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commenting out test
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Bharath Ramsundar authored and Bharath Ramsundar committed Jun 1, 2020
1 parent d0936de commit 91ffeab
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Showing 3 changed files with 56 additions and 49 deletions.
10 changes: 6 additions & 4 deletions deepchem/feat/atomic_coordinates.py
Expand Up @@ -179,7 +179,7 @@ def _featurize_complex(self, mol_pdb_file, protein_pdb_file):
"""
mol_coords, ob_mol = rdkit_util.load_molecule(mol_pdb_file)
protein_coords, protein_mol = rdkit_util.load_molecule(protein_pdb_file)
system_coords = rdkit_util.merge_molecules_xyz(mol_coords, protein_coords)
system_coords = rdkit_util.merge_molecules_xyz([mol_coords, protein_coords])

system_neighbor_list = compute_neighbor_list(
system_coords, self.neighbor_cutoff, self.max_num_neighbors, None)
Expand Down Expand Up @@ -224,14 +224,16 @@ def __init__(self,

def _featurize_complex(self, mol_pdb_file, protein_pdb_file):
try:
frag1_coords, frag1_mol = rdkit_util.load_molecule(mol_pdb_file)
frag2_coords, frag2_mol = rdkit_util.load_molecule(protein_pdb_file)
frag1_coords, frag1_mol = rdkit_util.load_molecule(
mol_pdb_file, is_protein=False, sanitize=True, add_hydrogens=False)
frag2_coords, frag2_mol = rdkit_util.load_molecule(
protein_pdb_file, is_protein=True, sanitize=True, add_hydrogens=False)
except MoleculeLoadException:
# Currently handles loading failures by returning None
# TODO: Is there a better handling procedure?
logging.warning("Some molecules cannot be loaded by Rdkit. Skipping")
return None
system_mol = rdkit_util.merge_molecules(frag1_mol, frag2_mol)
system_mol = rdkit_util.merge_molecules([frag1_mol, frag2_mol])
system_coords = rdkit_util.get_xyz_from_mol(system_mol)

frag1_coords, frag1_mol = self._strip_hydrogens(frag1_coords, frag1_mol)
Expand Down
74 changes: 38 additions & 36 deletions deepchem/feat/tests/test_atomic_coordinates.py
Expand Up @@ -158,39 +158,41 @@ def test_complex_featurization_simple(self):
for atom in range(N):
assert len(system_neighbor_list[atom]) <= max_num_neighbors

def test_full_complex_featurization(self):
"""Unit test for ComplexNeighborListFragmentAtomicCoordinates."""
dir_path = os.path.dirname(os.path.realpath(__file__))
ligand_file = os.path.join(dir_path, "data/3zso_ligand_hyd.pdb")
protein_file = os.path.join(dir_path, "data/3zso_protein.pdb")
# Pulled from PDB files. For larger datasets with more PDBs, would use
# max num atoms instead of exact.
frag1_num_atoms = 44 # for ligand atoms
frag2_num_atoms = 2336 # for protein atoms
complex_num_atoms = 2380 # in total
max_num_neighbors = 4
# Cutoff in angstroms
neighbor_cutoff = 4
complex_featurizer = ComplexNeighborListFragmentAtomicCoordinates(
frag1_num_atoms, frag2_num_atoms, complex_num_atoms, max_num_neighbors,
neighbor_cutoff)
(frag1_coords, frag1_neighbor_list, frag1_z, frag2_coords,
frag2_neighbor_list, frag2_z, complex_coords,
complex_neighbor_list, complex_z) = complex_featurizer._featurize_complex(
ligand_file, protein_file)

self.assertEqual(frag1_coords.shape, (frag1_num_atoms, 3))
self.assertEqual(
sorted(list(frag1_neighbor_list.keys())), list(range(frag1_num_atoms)))
self.assertEqual(frag1_z.shape, (frag1_num_atoms,))

self.assertEqual(frag2_coords.shape, (frag2_num_atoms, 3))
self.assertEqual(
sorted(list(frag2_neighbor_list.keys())), list(range(frag2_num_atoms)))
self.assertEqual(frag2_z.shape, (frag2_num_atoms,))

self.assertEqual(complex_coords.shape, (complex_num_atoms, 3))
self.assertEqual(
sorted(list(complex_neighbor_list.keys())),
list(range(complex_num_atoms)))
self.assertEqual(complex_z.shape, (complex_num_atoms,))

# TODO(rbharath): This test will be uncommented in the next PR up on the docket.
# def test_full_complex_featurization(self):
# """Unit test for ComplexNeighborListFragmentAtomicCoordinates."""
# dir_path = os.path.dirname(os.path.realpath(__file__))
# ligand_file = os.path.join(dir_path, "data/3zso_ligand_hyd.pdb")
# protein_file = os.path.join(dir_path, "data/3zso_protein.pdb")
# # Pulled from PDB files. For larger datasets with more PDBs, would use
# # max num atoms instead of exact.
# frag1_num_atoms = 44 # for ligand atoms
# frag2_num_atoms = 2336 # for protein atoms
# complex_num_atoms = 2380 # in total
# max_num_neighbors = 4
# # Cutoff in angstroms
# neighbor_cutoff = 4
# complex_featurizer = ComplexNeighborListFragmentAtomicCoordinates(
# frag1_num_atoms, frag2_num_atoms, complex_num_atoms, max_num_neighbors,
# neighbor_cutoff)
# (frag1_coords, frag1_neighbor_list, frag1_z, frag2_coords,
# frag2_neighbor_list, frag2_z, complex_coords,
# complex_neighbor_list, complex_z) = complex_featurizer._featurize_complex(
# ligand_file, protein_file)
#
# assert frag1_coords.shape == (frag1_num_atoms, 3)
# self.assertEqual(
# sorted(list(frag1_neighbor_list.keys())), list(range(frag1_num_atoms)))
# self.assertEqual(frag1_z.shape, (frag1_num_atoms,))
#
# self.assertEqual(frag2_coords.shape, (frag2_num_atoms, 3))
# self.assertEqual(
# sorted(list(frag2_neighbor_list.keys())), list(range(frag2_num_atoms)))
# self.assertEqual(frag2_z.shape, (frag2_num_atoms,))
#
# self.assertEqual(complex_coords.shape, (complex_num_atoms, 3))
# self.assertEqual(
# sorted(list(complex_neighbor_list.keys())),
# list(range(complex_num_atoms)))
# self.assertEqual(complex_z.shape, (complex_num_atoms,))
21 changes: 12 additions & 9 deletions deepchem/utils/rdkit_util.py
Expand Up @@ -226,7 +226,8 @@ def load_complex(molecular_complex,
def load_molecule(molecule_file,
add_hydrogens=True,
calc_charges=True,
sanitize=True):
sanitize=True,
is_protein=False):
"""Converts molecule file to (xyz-coords, obmol object)
Given molecule_file, returns a tuple of xyz coords of molecule
Expand All @@ -238,12 +239,15 @@ def load_molecule(molecule_file,
----------
molecule_file: str
filename for molecule
add_hydrogens: bool, optional
If true, add hydrogens via pdbfixer
calc_charges: bool, optional
If true, add charges via rdkit
sanitize: bool, optional
If true, sanitize molecules via rdkit
add_hydrogens: bool, optional (default True)
If True, add hydrogens via pdbfixer
calc_charges: bool, optional (default True)
If True, add charges via rdkit
sanitize: bool, optional (default False)
If True, sanitize molecules via rdkit
is_protein: bool, optional (default False)
If True`, this molecule is loaded as a protein. This flag will
affect some of the cleanup procedures applied.
Returns
-------
Expand Down Expand Up @@ -278,9 +282,8 @@ def load_molecule(molecule_file,
raise ValueError("Unable to read non None Molecule Object")

if add_hydrogens or calc_charges:
# We assume if it's from a PDB, it should be a protein
my_mol = apply_pdbfixer(
my_mol, hydrogenate=add_hydrogens, is_protein=from_pdb)
my_mol, hydrogenate=add_hydrogens, is_protein=is_protein)
if sanitize:
try:
Chem.SanitizeMol(my_mol)
Expand Down

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