Beispiel #1
0
def extract_ss(input_path, suffix, tree_file):
    tree = Tree(tree_file, format=1)
    leaves_set = set(tree.get_leaf_names())
    msa = SeqGroup(input_path.alignment, "fasta")
    path_argv = [input_path._version, input_path._dataset + suffix]
    output_path = common.Paths(path_argv, 0)
    data_versioning.setup_new_dataset(output_path)
    new_msa = SeqGroup()
    for entry in msa.iter_entries():
        label = entry[0]
        sequence = entry[1]
        if (label in leaves_set):
            new_msa.set_seq(label, sequence)
    open(output_path.alignment, "w").write(new_msa.write(format="fasta"))
    shutil.copy(input_path.duplicates_json, output_path.duplicates_json)
    shutil.copy(input_path.outgroups_file, output_path.outgroups_file)
Beispiel #2
0
def extract_ss(input_path, suffix, tree_file):
    print(
        "Extracting alignment generated with the support selection tree thinning technique..."
    )
    tree = Tree(tree_file, format=1)
    leaves_set = set(tree.get_leaf_names())
    msa = SeqGroup(input_path.alignment, "fasta")
    path_argv = [input_path._version, input_path._dataset + suffix]
    output_path = common.Paths(path_argv, 0)
    data_versioning.setup_new_dataset(output_path)
    new_msa = SeqGroup()
    for entry in msa.iter_entries():
        label = entry[0]
        sequence = entry[1]
        if (label in leaves_set):
            new_msa.set_seq(label, sequence)
    open(output_path.alignment, "w").write(new_msa.write(format="fasta"))
    shutil.copy(input_path.duplicates_json, output_path.duplicates_json)
    shutil.copy(input_path.outgroups_file, output_path.outgroups_file)
    print("New version of the snapshot: " + output_path.path)
Beispiel #3
0
    for name, seq, _ in alg_aa:
        try:
            cdna = F.id2seq[F.name2id[name]]
        except KeyError:
            print "cdna for %s not found" % name
            continue
        cdna_aln = ""
        for pos in seq:
            if pos != "-":
                cdna_aln += cdna[:3]
                cdna = cdna[3:]
            else:
                cdna_aln += "---"
        # Last the stop codon
        cdna_aln += cdna[:3]
        alg_dna.set_seq(name, cdna_aln)
    print "Input protein alignment contains %s aa sequences" % len(alg_aa)
    print "Output cdna alignment contains %s cdna sequences" % len(alg_dna)
    print 
    alg_dna.write(outfile=infile.replace(".clustalo", ".clustalo.cdna.aln"))









                
Beispiel #4
0
F = parser.fasta.read_fasta(sys.argv[2])

for infile in infiles:
    print infile
    if os.stat(infile).st_size == 0:
        continue
    alg_aa = SeqGroup(infile)
    alg_dna = SeqGroup()

    for name, seq, _ in alg_aa:
        try:
            cdna = F.id2seq[F.name2id[name]]
        except KeyError:
            print "cdna for %s not found" % name
            continue
        cdna_aln = ""
        for pos in seq:
            if pos != "-":
                cdna_aln += cdna[:3]
                cdna = cdna[3:]
            else:
                cdna_aln += "---"
        # Last the stop codon
        cdna_aln += cdna[:3]
        alg_dna.set_seq(name, cdna_aln)
    print "Input protein alignment contains %s aa sequences" % len(alg_aa)
    print "Output cdna alignment contains %s cdna sequences" % len(alg_dna)
    print
    alg_dna.write(outfile=infile.replace(".clustalo", ".clustalo.cdna.aln"))