name, site + 1,), fontsize=18)
axes[site, glyco_type] = svguri_plot(ax, bbox_inches='tight')
return axes
def draw_glycoforms(self, glycoprotein):
ax = figax()
layout = GlycoformLayout(glycoprotein, glycoprotein.identified_glycopeptides, ax=ax)
layout.draw()
svg = layout.to_svg(scale=2.0, height_padding_scale=1.1)
return svg
def chromatogram_plot(self, glycopeptide):
ax = figax()
try:
SmoothingChromatogramArtist(
glycopeptide, ax=ax, label_peaks=False,
colorizer=lambda x: "#48afd0").draw(legend=False)
ax.set_xlabel("Time (Minutes)", fontsize=16)
ax.set_ylabel("Relative Abundance", fontsize=16)
return png_plot(ax, bbox_inches='tight', img_height='100%')
except ValueError:
return "<div style='text-align:center;'>No Chromatogram Found</div>"
def spectrum_match_info(self, glycopeptide):
matched_scans = []
for solution_set in glycopeptide.spectrum_matches:
best_solution = solution_set.best_solution()
try:
selected_solution = solution_set.solution_for(glycopeptide.structure)
except KeyError:
continue
pass_threshold = abs(selected_solution.score - best_solution.score) < 1e-6
if not pass_threshold:
continue
if isinstance(selected_solution.scan, SpectrumReference):
scan = self.session.query(MSScan).filter(
MSScan.scan_id == selected_solution.scan.id,
MSScan.sample_run_id == self.analysis.sample_run_id).first().convert()
else:
scan = selected_solution.scan
scan.score = selected_solution.score
matched_scans.append(scan)
spectrum_match_ref = max(glycopeptide.spectrum_matches, key=lambda x: x.score)
scan_id = spectrum_match_ref.scan.scan_id
scan = self.scan_loader.get_scan_by_id(scan_id)
try:
mass_shift = spectrum_match_ref[0].mass_shift
except Exception:
mass_shift = Unmodified
if mass_shift.name != Unmodified.name:
mass_shift = mass_shift.convert()
else:
mass_shift = Unmodified
match = CoverageWeightedBinomialScorer.evaluate(
scan, glycopeptide.structure.convert(),
error_tolerance=self.analysis.parameters["fragment_error_tolerance"],
mass_shift=mass_shift)
specmatch_artist = TidySpectrumMatchAnnotator(match, ax=figax())
specmatch_artist.draw(fontsize=10, pretty=True)
annotated_match_ax = specmatch_artist.ax
scan_title = scan.id
if len(scan_title) > 60:
scan_title = '\n'.join(textwrap.wrap(scan_title, 60))
annotated_match_ax.set_title(scan_title, fontsize=18)
annotated_match_ax.set_ylabel(annotated_match_ax.get_ylabel(), fontsize=16)
annotated_match_ax.set_xlabel(annotated_match_ax.get_xlabel(), fontsize=16)
sequence_logo_plot = glycopeptide_match_logo(match, ax=figax())
xlim = list(sequence_logo_plot.get_xlim())
xlim[0] += 1
sequence_logo_plot.set_xlim(xlim[0], xlim[1])
spectrum_plot = png_plot(
annotated_match_ax, svg_width="100%", bbox_inches='tight', height=3 * 1.5,
width=8 * 1.5,
img_width="100%",
patchless=True)
logo_plot = png_plot(
sequence_logo_plot,
svg_width="100%",
img_width="100%",
xml_transform=scale_fix_xml_transform,
bbox_inches='tight',
height=2, width=6 * 1.5, patchless=True)
return dict(
spectrum_plot=spectrum_plot, logo_plot=logo_plot,
precursor_mass_accuracy=match.precursor_mass_accuracy(),
spectrum_match=match)
def track_entry(self, glycopeptide):
self._glycopeptide_counter += 1
if self._glycopeptide_counter % 15 == 0:
self.status_update(
" ... %d glycopeptides handled" % (self._glycopeptide_counter,))
return self._glycopeptide_counter
def make_template_stream(self):
template_obj = self.env.get_template("overview.templ")
ads = serialize.AnalysisDeserializer(
self.database_connection._original_connection,
analysis_id=self.analysis_id)
hypothesis = ads.analysis.hypothesis
sample_run = ads.analysis.sample_run
if self.use_dynamic_display_mode:
self.status_update("Using dynamic display mode")
template_stream = template_obj.stream(
analysis=ads.analysis,
hypothesis=hypothesis,
sample_run=sample_run,
protein_index=self.protein_index,
glycoprotein_iterator=self.iterglycoproteins(),
renderer=self,
use_dynamic_display_mode=self.use_dynamic_display_mode)
return template_stream
def analyze_glycan_composition(database_connection,
sample_path,
hypothesis_identifier,
output_path,
analysis_name,
mass_shifts,
grouping_error_tolerance=1.5e-5,
mass_error_tolerance=1e-5,
scoring_model=None,
minimum_mass=500.,
smoothing_factor=None,
regularization_model=None,
combinatorial_mass_shift_limit=8,
channel=None,
**kwargs):
if scoring_model is None:
scoring_model = GeneralScorer
database_connection = DatabaseBoundOperation(database_connection)
if not os.path.exists(sample_path):
channel.send(
Message("Could not locate sample %r" % sample_path, "error"))
return
reader = ProcessedMzMLDeserializer(sample_path, use_index=False)
sample_run = reader.sample_run
try:
hypothesis = get_by_name_or_id(database_connection, GlycanHypothesis,
hypothesis_identifier)
except Exception:
channel.send(
Message("Could not locate hypothesis %r" % hypothesis_identifier,
"error"))
return
if analysis_name is None:
analysis_name = "%s @ %s" % (sample_run.name, hypothesis.name)
analysis_name = validate_analysis_name(None, database_connection.session,
analysis_name)
try:
mass_shift_out = []
for mass_shift, multiplicity in mass_shifts:
mass_shift_out.append(validate_mass_shift(mass_shift,
multiplicity))
expanded = []
expanded = MzMLGlycanChromatogramAnalyzer.expand_mass_shifts(
dict(mass_shift_out), limit=combinatorial_mass_shift_limit)
mass_shifts = expanded
except Abort:
channel.send(Message.traceback())
return
mass_shifts = expanded
try:
analyzer = MzMLGlycanChromatogramAnalyzer(
database_connection._original_connection,
hypothesis.id,
sample_path=sample_path,
output_path=output_path,
mass_shifts=mass_shifts,
mass_error_tolerance=mass_error_tolerance,
grouping_error_tolerance=grouping_error_tolerance,
scoring_model=scoring_model,
analysis_name=analysis_name,
minimum_mass=minimum_mass)
analyzer.start()
analysis = analyzer.analysis
record = project_analysis.AnalysisRecord(
name=analysis.name,
id=analysis.id,
uuid=analysis.uuid,
path=output_path,
analysis_type=analysis.analysis_type,
hypothesis_uuid=analysis.hypothesis.uuid,
hypothesis_name=analysis.hypothesis.name,
sample_name=analysis.parameters['sample_name'],
user_id=channel.user.id)
channel.send(Message(record.to_json(), 'new-analysis'))
except Exception:
channel.send(Message.traceback())
channel.abort("An error occurred during analysis.")
class GlycopeptideDatabaseSearchReportCreator(ReportCreatorBase):
def __init__(self,
database_path,
analysis_id,
stream=None,
threshold=5,
mzml_path=None):
super(GlycopeptideDatabaseSearchReportCreator,
self).__init__(database_path, analysis_id, stream)
self.set_template_loader(os.path.dirname(__file__))
self.mzml_path = mzml_path
self.scan_loader = None
self.threshold = threshold
self.analysis = self.session.query(serialize.Analysis).get(
self.analysis_id)
self._resolve_hypothesis_id()
self._build_protein_index()
self._make_scan_loader()
self._glycopeptide_counter = 0
def _resolve_hypothesis_id(self):
self.hypothesis_id = self.analysis.hypothesis_id
hypothesis = self.session.query(serialize.GlycopeptideHypothesis).get(
self.hypothesis_id)
if hypothesis is None:
self.hypothesis_id = 1
hypothesis = self.session.query(
serialize.GlycopeptideHypothesis).get(self.hypothesis_id)
if hypothesis is None:
raise ValueError("Could not resolve Glycopeptide Hypothesis!")
def prepare_environment(self):
super(GlycopeptideDatabaseSearchReportCreator,
self).prepare_environment()
def _build_protein_index(self):
hypothesis_id = self.hypothesis_id
theoretical_counts = self.session.query(
Protein.name, Protein.id,
func.count(Glycopeptide.id)).join(Glycopeptide).group_by(
Protein.id).filter(
Protein.hypothesis_id == hypothesis_id).all()
matched_counts = self.session.query(
Protein.name, Protein.id,
func.count(IdentifiedGlycopeptide.id)).join(Glycopeptide).join(
IdentifiedGlycopeptide,
IdentifiedGlycopeptide.structure_id == Glycopeptide.id
).group_by(Protein.id).filter(
IdentifiedGlycopeptide.ms2_score > self.threshold,
IdentifiedGlycopeptide.analysis_id == self.analysis_id).all()
listing = []
index = {}
for protein_name, protein_id, glycopeptide_count in theoretical_counts:
index[protein_id] = {
"protein_name": protein_name,
"protein_id": protein_id,
}
for protein_name, protein_id, glycopeptide_count in matched_counts:
entry = index[protein_id]
entry['identified_glycopeptide_count'] = glycopeptide_count
listing.append(entry)
self.protein_index = sorted(
listing,
key=lambda x: x["identified_glycopeptide_count"],
reverse=True)
for protein_entry in self.protein_index:
protein_entry['protein'] = self.session.query(Protein).get(
protein_entry["protein_id"])
return self.protein_index
def _make_scan_loader(self):
if self.mzml_path is not None:
if not os.path.exists(self.mzml_path):
raise IOError("No such file {}".format(self.mzml_path))
self.scan_loader = ProcessedMzMLDeserializer(self.mzml_path)
else:
self.mzml_path = self.analysis.parameters['sample_path']
if not os.path.exists(self.mzml_path):
raise IOError((
"No such file {}. If {} was relocated, you may need to explicily pass the"
" corrected file path.").format(
self.mzml_path,
self.database_connection._original_connection))
self.scan_loader = ProcessedMzMLDeserializer(self.mzml_path)
def iterglycoproteins(self):
n = float(len(self.protein_index))
for i, row in enumerate(self.protein_index, 1):
protein = row['protein']
glycopeptides = self.session.query(IdentifiedGlycopeptide).join(
Glycopeptide).join(Protein).filter(
IdentifiedGlycopeptide.analysis_id == self.analysis_id,
Glycopeptide.hypothesis_id == self.hypothesis_id,
IdentifiedGlycopeptide.ms2_score > self.threshold,
Protein.id == protein.id).all()
glycoprotein = IdentifiedGlycoprotein(protein, glycopeptides)
glycoprotein.id = protein.id
self.status_update("Processing %s (%d/%d) %0.2f%%" %
(protein.name, i, n, (i / n * 100)))
yield glycoprotein
def site_specific_abundance_plots(self, glycoprotein):
axes = OrderedDict()
for glyco_type in glycoprotein.glycosylation_types:
for site in sorted(
glycoprotein.glycosylation_sites_for(glyco_type)):
spanning_site = glycoprotein.site_map[glyco_type][site]
if len(spanning_site) == 0:
continue
bundle = BundledGlycanComposition.aggregate(spanning_site)
ax = figax()
AggregatedAbundanceArtist(
bundle,
ax=ax,
colorizer=glycan_colorizer_type_map[glyco_type]).draw()
ax.set_title("%s Glycans\nat Site %d" % (
glyco_type.name,
site,
),
fontsize=18)
axes[site, glyco_type] = svguri_plot(ax, bbox_inches='tight')
return axes
def draw_glycoforms(self, glycoprotein):
ax = figax()
layout = GlycoformLayout(glycoprotein,
glycoprotein.identified_glycopeptides,
ax=ax)
layout.draw()
svg = layout.to_svg(scale=2.0, height_padding_scale=1.1)
# svg = plot_glycoforms_svg(
# glycoprotein, glycoprotein.identified_glycopeptides, ax=ax,
# margin_left=85, margin_top=0, height_padding_scale=1.1)
return svg
def chromatogram_plot(self, glycopeptide):
ax = figax()
try:
SmoothingChromatogramArtist(
glycopeptide,
ax=ax,
label_peaks=False,
colorizer=lambda x: "#48afd0").draw(legend=False)
ax.set_xlabel("Time (Minutes)", fontsize=16)
ax.set_ylabel("Relative Abundance", fontsize=16)
return png_plot(ax, bbox_inches='tight', img_height='100%')
except ValueError:
return "<div style='text-align:center;'>No Chromatogram Found</div>"
def spectrum_match_info(self, glycopeptide):
matched_scans = []
for solution_set in glycopeptide.spectrum_matches:
best_solution = solution_set.best_solution()
try:
selected_solution = solution_set.solution_for(
glycopeptide.structure)
except KeyError:
continue
pass_threshold = abs(selected_solution.score -
best_solution.score) < 1e-6
if not pass_threshold:
continue
if isinstance(selected_solution.scan, SpectrumReference):
scan = self.session.query(MSScan).filter(
MSScan.scan_id == selected_solution.scan.id,
MSScan.sample_run_id ==
self.analysis.sample_run_id).first().convert()
else:
scan = selected_solution.scan
scan.score = selected_solution.score
matched_scans.append(scan)
spectrum_match_ref = max(glycopeptide.spectrum_matches,
key=lambda x: x.score)
scan_id = spectrum_match_ref.scan.scan_id
scan = self.scan_loader.get_scan_by_id(scan_id)
match = CoverageWeightedBinomialScorer.evaluate(
scan,
glycopeptide.structure.convert(),
error_tolerance=self.analysis.
parameters["fragment_error_tolerance"])
specmatch_artist = SpectrumMatchAnnotator(match, ax=figax())
specmatch_artist.draw(fontsize=10, pretty=True)
annotated_match_ax = specmatch_artist.ax
annotated_match_ax.set_title("%s\n" % (scan.id, ), fontsize=18)
annotated_match_ax.set_ylabel(annotated_match_ax.get_ylabel(),
fontsize=16)
annotated_match_ax.set_xlabel(annotated_match_ax.get_xlabel(),
fontsize=16)
sequence_logo_plot = glycopeptide_match_logo(match, ax=figax())
xlim = list(sequence_logo_plot.get_xlim())
xlim[0] += 1
sequence_logo_plot.set_xlim(xlim[0], xlim[1])
spectrum_plot = png_plot(annotated_match_ax,
svg_width="100%",
bbox_inches='tight',
height=3 * 1.5,
width=8 * 1.5,
img_width="100%",
patchless=True)
logo_plot = png_plot(sequence_logo_plot,
svg_width="100%",
img_width="100%",
xml_transform=scale_fix_xml_transform,
bbox_inches='tight',
height=2,
width=6 * 1.5,
patchless=True)
return dict(spectrum_plot=spectrum_plot,
logo_plot=logo_plot,
precursor_mass_accuracy=match.precursor_mass_accuracy(),
spectrum_match=match)
def track_entry(self, glycopeptide):
self._glycopeptide_counter += 1
if self._glycopeptide_counter % 15 == 0:
self.status_update(" ... %d glycopeptides handled" %
(self._glycopeptide_counter, ))
return self._glycopeptide_counter
def make_template_stream(self):
template_obj = self.env.get_template("overview.templ")
ads = serialize.AnalysisDeserializer(
self.database_connection._original_connection,
analysis_id=self.analysis_id)
hypothesis = ads.analysis.hypothesis
sample_run = ads.analysis.sample_run
template_stream = template_obj.stream(
analysis=ads.analysis,
hypothesis=hypothesis,
sample_run=sample_run,
protein_index=self.protein_index,
glycoprotein_iterator=self.iterglycoproteins(),
renderer=self,
)
return template_stream
