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1270 | def align_helices(models: Sequence[ContainsEntities]) -> list[PoseJob] | list:
"""
Args:
models: The Structure instances to be used in docking
Returns:
The PoseJob instances created as a result of fusion
"""
align_time_start = time.time()
# Retrieve symjob.JobResources for all flags
job = symjob.job_resources_factory.get()
sym_entry: SymEntry = job.sym_entry
"""The SymmetryEntry object describing the material"""
# Initialize incoming Structures
if len(models) != 2:
raise ValueError(
f"Can't perform {align_helices.__name__} with {len(models)} models. Only 2 are allowed")
model1: Pose
model2: Model
model1, model2 = models
if job.alignment_length:
alignment_length = job.alignment_length
else:
alignment_length = default_alignment_length = 5
project = f'Alignment_{model1.name}-{model2.name}'
project_dir = os.path.join(job.projects, project)
putils.make_path(project_dir)
protocol_name = 'helix_align'
# fusion_chain_id = 'A'
pose_jobs = []
opposite_termini = {'n': 'c', 'c': 'n'}
# Limit the calculation to a particular piece of the model
if job.target_chain is None: # Use the whole model
selected_models1 = model1.entities
remaining_entities1 = [entity for entity in model1.entities]
else:
selected_chain1 = model1.get_chain(job.target_chain)
if not selected_chain1:
raise ValueError(
f"The provided {flags.format_args(flags.target_chain_args)} '{job.target_chain}' wasn't found in the "
f"target model. Available chains = {', '.join(model1.chain_ids)}")
# Todo make selection based off Entity
entity1 = model1.match_entity_by_seq(selected_chain1.sequence)
# Place a None token where the selected entity should be so that the SymEntry is accurate upon fusion
remaining_entities1 = [entity if entity != entity1 else None for entity in model1.entities]
selected_models1 = [entity1]
if job.output_trajectory:
if sym_entry.unit_cell:
logger.warning('No unit cell dimensions applicable to the trajectory file')
model2_entities_after_fusion = model2.number_of_entities - 1
# Create the corresponding SymEntry from the original SymEntry and the fusion
if sym_entry:
model1.set_symmetry(sym_entry=sym_entry)
# Todo
# Currently only C1 can be fused. Remove hard coding when changed
# Use the model1.sym_entry as this could be crystalline
sym_entry_chimera = model1.sym_entry
for _ in range(model2_entities_after_fusion):
sym_entry_chimera.append_group('C1')
logger.debug(f'sym_entry_chimera: {repr(sym_entry_chimera)}, '
f'specification {sym_entry_chimera.specification}')
else:
# Todo this can't be none as .groups[] is indexed later...
sym_entry_chimera = None
# Create the entity_transformations for model1
model1_entity_transformations = []
for transformation, set_mat_number in zip(model1.entity_transformations,
sym_entry.setting_matrices_numbers):
if transformation:
if transformation['translation'] is None:
internal_tx_x = internal_tx_y = internal_tx_z = None
else:
internal_tx_x, internal_tx_y, internal_tx_z = transformation['translation']
if transformation['translation2'] is None:
external_tx_x = external_tx_y = external_tx_z = None
else:
external_tx_x, external_tx_y, external_tx_z = transformation['translation2']
entity_transform = dict(
# rotation_x=rotation_degrees_x,
# rotation_y=rotation_degrees_y,
# rotation_z=rotation_degrees_z,
internal_translation_z=internal_tx_z,
setting_matrix=set_mat_number,
external_translation_x=external_tx_x,
external_translation_y=external_tx_y,
external_translation_z=external_tx_z)
else:
entity_transform = {}
model1_entity_transformations.append(entity_transform)
model2_entity_transformations = [{} for _ in range(model2_entities_after_fusion)]
_pose_count = count(1)
def _output_pose(name: str) -> None:
"""Handle output of the identified pose
Args:
name: The name to associate with this job
Returns:
None
"""
# Output the pose as a PoseJob
# name = f'{termini}-term{helix_start_index + 1}'
logger.debug(f'Creating PoseJob')
pose_job = PoseJob.from_name(name, project=project, protocol=protocol_name, sym_entry=sym_entry_chimera)
# if job.output:
if job.output_fragments:
pose.find_and_split_interface()
# Query fragments
pose.generate_interface_fragments()
if job.output_trajectory:
available_chain_ids = chain_id_generator()
def _exhaust_n_chain_ids(n: int) -> str:
for _ in range(n - 1):
next(available_chain_ids)
return next(available_chain_ids)
# Write trajectory
if sym_entry.unit_cell:
logger.warning('No unit cell dimensions used to the trajectory file.')
with open(os.path.join(project_dir, 'trajectory_oligomeric_models.pdb'), 'a') as f_traj:
# pose.write(file_handle=f_traj, assembly=True)
f_traj.write('{:9s}{:>4d}\n'.format('MODEL', next(_pose_count)))
model_specific_chain_id = next(available_chain_ids)
for entity in pose.entities:
starting_chain_id = entity.chain_id
entity.chain_id = model_specific_chain_id
entity.write(file_handle=f_traj, assembly=True)
entity.chain_id = starting_chain_id
model_specific_chain_id = _exhaust_n_chain_ids(entity.number_of_symmetry_mates)
f_traj.write(f'ENDMDL\n')
# # Set the ASU, then write to a file
# pose.set_contacting_asu()
try: # Remove existing cryst_record
del pose._cryst_record
except AttributeError:
pass
try:
pose.uc_dimensions = model1.uc_dimensions
except AttributeError: # model1 isn't a crystalline symmetry
pass
# Todo the number of entities and the number of transformations could be different
# entity_transforms = []
for entity, transform in zip(pose.entities, model1_entity_transformations + model2_entity_transformations):
transformation = sql.EntityTransform(**transform)
# entity_transforms.append(transformation)
pose_job.entity_data.append(sql.EntityData(
meta=entity.metadata,
metrics=entity.metrics,
transform=transformation)
)
# session.add_all(entity_transforms) # + entity_data)
# # Need to generate the EntityData.id
# session.flush()
pose_job.pose = pose
# pose_job.calculate_pose_design_metrics(session)
putils.make_path(pose_job.pose_directory)
pose_job.output_pose()
pose_job.source_path = pose_job.pose_path
pose_job.pose = None
if job.output_to_directory:
logger.info(f'Alignment output -> {pose_job.output_pose_path}')
else:
logger.info(f'Alignment output -> {pose_job.pose_path}')
pose_jobs.append(pose_job)
# Set parameters as null
observed_protein_data = {}
# Start the alignment search
for selected_idx1, entity1 in enumerate(selected_models1):
logger.info(f'Target component {entity1.name}')
if all(remaining_entities1):
additional_entities1 = remaining_entities1.copy()
additional_entities1[selected_idx1] = None
else:
additional_entities1 = remaining_entities1
# Solve for target/aligned residue features
half_entity1_length = entity1.number_of_residues / 2
# Check target_end first as the secondary_structure1 slice is dependent on lengths
if job.target_end:
target_end_residue = entity1.residue(job.target_end)
if target_end_residue is None:
raise DesignError(
f"Couldn't find the {flags.format_args(flags.target_end_args)} residue number {job.target_end} "
f"in the {entity1.__class__.__name__}, {entity1.name}")
target_end_index_ = target_end_residue.index
# See if the specified aligned_start/aligned_end lie in this termini orientation
if target_end_index_ < half_entity1_length:
desired_end_target_termini = 'n'
else: # Closer to c-termini
desired_end_target_termini = 'c'
else:
desired_end_target_termini = target_end_index_ = None
if job.target_start:
target_start_residue = entity1.residue(job.target_start)
if target_start_residue is None:
raise DesignError(
f"Couldn't find the {flags.format_args(flags.target_start_args)} residue number "
f"{job.target_start} in the {entity1.__class__.__name__}, {entity1.name}")
target_start_index_ = target_start_residue.index
# See if the specified aligned_start/aligned_end lie in this termini orientation
if target_start_index_ < half_entity1_length:
desired_start_target_termini = 'n'
else: # Closer to c-termini
desired_start_target_termini = 'c'
else:
desired_start_target_termini = target_start_index_ = None
# Set up desired_aligned_termini
if desired_start_target_termini:
if desired_end_target_termini:
if desired_start_target_termini != desired_end_target_termini:
raise DesignError(
f"Found different termini specified for addition by your flags "
f"{flags.format_args(flags.aligned_start_args)} ({desired_start_target_termini}-termini) "
f"and{flags.format_args(flags.aligned_end_args)} ({desired_end_target_termini}-termini)")
termini = desired_start_target_termini
elif desired_end_target_termini:
termini = desired_end_target_termini
else:
termini = None
if job.target_termini:
desired_termini = job.target_termini.copy()
if termini and termini not in desired_termini:
if desired_start_target_termini:
flag = flags.target_start_args
arg = job.target_start
else:
flag = flags.target_end_args
arg = job.target_end
raise DesignError(
f"The {flags.format_args(flags.target_termini_args)} '{job.target_termini}' isn't compatible with "
f"your flag {flags.format_args(flag)} '{arg}' which would specify the {termini}-termini")
elif termini:
desired_termini = [termini]
else: # None specified, try all
desired_termini = ['n', 'c']
if job.trim_termini:
# Remove any unstructured termini from the Entity to enable most successful fusion
logger.info('Trimming unstructured termini to check for available helices')
entity1_copy = entity1.copy()
entity1_copy.delete_termini('unstructured')
else:
entity1_copy = entity1
# Check for helical termini on the target building block and remove those that are not available
for termini in reversed(desired_termini):
if not entity1_copy.is_termini_helical(termini, window=alignment_length):
logger.error(f"The specified termini '{termini}' isn't helical")
desired_termini.remove(termini)
if not desired_termini:
logger.info(f'Target component {entity1.name} has no termini remaining')
continue
if job.aligned_chain is None: # Use the whole model
selected_models2 = model2.entities
remaining_entities2 = [entity for entity in model2.entities]
else:
selected_chain2 = model2.get_chain(job.aligned_chain)
if not selected_chain2:
raise ValueError(
f"The provided {flags.format_args(flags.aligned_chain_args)} '{job.aligned_chain}' wasn't found in "
f"the aligned model. Available chains = {', '.join(model2.chain_ids)}")
# Todo make selection based off Entity
entity2 = model2.match_entity_by_seq(selected_chain2.sequence)
remaining_entities2 = [entity for entity in model2.entities if entity != entity2]
selected_models2 = [entity2]
for selected_idx2, entity2 in enumerate(selected_models2):
logger.info(f'Aligned component {entity2.name}')
# Set variables for the additional entities
if len(remaining_entities2) == model2.number_of_entities:
additional_entities2 = remaining_entities2.copy()
additional_entities2.pop(selected_idx2)
else:
additional_entities2 = remaining_entities2
additional_entity_ids2 = [entity.name for entity in additional_entities2]
# Throw away chain ids that are in use by model1 to increment additional model2 entities to correct chain_id
available_chain_ids = chain_id_generator()
chain_id = next(available_chain_ids)
while chain_id in model1.chain_ids:
chain_id = next(available_chain_ids)
for add_ent2 in additional_entities2:
add_ent2.chain_id = chain_id
chain_id = next(available_chain_ids)
half_entity2_length = entity2.number_of_residues / 2
if job.aligned_start:
aligned_start_residue = entity2.residue(job.aligned_start)
if aligned_start_residue is None:
raise DesignError(
f"Couldn't find the {flags.format_args(flags.aligned_start_args)} residue number "
f"{job.aligned_start} in the {entity2.__class__.__name__}, {entity2.name}")
aligned_start_index_ = aligned_start_residue.index
# See if the specified aligned_start/aligned_end lie in this termini orientation
if aligned_start_index_ < half_entity2_length:
desired_start_aligned_termini = 'n'
else: # Closer to c-termini
desired_start_aligned_termini = 'c'
else:
desired_start_aligned_termini = aligned_start_index_ = None
if job.aligned_end:
aligned_end_residue = entity2.residue(job.aligned_end)
if aligned_end_residue is None:
raise DesignError(
f"Couldn't find the {flags.format_args(flags.aligned_end_args)} residue number {job.aligned_end} in "
f"the {entity2.__class__.__name__}, {entity2.name}")
aligned_end_index_ = aligned_end_residue.index
# See if the specified aligned_start/aligned_end lie in this termini orientation
if aligned_end_index_ < half_entity2_length:
desired_end_aligned_termini = 'n'
else: # Closer to c-termini
desired_end_aligned_termini = 'c'
else:
desired_end_aligned_termini = aligned_end_index_ = None
# Set the desired_aligned_termini
if desired_start_aligned_termini:
if desired_end_aligned_termini:
if desired_start_aligned_termini != desired_end_aligned_termini:
raise DesignError(
f"Found different termini specified for addition by your flags "
f"{flags.format_args(flags.aligned_start_args)} ({desired_start_aligned_termini}-termini) and"
f"{flags.format_args(flags.aligned_end_args)} ({desired_end_aligned_termini}-termini)")
desired_aligned_termini = desired_start_aligned_termini
elif desired_end_aligned_termini:
desired_aligned_termini = desired_end_aligned_termini
else:
desired_aligned_termini = None
if job.trim_termini:
# Remove any unstructured termini from the Entity to enable most successful fusion
logger.info('Trimming unstructured termini to check for available helices')
entity2_copy = entity2.copy()
entity2_copy.delete_termini('to_helices')
else:
entity2_copy = entity2
termini_to_align = []
for termini in desired_termini:
# Check if the desired termini in the aligned structure is available
align_termini = opposite_termini[termini]
if entity2_copy.is_termini_helical(align_termini, window=alignment_length):
if desired_aligned_termini and align_termini == desired_aligned_termini:
# This is the correct termini
termini_to_align.append(termini)
break # As only one termini can be specified and this was it
else:
termini_to_align.append(termini)
else:
logger.info(f"{align_helices.__name__} isn't possible for target {termini} to aligned "
f'{align_termini} since {entity2.name} is missing a helical {align_termini}-termini')
if not termini_to_align:
logger.info(f'Target component {entity2.name} has no termini remaining')
for termini in termini_to_align:
align_termini = opposite_termini[termini]
entity1_copy = entity1.copy()
entity2_copy = entity2.copy()
if job.trim_termini:
# Remove any unstructured termini from the Entity to enable most successful fusion
entity1_copy.delete_termini('to_helices', termini=termini)
entity2_copy.delete_termini('to_helices', termini=align_termini)
# entity.delete_unstructured_termini()
# entity.delete_unstructured_termini()
logger.info(f'Starting {entity1.name} {termini}-termini')
# Get the target_start_index the length_of_target_helix
logger.debug(f'Checking {termini}-termini for helices:\n\t{entity1_copy.secondary_structure}')
target_start_index, length_of_target_helix = \
get_terminal_helix_start_index_and_length(entity1_copy.secondary_structure, termini,
start_index=target_start_index_,
end_index=target_end_index_)
logger.debug(f'Found {termini}-termini start index {target_start_index} and '
f'length {length_of_target_helix}')
if job.extension_length:
extension_length = job.extension_length
# Add the extension length to the residue window if an ideal helix was added
# length_of_helix_model = length_of_target_helix + extension_length
logger.info(f'Adding {extension_length} residues to the target helix. This will result in a maximum'
f' extension of {extension_length - alignment_length - 1 } residues')
else:
extension_length = 0
truncated_entity1, helix_model = prepare_alignment_motif(
entity1_copy, target_start_index, length_of_target_helix,
termini=termini, extension_length=extension_length, alignment_length=alignment_length)
# Rename the models to enable fusion
chain_id = truncated_entity1.chain_id
helix_model.chain_id = chain_id
entity2.chain_id = chain_id
length_of_helix_model = helix_model.number_of_residues
logger.debug(f'length_of_helix_model: {length_of_helix_model}')
max_target_helix_length = length_of_helix_model - alignment_length
logger.debug(f'Number of helical positions on target: {max_target_helix_length}')
target_start_indices_sequence = range(max_target_helix_length)
# Get the aligned_start_index and length_of_aligned_helix
logger.debug(f'Checking {align_termini}-termini for helices:\n\t{entity2_copy.secondary_structure}')
aligned_start_index, length_of_aligned_helix = \
get_terminal_helix_start_index_and_length(entity2_copy.secondary_structure, align_termini,
start_index=aligned_start_index_,
end_index=aligned_end_index_)
logger.debug(f'Found {align_termini}-termini start index {aligned_start_index} and '
f'length {length_of_aligned_helix}')
# Scan along the aligned helix length
logger.debug(f'length_of_aligned_helix: {length_of_aligned_helix}')
logger.debug(f'alignment_length: {alignment_length}')
aligned_length = length_of_aligned_helix + 1 - alignment_length
if aligned_length < 1:
logger.info(
f"Aligned component {entity2.name} {align_termini}-termini isn't long enough for alignment")
continue
sample_all_alignments = False # Debugging True # First draft
if sample_all_alignments:
align_iteration_direction = iter
target_iteration_direction = iter
target_start_iterator = target_start_indices_sequence
else:
# Todo
# targeted method which searches only possible
# Need to work out the align and sample function to wrap each index pair inside to clean for loops
if termini == 'n':
align_iteration_direction = iter
target_iteration_direction = reversed
target_pause_index_during_aligned_loop = max_target_helix_length - 1
else: # termini == 'c'
align_iteration_direction = reversed
target_iteration_direction = iter
target_pause_index_during_aligned_loop = 0
target_start_iterator = [target_pause_index_during_aligned_loop]
aligned_count = count(1)
aligned_range_end = aligned_start_index + aligned_length
align_start_indices_sequence = range(aligned_start_index, aligned_range_end)
for aligned_start_index in align_iteration_direction(align_start_indices_sequence):
aligned_idx = next(aligned_count)
# logger.debug(f'aligned_idx: {aligned_idx}')
logger.debug(f'aligned_start_index: {aligned_start_index}')
# logger.debug(f'number of residues: {entity2_copy.number_of_residues}')
# # Todo use full model_helix mode
# truncated_entity2, helix_model2 = prepare_alignment_motif(
# entity2_copy, aligned_start_index, alignment_length, termini=align_termini)
# # Todo? , extend_helix=extension_length)
# # Rename the models to enable fusion
# truncated_entity2.chain_id = chain_id
aligned_end_index = aligned_start_index + alignment_length
# Calculate the entity2 indices to delete after alignment position is found
if align_termini == 'c':
delete_indices2 = list(range(aligned_end_index, entity2_copy.c_terminal_residue.index + 1))
else:
delete_indices2 = list(range(entity2_copy.n_terminal_residue.index, aligned_start_index))
# Get aligned coords
coords2 = entity2_copy.get_coords_subset(
indices=list(range(aligned_start_index, aligned_end_index)),
dtype='backbone')
# Todo
# For every iteration of the aligned_start_index, perform the alignment procedure
# Need to perform short target loops during aligned loop or make alignment procedure a function...
if aligned_idx == aligned_length:
# The maximum number of aligned_start_index have been reached, iterate over the target now
target_start_iterator = target_iteration_direction(target_start_indices_sequence)
# else:
# target_start_iterator = []
# # Scan along the target helix length
# # helix_start_index = 0
# max_target_helix_length = length_of_helix_model - alignment_length
# logger.debug(f'Number of helical positions on target: {max_target_helix_length}')
# target_start_indices_sequence = range(max_target_helix_length)
# for helix_start_index in target_iteration_direction(target_start_indices_sequence):
#
for helix_start_index in target_start_iterator:
logger.debug(f'helix_start_index: {helix_start_index}')
helix_end_index = helix_start_index + alignment_length
# if helix_end_index > maximum_helix_alignment_length:
# break # This isn't allowed
sampling_index = f'{aligned_idx}/{aligned_length}, ' \
f'{helix_start_index + 1}/{max_target_helix_length}'
# Get target coords
coords1 = helix_model.get_coords_subset(
indices=list(range(helix_start_index, helix_end_index)),
dtype='backbone')
try:
# # Use helix_model2 start index = 0 as helix_model2 is always truncated
# # Use transformed_entity2 mode
# rmsd, rot, tx = align_model_to_helix(
# entity2_copy, aligned_start_index, helix_model, helix_start_index, alignment_length)
rmsd, rot, tx = superposition3d(coords1, coords2)
# # Use full model_helix mode
# rmsd, rot, tx = align_model_to_helix(
# helix_model2, 0, helix_model, helix_start_index, alignment_length)
except ValueError as error: # The lengths of the coords aren't equal, report and proceed
logger.warning(str(error))
continue
else:
logger.info(f'{entity1.name} {termini}-termini to {entity2.name} {align_termini}-termini '
f'alignment {sampling_index} has RMSD of {rmsd:.4f}')
# Transform and copy to facilitate delete
transformed_entity2 = entity2_copy.get_transformed_copy(rotation=rot, translation=tx)
# Delete overhanging residues
transformed_entity2.delete_residues(indices=delete_indices2)
# Order the models, slice the helix for overlapped segments
if termini == 'n':
ordered_entity1 = transformed_entity2
ordered_entity2 = truncated_entity1
helix_model_start_index = helix_end_index
helix_model_range = range(helix_model_start_index, length_of_helix_model)
# Get Residue instances that mark the boundary of the fusion
start_residue1 = transformed_entity2.n_terminal_residue
end_residue1 = transformed_entity2.c_terminal_residue # residues[aligned_end_index - 1]
if helix_end_index < extension_length: # Zero-indexed <= one-indexed
entity1_first_residue_index = target_start_index
extension_str = f'-extend-{extension_length - helix_end_index}'
else: # First time this runs, it adds 0 to target_start_index
entity1_first_residue_index = target_start_index + helix_end_index - extension_length
extension_str = ''
# Use entity1_copy due to the removed helical portion on truncated_entity1
start_residue2 = entity1_copy.residues[entity1_first_residue_index]
end_residue2 = entity1_copy.c_terminal_residue
else: # termini == 'c'
ordered_entity1 = truncated_entity1
ordered_entity2 = transformed_entity2
helix_model_start_index = 0
helix_model_range = range(helix_model_start_index, helix_start_index)
# Get Residue instances that mark the boundary of the fusion
# Use entity1_copy due to the removed helical portion on truncated_entity1
start_residue1 = entity1_copy.n_terminal_residue
if helix_start_index <= length_of_target_helix: # Zero-indexed < one-indexed
entity1_last_residue_index = target_start_index + helix_start_index - 1
extension_str = ''
else:
entity1_last_residue_index = target_start_index + length_of_target_helix - 1
extension_str = f'-extend-{helix_start_index - length_of_target_helix}'
end_residue1 = entity1_copy.residues[entity1_last_residue_index] # c_terminal_residue
start_residue2 = transformed_entity2.n_terminal_residue # residues[aligned_start_index]
end_residue2 = transformed_entity2.c_terminal_residue
# Get the new fusion name
# alignment_numbers = f'{start_residue1.number}-{end_residue1.number}+{extension_str}/' \
# f'{start_residue2.number}-{end_residue2.number}'
fusion_name = f'{ordered_entity1.name}_{start_residue1.number}-' \
f'{end_residue1.number}_fused{extension_str}-to' \
f'_{ordered_entity2.name}_{start_residue2.number}-' \
f'{end_residue2.number}'
# Reformat residues for new chain
helix_n_terminal_residue_number = ordered_entity1.c_terminal_residue.number + 1
helix_model.renumber_residues(index=helix_model_start_index, at=helix_n_terminal_residue_number)
helix_residues = helix_model.get_residues(indices=list(helix_model_range))
ordered_entity2.renumber_residues(at=helix_n_terminal_residue_number + len(helix_residues))
if job.bend: # Get the joint_residue for later manipulation
joint_residue = transformed_entity2.residues[aligned_start_index + alignment_length//2]
# Create fused Entity and rename select attributes
logger.debug(f'Fusing {ordered_entity1} to {ordered_entity2}')
fused_entity = Entity.from_residues(
ordered_entity1.residues + helix_residues + ordered_entity2.residues,
name=fusion_name, chain_ids=[chain_id],
# Using sequence as reference_sequence is uncertain given the fusion
reference_sequence=ordered_entity1.sequence
+ ''.join(r.type1 for r in helix_residues) + ordered_entity2.sequence,
uniprot_ids=tuple(uniprot_id for entity in [ordered_entity1, ordered_entity2]
for uniprot_id in entity.uniprot_ids)
)
# ordered_entity1.write(out_path='DEBUG_1.pdb')
# helix_model.write(out_path='DEBUG_H.pdb')
# ordered_entity2.write(out_path='DEBUG_2.pdb')
# fused_entity.write(out_path='DEBUG_FUSED.pdb')
# Correct the .metadata attribute for each entity in the full assembly
# This is crucial for sql usage
protein_metadata = observed_protein_data.get(fusion_name)
if not protein_metadata:
protein_metadata = sql.ProteinMetadata(
entity_id=fused_entity.name, # model_source=None
reference_sequence=fused_entity.sequence,
thermophilicity=sum((entity1.thermophilicity, entity2.thermophilicity)),
# symmetry_group=sym_entry_chimera.groups[entity_idx],
n_terminal_helix=ordered_entity1.is_termini_helical(),
c_terminal_helix=ordered_entity2.is_termini_helical('c'),
uniprot_entities=tuple(uniprot_entity for entity in [ordered_entity1, ordered_entity2]
for uniprot_entity in entity.metadata.uniprot_entities))
observed_protein_data[fusion_name] = protein_metadata
fused_entity.metadata = protein_metadata
# Create the list of Entity instances for the new Pose
# logger.debug(f'Loading pose')
if additional_entities1:
all_entities = []
for entity_idx, entity in enumerate(additional_entities1):
if entity is None:
fused_entity.metadata.symmetry_group = sym_entry_chimera.groups[entity_idx]
all_entities.append(fused_entity)
else:
all_entities.append(entity)
else:
fused_entity.metadata.symmetry_group = sym_entry_chimera.groups[0]
all_entities = [fused_entity]
if additional_entities2:
transformed_additional_entities2 = [
entity.get_transformed_copy(rotation=rot, translation=tx)
for entity in additional_entities2]
# transformed_additional_entities2[0].write(out_path='DEBUG_Additional2.pdb')
# input('DEBUG_Additional2.pdb')
all_entities += transformed_additional_entities2
logger.debug(f'Creating Pose from entities: '
f'{", ".join(repr(entity) for entity in all_entities)}')
pose = Pose.from_entities(all_entities, sym_entry=sym_entry_chimera)
# pose.entities[0].write(assembly=True, out_path='DEBUG_oligomer.pdb')
# pose.write(out_path='DEBUG_POSE.pdb', increment_chains=True)
# pose.write(assembly=True, out_path='DEBUG_ASSEMBLY.pdb') # , increment_chains=True)
name = fusion_name
# name = f'{termini}-term_{aligned_idx + 1}-{helix_start_index + 1}'
if job.bend:
central_aligned_residue = pose.get_chain(chain_id).residue(joint_residue.number)
if central_aligned_residue is None:
logger.warning("Couldn't locate the joint_residue with residue number "
f"{joint_residue.number} from chain {chain_id}")
continue
# print(central_aligned_residue)
bent_coords = bend(pose, central_aligned_residue, termini, samples=job.bend,
additional_entity_ids=[entity.name for entity in pose.entities
if entity.name in additional_entity_ids2])
for bend_idx, coords in enumerate(bent_coords, 1):
pose.coords = coords
if pose.is_clash(measure=self.job.design.clash_criteria,
distance=self.job.design.clash_distance, silence_exceptions=True):
logger.info(f'Alignment {fusion_name}, bend {bend_idx} clashes')
if job.design.ignore_pose_clashes:
pass
else:
continue
if pose.is_symmetric():
if pose.symmetric_assembly_is_clash(measure=self.job.design.clash_criteria,
distance=self.job.design.clash_distance):
logger.info(f'Alignment {fusion_name}, bend {bend_idx} has '
'symmetric clashes')
if job.design.ignore_symmetric_clashes:
pass
else:
continue
_output_pose(name + f'-bend{bend_idx}')
else:
if pose.is_clash(measure=job.design.clash_criteria,
distance=job.design.clash_distance, silence_exceptions=True):
logger.info(f'Alignment {fusion_name} clashes')
if job.design.ignore_pose_clashes:
pass
else:
continue
if pose.is_symmetric():
if pose.symmetric_assembly_is_clash(measure=job.design.clash_criteria,
distance=job.design.clash_distance):
logger.info(f'Alignment {fusion_name} has symmetric clashes')
if job.design.ignore_symmetric_clashes:
pass
else:
continue
_output_pose(name)
logger.info(f'Total {project} trajectory took {time.time() - align_time_start:.2f}s')
if not pose_jobs:
logger.info(f'Found no viable outputs')
return []
def terminate(pose_jobs: list[PoseJob]) -> list[PoseJob]: # poses_df_: pd.DataFrame, residues_df_: pd.DataFrame)
"""Finalize any remaining work and return to the caller"""
pose_jobs = insert_pose_jobs(session, pose_jobs, project)
# # Format output data, fix missing
# if job.db:
# pose_ids = [pose_job.id for pose_job in pose_jobs]
# else:
# pose_ids = pose_names
# # Extract transformation parameters for output
# def populate_pose_metadata():
# """Add all required PoseJob information to output the created Pose instances for persistent storage"""
# # nonlocal poses_df_, residues_df_
# # Save all pose transformation information
# # From here out, the transforms used should be only those of interest for outputting/sequence design
#
# # # Format pose transformations for output
# # # Get all rotations in terms of the degree of rotation along the z-axis
# # # Using the x, y rotation to enforce the degeneracy matrix...
# # rotation_degrees_x, rotation_degrees_y, rotation_degrees_z = \
# # zip(*Rotation.from_matrix(rotation).as_rotvec(degrees=True).tolist())
# #
# # blank_parameter = [None, None, None]
# # if sym_entry.is_internal_tx1:
# # # nonlocal full_int_tx1
# # if len(full_int_tx1) > 1:
# # full_int_tx1 = full_int_tx1.squeeze()
# # z_height1 = full_int_tx1[:, -1]
# # else:
# # z_height1 = blank_parameter
# #
# # set_mat1_number, set_mat2_number, *_extra = sym_entry.setting_matrices_numbers
# # # if sym_entry.unit_cell:
# # # full_uc_dimensions = full_uc_dimensions[passing_symmetric_clash_indices_perturb]
# # # full_ext_tx1 = full_ext_tx1[:]
# # # full_ext_tx2 = full_ext_tx2[:]
# # # full_ext_tx_sum = full_ext_tx2 - full_ext_tx1
# # external_translation_x, external_translation_y, external_translation_z = \
# # blank_parameter if ext_translation is None else ext_translation
#
# # Update the sql.EntityData with transformations
# # for idx, pose_job in enumerate(pose_jobs):
# # # Update sql.EntityData, sql.EntityMetrics, sql.EntityTransform
# # # pose_id = pose_job.id
#
#
# # if job.db:
# # # Update the poses_df_ and residues_df_ index to reflect the new pose_ids
# # poses_df_.index = pd.Index(pose_ids, name=sql.PoseMetrics.pose_id.name)
# # # Write dataframes to the sql database
# # metrics.sql.write_dataframe(session, poses=poses_df_)
# # output_residues = False
# # if output_residues: # Todo job.metrics.residues
# # residues_df_.index = pd.Index(pose_ids, name=sql.PoseResidueMetrics.pose_id.name)
# # metrics.sql.write_dataframe(session, pose_residues=residues_df_)
# # else: # Write to disk
# # residues_df_.sort_index(level=0, axis=1, inplace=True, sort_remaining=False) # ascending=False
# # putils.make_path(job.all_scores)
# # residue_metrics_csv = os.path.join(job.all_scores, f'{building_blocks}_docked_poses_Residues.csv')
# # residues_df_.to_csv(residue_metrics_csv)
# # logger.info(f'Wrote residue metrics to {residue_metrics_csv}')
# # trajectory_metrics_csv = \
# # os.path.join(job.all_scores, f'{building_blocks}_docked_poses_Trajectories.csv')
# # job.dataframe = trajectory_metrics_csv
# # poses_df_ = pd.concat([poses_df_], keys=[('dock', 'pose')], axis=1)
# # poses_df_.columns = poses_df_.columns.swaplevel(0, 1)
# # poses_df_.sort_index(level=2, axis=1, inplace=True, sort_remaining=False)
# # poses_df_.sort_index(level=1, axis=1, inplace=True, sort_remaining=False)
# # poses_df_.sort_index(level=0, axis=1, inplace=True, sort_remaining=False)
# # poses_df_.to_csv(trajectory_metrics_csv)
# # logger.info(f'Wrote trajectory metrics to {trajectory_metrics_csv}')
#
# # Populate the database with pose information. Has access to nonlocal session
# populate_pose_metadata()
return pose_jobs
with job.db.session(expire_on_commit=False) as session:
pose_jobs = terminate(pose_jobs) # , poses_df, residues_df)
session.commit()
metrics_stmt = select(PoseJob).where(PoseJob.id.in_([pose_job.id for pose_job in pose_jobs])) \
.execution_options(populate_existing=True) \
.options(selectinload(PoseJob.metrics))
pose_jobs = session.scalars(metrics_stmt).all()
return pose_jobs
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