#!/usr/bin/env python3
"""Module containing the StrCheckAddHydrogens class and the command line interface."""
import argparse
from biobb_common.configuration import settings
from biobb_common.generic.biobb_object import BiobbObject
from biobb_common.tools.file_utils import launchlogger
from biobb_structure_utils.utils.common import check_input_path, check_output_path_pdbqt, check_output_end
[docs]class StrCheckAddHydrogens(BiobbObject):
"""
| biobb_structure_utils StrCheckAddHydrogens
| This class is a wrapper of the Structure Checking tool to add hydrogens to a 3D structure.
| Wrapper for the `Structure Checking <https://github.com/bioexcel/biobb_structure_checking>`_ tool to add hydrogens to a 3D structure.
Args:
input_structure_path (str): Input structure file path. File type: input. `Sample file <https://github.com/bioexcel/biobb_structure_utils/raw/master/biobb_structure_utils/test/data/utils/str_no_H.pdb>`_. Accepted formats: pdb (edam:format_1476).
output_structure_path (str): Output structure file path. File type: output. `Sample file <https://github.com/bioexcel/biobb_structure_utils/raw/master/biobb_structure_utils/test/reference/utils/ref_str_H.pdbqt>`_. Accepted formats: pdb (edam:format_1476), pdbqt (edam:format_1476).
properties (dic - Python dictionary object containing the tool parameters, not input/output files):
* **charges** (*bool*) - (False) Whether or not to add charges to the output file. If True the output is in PDBQT format.
* **mode** (*string*) - (auto) Selection mode. Values: auto, list, ph
* **ph** (*float*) - (7.4) [0~14|0.1] Add hydrogens appropriate for pH. Only in case mode ph selected.
* **list** (*string*) - ("") List of residues to modify separated by commas (i.e HISA234HID,HISB33HIE). Only in case mode list selected.
* **keep_canonical_resnames** (*bool*) - (False) Whether or not keep canonical residue names
* **binary_path** (*string*) - ("check_structure") path to the check_structure application
* **remove_tmp** (*bool*) - (True) [WF property] Remove temporal files.
* **restart** (*bool*) - (False) [WF property] Do not execute if output files exist.
Examples:
This is a use example of how to use the building block from Python::
from biobb_structure_utils.utils.str_check_add_hydrogens import str_check_add_hydrogens
prop = {
'charges': False,
'mode': 'auto'
}
str_check_add_hydrogens(input_structure_path='/path/to/myInputStr.pdb',
output_structure_path='/path/to/newStructure.pdb',
properties=prop)
Info:
* wrapped_software:
* name: Structure Checking from MDWeb
* version: >=3.0.3
* license: Apache-2.0
* ontology:
* name: EDAM
* schema: http://edamontology.org/EDAM.owl
"""
def __init__(self, input_structure_path, output_structure_path, properties=None, **kwargs) -> None:
properties = properties or {}
# Call parent class constructor
super().__init__(properties)
self.locals_var_dict = locals().copy()
# Input/Output files
self.io_dict = {
"in": {"input_structure_path": input_structure_path},
"out": {"output_structure_path": output_structure_path}
}
# Properties specific for BB
self.binary_path = properties.get('binary_path', 'check_structure')
self.charges = properties.get('charges', False)
self.mode = properties.get('mode', 'auto')
self.ph = properties.get('ph', 7.4)
self.list = properties.get('list', '')
self.keep_canonical_resnames = properties.get('keep_canonical_resnames', False)
self.properties = properties
# Check the properties
self.check_properties(properties)
self.check_arguments()
[docs] @launchlogger
def launch(self) -> int:
"""Execute the :class:`StrCheckAddHydrogens <utils.str_check_add_hydrogens.StrCheckAddHydrogens>` utils.str_check_add_hydrogens.StrCheckAddHydrogens object."""
self.io_dict['in']['input_structure_path'] = check_input_path(self.io_dict['in']['input_structure_path'],
self.out_log, self.__class__.__name__)
self.io_dict['out']['output_structure_path'] = check_output_path_pdbqt(self.io_dict['out']['output_structure_path'],
self.out_log, self.__class__.__name__)
# Setup Biobb
if self.check_restart():
return 0
self.stage_files()
self.cmd = [self.binary_path,
'-i', self.stage_io_dict['in']['input_structure_path'],
'-o', self.stage_io_dict['out']['output_structure_path'],
'--non_interactive',
'--force_save']
if self.keep_canonical_resnames:
self.cmd.append('--keep_canonical_resnames')
self.cmd.extend(['command_list', '--list', "'add_hydrogen"])
if self.charges:
self.cmd.append('--add_charges')
self.cmd.append('ADT')
if self.mode:
self.cmd.extend(['--add_mode', self.mode])
if self.mode == 'ph':
self.cmd.extend(['--pH', self.ph])
if self.mode == 'list':
self.cmd.extend(['--list', self.list])
else:
self.cmd.extend(['--add_mode', 'None'])
self.cmd.append("'")
# Run Biobb block
self.run_biobb()
# Copy files to host
self.copy_to_host()
check_output_end(self.io_dict["out"]["output_structure_path"], self.out_log)
# Remove temporal files
self.tmp_files.append(self.stage_io_dict.get("unique_dir"))
self.remove_tmp_files()
self.check_arguments(output_files_created=True, raise_exception=False)
return self.return_code
[docs]def str_check_add_hydrogens(input_structure_path: str, output_structure_path: str, properties: dict = None, **kwargs) -> int:
"""Execute the :class:`StrCheckAddHydrogens <utils.str_check_add_hydrogens.StrCheckAddHydrogens>` class and
execute the :meth:`launch() <utils.str_check_add_hydrogens.StrCheckAddHydrogens.launch>` method."""
return StrCheckAddHydrogens(input_structure_path=input_structure_path,
output_structure_path=output_structure_path,
properties=properties, **kwargs).launch()
[docs]def main():
"""Command line execution of this building block. Please check the command line documentation."""
parser = argparse.ArgumentParser(description="Class to add hydrogens to a 3D structure.", formatter_class=lambda prog: argparse.RawTextHelpFormatter(prog, width=99999))
parser.add_argument('-c', '--config', required=False, help="This file can be a YAML file, JSON file or JSON string")
# Specific args of each building block
required_args = parser.add_argument_group('required arguments')
required_args.add_argument('-i', '--input_structure_path', required=True, help="Input structure file path. Accepted formats: pdb.")
required_args.add_argument('-o', '--output_structure_path', required=True, help="Output structure file path. Accepted formats: pdb, pdbqt.")
args = parser.parse_args()
config = args.config if args.config else None
properties = settings.ConfReader(config=config).get_prop_dic()
# Specific call of each building block
str_check_add_hydrogens(input_structure_path=args.input_structure_path,
output_structure_path=args.output_structure_path,
properties=properties)
if __name__ == '__main__':
main()