Exemplo n.º 1
0
def preprocess_stmts(stmts, data_genes):
    # Filter the INDRA Statements to be put into the model
    stmts = ac.filter_mutation_status(stmts,
                                      {'BRAF': [('V', '600', 'E')]}, ['PTEN'])
    stmts = ac.filter_by_type(stmts, Complex, invert=True)
    stmts = ac.filter_direct(stmts)
    stmts = ac.filter_belief(stmts, 0.95)
    stmts = ac.filter_top_level(stmts)
    stmts = ac.filter_gene_list(stmts, data_genes, 'all')
    stmts = ac.filter_enzyme_kinase(stmts)
    stmts = ac.filter_mod_nokinase(stmts)
    stmts = ac.filter_transcription_factor(stmts)
    # Simplify activity types
    ml = MechLinker(stmts)
    ml.gather_explicit_activities()
    ml.reduce_activities()
    ml.gather_modifications()
    ml.reduce_modifications()
    af_stmts = ac.filter_by_type(ml.statements, ActiveForm)
    non_af_stmts = ac.filter_by_type(ml.statements, ActiveForm, invert=True)
    af_stmts = ac.run_preassembly(af_stmts)
    stmts = af_stmts + non_af_stmts
    # Replace activations when possible
    ml = MechLinker(stmts)
    ml.gather_explicit_activities()
    ml.replace_activations()
    # Require active forms
    ml.require_active_forms()
    num_stmts = len(ml.statements)
    while True:
        # Remove inconsequential PTMs
        ml.statements = ac.filter_inconsequential_mods(ml.statements,
                                                       get_mod_whitelist())
        ml.statements = ac.filter_inconsequential_acts(ml.statements,
                                                       get_mod_whitelist())
        if num_stmts <= len(ml.statements):
            break
        num_stmts = len(ml.statements)
    stmts = ml.statements
    return stmts
Exemplo n.º 2
0
def assemble_pysb(stmts, data_genes, contextualize=False):
    # Filter the INDRA Statements to be put into the model
    stmts = ac.filter_by_type(stmts, Complex, invert=True)
    stmts = ac.filter_direct(stmts)
    stmts = ac.filter_belief(stmts, 0.95)
    stmts = ac.filter_top_level(stmts)
    # Strip the extraneous supports/supported by here
    strip_supports(stmts)
    stmts = ac.filter_gene_list(stmts, data_genes, 'all')
    stmts = ac.filter_enzyme_kinase(stmts)
    stmts = ac.filter_mod_nokinase(stmts)
    stmts = ac.filter_transcription_factor(stmts)
    # Simplify activity types
    ml = MechLinker(stmts)
    ml.gather_explicit_activities()
    ml.reduce_activities()
    ml.gather_modifications()
    ml.reduce_modifications()
    stmts = normalize_active_forms(ml.statements)
    # Replace activations when possible
    ml = MechLinker(stmts)
    ml.gather_explicit_activities()
    ml.replace_activations()
    # Require active forms
    ml.require_active_forms()
    num_stmts = len(ml.statements)
    while True:
        # Remove inconsequential PTMs
        ml.statements = ac.filter_inconsequential_mods(ml.statements,
                                                       get_mod_whitelist())
        ml.statements = ac.filter_inconsequential_acts(ml.statements,
                                                       get_mod_whitelist())
        if num_stmts <= len(ml.statements):
            break
        num_stmts = len(ml.statements)
    stmts = ml.statements
    # Save the Statements here
    ac.dump_statements(stmts, prefixed_pkl('pysb_stmts'))


    # Add drug target Statements
    drug_target_stmts = get_drug_target_statements()
    stmts += drug_target_stmts

    # Just generate the generic model
    pa = PysbAssembler()
    pa.add_statements(stmts)
    model = pa.make_model()
    with open(prefixed_pkl('pysb_model'), 'wb') as f:
        pickle.dump(model, f)

    # Run this extra part only if contextualize is set to True
    if not contextualize:
        return

    cell_lines_no_data = ['COLO858', 'K2', 'MMACSF', 'MZ7MEL', 'WM1552C']
    for cell_line in cell_lines:
        if cell_line not in cell_lines_no_data:
            stmtsc = contextualize_stmts(stmts, cell_line, data_genes)
        else:
            stmtsc = stmts
        pa = PysbAssembler()
        pa.add_statements(stmtsc)
        model = pa.make_model()
        if cell_line not in cell_lines_no_data:
            contextualize_model(model, cell_line, data_genes)
        ac.dump_statements(stmtsc, prefixed_pkl('pysb_stmts_%s' % cell_line))
        with open(prefixed_pkl('pysb_model_%s' % cell_line), 'wb') as f:
            pickle.dump(model, f)