Coverage for biobb_amber/leap/leap_solvate.py: 70%

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1#!/usr/bin/env python3 

2 

3"""Module containing the LeapSolvate class and the command line interface.""" 

4import argparse 

5import re 

6from pathlib import PurePath 

7from biobb_common.generic.biobb_object import BiobbObject 

8from biobb_common.configuration import settings 

9from biobb_common.tools import file_utils as fu 

10from biobb_common.tools.file_utils import launchlogger 

11from biobb_amber.leap.common import check_input_path, check_output_path 

12 

13 

14class LeapSolvate(BiobbObject): 

15 """ 

16 | biobb_amber LeapSolvate 

17 | Wrapper of the `AmberTools (AMBER MD Package) leap tool <https://ambermd.org/AmberTools.php>`_ module. 

18 | Creates and solvates a system box for an AMBER MD system using tLeap tool from the AmberTools MD package. 

19 

20 Args: 

21 input_pdb_path (str): Input 3D structure PDB file. File type: input. `Sample file <https://github.com/bioexcel/biobb_amber/raw/master/biobb_amber/test/data/leap/structure.leap.pdb>`_. Accepted formats: pdb (edam:format_1476). 

22 input_lib_path (str) (Optional): Input ligand library parameters file. File type: input. `Sample file <https://github.com/bioexcel/biobb_amber/raw/master/biobb_amber/test/data/leap/ligand.lib>`_. Accepted formats: lib (edam:format_3889), zip (edam:format_3987). 

23 input_frcmod_path (str) (Optional): Input ligand frcmod parameters file. File type: input. `Sample file <https://github.com/bioexcel/biobb_amber/raw/master/biobb_amber/test/data/leap/ligand.frcmod>`_. Accepted formats: frcmod (edam:format_3888), zip (edam:format_3987). 

24 input_params_path (str) (Optional): Additional leap parameter files to load with loadAmberParams Leap command. File type: input. `Sample file <https://github.com/bioexcel/biobb_amber/raw/master/biobb_amber/test/data/leap/frcmod.ionsdang_spce.txt>`_. Accepted formats: in (edam:format_2330), leapin (edam:format_2330), txt (edam:format_2330), zip (edam:format_3987). 

25 input_source_path (str) (Optional): Additional leap command files to load with source Leap command. File type: input. `Sample file <https://github.com/bioexcel/biobb_amber/raw/master/biobb_amber/test/data/leap/leaprc.water.spce.txt>`_. Accepted formats: in (edam:format_2330), leapin (edam:format_2330), txt (edam:format_2330), zip (edam:format_3987). 

26 output_pdb_path (str): Output 3D structure PDB file matching the topology file. File type: output. `Sample file <https://github.com/bioexcel/biobb_amber/raw/master/biobb_amber/test/reference/leap/structure.solv.pdb>`_. Accepted formats: pdb (edam:format_1476). 

27 output_top_path (str): Output topology file (AMBER ParmTop). File type: output. `Sample file <https://github.com/bioexcel/biobb_amber/raw/master/biobb_amber/test/reference/leap/structure.solv.top>`_. Accepted formats: top (edam:format_3881), parmtop (edam:format_3881), prmtop (edam:format_3881). 

28 output_crd_path (str): Output coordinates file (AMBER crd). File type: output. `Sample file <https://github.com/bioexcel/biobb_amber/raw/master/biobb_amber/test/reference/leap/structure.solv.crd>`_. Accepted formats: crd (edam:format_3878), mdcrd (edam:format_3878), inpcrd (edam:format_3878). 

29 properties (dic - Python dictionary object containing the tool parameters, not input/output files): 

30 * **forcefield** (*list*) - (["protein.ff14SB","DNA.bsc1","gaff"]) Forcefield to be used for the structure generation. Values: protein.ff14SB, protein.ff19SB, DNA.bsc1, DNA.OL15, RNA.OL3, gaff. 

31 * **water_type** (*str*) - ("TIP3PBOX") Water molecule parameters to be used for the topology. Values: POL3BOX, QSPCFWBOX, SPCBOX, SPCFWBOX, TIP3PBOX, TIP3PFBOX, TIP4PBOX, TIP4PEWBOX, OPCBOX, OPC3BOX, TIP5PBOX. 

32 * **box_type** (*str*) - ("truncated_octahedron") Type for the MD system box. Values: cubic, truncated_octahedron. 

33 * **ions_type** (*str*) - ("ionsjc_tip3p") Ions type. Values: ionsjc_tip3p, ionsjc_spce, ionsff99_tip3p, ions_charmm22, ionsjc_tip4pew, None. 

34 * **neutralise** (*bool*) - ("False") Energetically neutralise the system adding the necessary counterions. 

35 * **iso** (*bool*) - ("False") Make the box isometric. 

36 * **positive_ions_number** (*int*) - (0) Number of additional positive ions to include in the system box. 

37 * **negative_ions_number** (*int*) - (0) Number of additional negative ions to include in the system box. 

38 * **positive_ions_type** (*str*) - ("Na+") Type of additional positive ions to include in the system box. Values: Na+,K+. 

39 * **negative_ions_type** (*str*) - ("Cl-") Type of additional negative ions to include in the system box. Values: Cl-. 

40 * **distance_to_molecule** (*float*) - ("8.0") Size for the MD system box -in Angstroms-, defined such as the minimum distance between any atom originally present in solute and the edge of the periodic box is given by this distance parameter. 

41 * **closeness** (*float*) - ("1.0") How close, in Å, solvent ATOMs may come to solute ATOMs. 

42 * **binary_path** (*str*) - ("tleap") Path to the tleap executable binary. 

43 * **remove_tmp** (*bool*) - (True) [WF property] Remove temporal files. 

44 * **restart** (*bool*) - (False) [WF property] Do not execute if output files exist. 

45 * **container_path** (*str*) - (None) Container path definition. 

46 * **container_image** (*str*) - ('afandiadib/ambertools:serial') Container image definition. 

47 * **container_volume_path** (*str*) - ('/tmp') Container volume path definition. 

48 * **container_working_dir** (*str*) - (None) Container working directory definition. 

49 * **container_user_id** (*str*) - (None) Container user_id definition. 

50 * **container_shell_path** (*str*) - ('/bin/bash') Path to default shell inside the container. 

51 

52 Examples: 

53 This is a use example of how to use the building block from Python:: 

54 from biobb_amber.leap.leap_solvate import leap_solvate 

55 prop = { 

56 'forcefield': ['protein.ff14SB'], 

57 'water_type': 'TIP3PBOX', 

58 'box_type': 'truncated_octahedron', 

59 'neutralise' : True 

60 } 

61 leap_solvate(input_pdb_path='/path/to/structure.pdb', 

62 output_pdb_path='/path/to/newStructure.pdb', 

63 output_top_path='/path/to/newTopology.top', 

64 output_crd_path='/path/to/newCoordinates.crd', 

65 properties=prop) 

66 

67 Info: 

68 * wrapped_software: 

69 * name: AmberTools tLeap 

70 * version: >20.9 

71 * license: LGPL 2.1 

72 * ontology: 

73 * name: EDAM 

74 * schema: http://edamontology.org/EDAM.owl 

75 

76 """ 

77 

78 def __init__(self, input_pdb_path: str, output_pdb_path: str, 

79 output_top_path: str, output_crd_path: str, 

80 input_lib_path: str = None, input_frcmod_path: str = None, 

81 input_params_path: str = None, input_source_path: str = None, 

82 properties: dict = None, **kwargs): 

83 

84 properties = properties or {} 

85 

86 # Call parent class constructor 

87 super().__init__(properties) 

88 self.locals_var_dict = locals().copy() 

89 

90 # Input/Output files 

91 self.io_dict = { 

92 'in': {'input_pdb_path': input_pdb_path, 

93 'input_lib_path': input_lib_path, 

94 'input_frcmod_path': input_frcmod_path, 

95 'input_params_path': input_params_path, 

96 'input_source_path': input_source_path}, 

97 'out': {'output_pdb_path': output_pdb_path, 

98 'output_top_path': output_top_path, 

99 'output_crd_path': output_crd_path} 

100 } 

101 

102 # # Ligand Parameter lists 

103 # self.ligands_lib_list = [] 

104 # if input_lib_path: 

105 # self.ligands_lib_list.append(input_lib_path) 

106 # 

107 # self.ligands_frcmod_list = [] 

108 # if input_frcmod_path: 

109 # self.ligands_frcmod_list.append(input_frcmod_path) 

110 

111 # Properties specific for BB 

112 self.properties = properties 

113 self.forcefield = properties.get('forcefield', ["protein.ff14SB", "DNA.bsc1", "gaff"]) 

114 self.water_type = properties.get('water_type', "TIP3PBOX") 

115 self.box_type = properties.get('box_type', "truncated_octahedron") 

116 self.ions_type = properties.get('ions_type', "ionsjc_tip3p") 

117 self.neutralise = properties.get('neutralise', False) 

118 self.iso = properties.get('iso', False) 

119 self.positive_ions_number = properties.get('positive_ions_number', 0) 

120 self.positive_ions_type = properties.get('positive_ions_type', "Na+") 

121 self.negative_ions_number = properties.get('negative_ions_number', 0) 

122 self.negative_ions_type = properties.get('negative_ions_type', "Cl-") 

123 self.distance_to_molecule = properties.get('distance_to_molecule', 8.0) 

124 self.closeness = properties.get('closeness', 1.0) 

125 self.binary_path = properties.get('binary_path', 'tleap') 

126 

127 # Check the properties 

128 self.check_properties(properties) 

129 self.check_arguments() 

130 

131 def check_data_params(self, out_log, err_log): 

132 """ Checks input/output paths correctness """ 

133 

134 # Check input(s) 

135 self.io_dict["in"]["input_pdb_path"] = check_input_path(self.io_dict["in"]["input_pdb_path"], "input_pdb_path", False, out_log, self.__class__.__name__) 

136 self.io_dict["in"]["input_lib_path"] = check_input_path(self.io_dict["in"]["input_lib_path"], "input_lib_path", True, out_log, self.__class__.__name__) 

137 self.io_dict["in"]["input_frcmod_path"] = check_input_path(self.io_dict["in"]["input_frcmod_path"], "input_frcmod_path", True, out_log, self.__class__.__name__) 

138 # self.io_dict["in"]["input_params_path"] = check_input_path(self.io_dict["in"]["input_params_path"], "input_params_path", True, out_log, self.__class__.__name__) 

139 # self.io_dict["in"]["input_source_path"] = check_input_path(self.io_dict["in"]["input_source_path"], "input_source_path", True, out_log, self.__class__.__name__) 

140 

141 # Check output(s) 

142 self.io_dict["out"]["output_pdb_path"] = check_output_path(self.io_dict["out"]["output_pdb_path"], "output_pdb_path", False, out_log, self.__class__.__name__) 

143 self.io_dict["out"]["output_top_path"] = check_output_path(self.io_dict["out"]["output_top_path"], "output_top_path", False, out_log, self.__class__.__name__) 

144 self.io_dict["out"]["output_crd_path"] = check_output_path(self.io_dict["out"]["output_crd_path"], "output_crd_path", False, out_log, self.__class__.__name__) 

145 

146 @launchlogger 

147 def launch(self): 

148 """Launches the execution of the LeapSolvate module.""" 

149 

150 # check input/output paths and parameters 

151 self.check_data_params(self.out_log, self.err_log) 

152 

153 # Setup Biobb 

154 if self.check_restart(): 

155 return 0 

156 self.stage_files() 

157 

158 box_command = "solvateOct" 

159 if self.box_type == "cubic": 

160 box_command = "solvateBox" 

161 

162 # Forcefield 

163 # source_ff_command = "source leaprc." + self.forcefield 

164 

165 # Water Type 

166 # leaprc.water.tip4pew, tip4pd, tip3p, spceb, spce, opc, fb4, fb3 

167 # Values: POL3BOX, QSPCFWBOX, SPCBOX, SPCFWBOX, TIP3PBOX, TIP3PFBOX, TIP4PBOX, TIP4PEWBOX, OPCBOX, OPC3BOX, TIP5PBOX. 

168 source_wat_command = "source leaprc.water.tip3p" 

169 if self.water_type == "TIP4PEWBOX": 

170 source_wat_command = "leaprc.water.tip4pew" 

171 if self.water_type == "TIP4PBOX": 

172 source_wat_command = "leaprc.water.tip4pd" 

173 if re.match(r"SPC", self.water_type): 

174 source_wat_command = "source leaprc.water.spce" 

175 if re.match(r"OPC", self.water_type): 

176 source_wat_command = "source leaprc.water.opc" 

177 

178 # Counterions 

179 ions_command = "" 

180 if self.neutralise: 

181 ions_command = ions_command + "addions mol " + self.negative_ions_type + " 0 \n" 

182 ions_command = ions_command + "addions mol " + self.positive_ions_type + " 0 \n" 

183 

184 if self.negative_ions_number != 0: 

185 ions_command = ions_command + "addions mol " + self.negative_ions_type + " " + str(self.negative_ions_number) + " \n" 

186 if self.positive_ions_number != 0: 

187 ions_command = ions_command + "addions mol " + self.positive_ions_type + " " + str(self.positive_ions_number) + " \n" 

188 

189 # Creating temporary folder & Leap configuration (instructions) file 

190 if self.container_path: 

191 instructions_file = str(PurePath(self.stage_io_dict['unique_dir']).joinpath("leap.in")) 

192 instructions_file_path = str(PurePath(self.container_volume_path).joinpath("leap.in")) 

193 self.tmp_folder = None 

194 else: 

195 self.tmp_folder = fu.create_unique_dir() 

196 instructions_file = str(PurePath(self.tmp_folder).joinpath("leap.in")) 

197 fu.log('Creating %s temporary folder' % self.tmp_folder, self.out_log) 

198 instructions_file_path = instructions_file 

199 

200 ligands_lib_list = [] 

201 if self.io_dict['in']['input_lib_path'] is not None: 

202 if self.io_dict['in']['input_lib_path'].endswith('.zip'): 

203 ligands_lib_list = fu.unzip_list(self.stage_io_dict['in']['input_lib_path'], dest_dir=self.tmp_folder, out_log=self.out_log) 

204 else: 

205 ligands_lib_list.append(self.stage_io_dict['in']['input_lib_path']) 

206 

207 ligands_frcmod_list = [] 

208 if self.io_dict['in']['input_frcmod_path'] is not None: 

209 if self.io_dict['in']['input_frcmod_path'].endswith('.zip'): 

210 ligands_frcmod_list = fu.unzip_list(self.stage_io_dict['in']['input_frcmod_path'], dest_dir=self.tmp_folder, out_log=self.out_log) 

211 else: 

212 ligands_frcmod_list.append(self.stage_io_dict['in']['input_frcmod_path']) 

213 

214 amber_params_list = [] 

215 if self.io_dict['in']['input_params_path'] is not None: 

216 if self.io_dict['in']['input_params_path'].endswith('.zip'): 

217 amber_params_list = fu.unzip_list(self.stage_io_dict['in']['input_params_path'], dest_dir=self.tmp_folder, out_log=self.out_log) 

218 else: 

219 amber_params_list.append(self.stage_io_dict['in']['input_params_path']) 

220 

221 leap_source_list = [] 

222 if self.io_dict['in']['input_source_path'] is not None: 

223 if self.io_dict['in']['input_source_path'].endswith('.zip'): 

224 leap_source_list = fu.unzip_list(self.stage_io_dict['in']['input_source_path'], dest_dir=self.tmp_folder, out_log=self.out_log) 

225 else: 

226 leap_source_list.append(self.stage_io_dict['in']['input_source_path']) 

227 

228 with open(instructions_file, 'w') as leapin: 

229 # Forcefields loaded by default: 

230 # Protein: ff14SB (PARM99 + frcmod.ff99SB + frcmod.parmbsc0 + OL3 for RNA) 

231 # leapin.write("source leaprc.protein.ff14SB \n") 

232 # DNA: parmBSC1 (ParmBSC1 (ff99 + bsc0 + bsc1) for DNA. Ivani et al. Nature Methods 13: 55, 2016) 

233 # leapin.write("source leaprc.DNA.bsc1 \n") 

234 # Ligands: GAFF (General Amber Force field, J. Comput. Chem. 2004 Jul 15;25(9):1157-74) 

235 # leapin.write("source leaprc.gaff \n") 

236 

237 # Forcefields loaded from input forcefield property 

238 for t in self.forcefield: 

239 leapin.write("source leaprc.{}\n".format(t)) 

240 

241 # Additional Leap commands 

242 for leap_commands in leap_source_list: 

243 leapin.write("source " + leap_commands + "\n") 

244 

245 # Ions Type 

246 if self.ions_type != "None": 

247 leapin.write("loadamberparams frcmod." + self.ions_type + "\n") 

248 

249 # Additional Amber parameters 

250 for amber_params in amber_params_list: 

251 leapin.write("loadamberparams " + amber_params + "\n") 

252 

253 # Water Model loaded from input water_model property 

254 leapin.write(source_wat_command + " \n") 

255 

256 # Ligand(s) libraries (if any) 

257 for amber_lib in ligands_lib_list: 

258 leapin.write("loadOff " + amber_lib + "\n") 

259 for amber_frcmod in ligands_frcmod_list: 

260 leapin.write("loadamberparams " + amber_frcmod + "\n") 

261 

262 # Loading PDB file 

263 leapin.write("mol = loadpdb " + self.stage_io_dict['in']['input_pdb_path'] + " \n") 

264 

265 # Generating box + adding water molecules 

266 leapin.write(box_command + " mol " + self.water_type + " " + str(self.distance_to_molecule)) 

267 leapin.write(" iso " + str(self.closeness) + "\n") if self.iso else leapin.write(" " + str(self.closeness) + "\n") 

268 

269 # Adding counterions 

270 leapin.write(ions_command) 

271 

272 # Saving output PDB file, coordinates and topology 

273 leapin.write("savepdb mol " + self.stage_io_dict['out']['output_pdb_path'] + " \n") 

274 leapin.write("saveAmberParm mol " + self.stage_io_dict['out']['output_top_path'] + " " + self.stage_io_dict['out']['output_crd_path'] + "\n") 

275 leapin.write("quit \n") 

276 

277 # Command line 

278 self.cmd = [self.binary_path, 

279 '-f', instructions_file_path 

280 ] 

281 

282 # Run Biobb block 

283 self.run_biobb() 

284 

285 # Copy files to host 

286 self.copy_to_host() 

287 

288 # Saving octahedron box with all decimals in PDB file. Needed for the add_ions BB. 

289 

290 # Getting octahedron box from generated crd file 

291 with open(self.io_dict['out']['output_crd_path'], "r") as file: 

292 for line in file: 

293 pass 

294 

295 # Adding box as a first line in the generated pdb file with OCTBOX tag 

296 octbox = "OCTBOX " + line 

297 with open(self.io_dict['out']['output_pdb_path'], 'r+') as f: 

298 content = f.read() 

299 f.seek(0, 0) 

300 f.write(octbox + content) 

301 

302 # remove temporary folder(s) 

303 self.tmp_files.extend([ 

304 self.stage_io_dict.get("unique_dir"), 

305 self.tmp_folder, 

306 "leap.log" 

307 ]) 

308 self.remove_tmp_files() 

309 

310 self.check_arguments(output_files_created=True, raise_exception=False) 

311 

312 return self.return_code 

313 

314 

315def leap_solvate(input_pdb_path: str, output_pdb_path: str, 

316 output_top_path: str, output_crd_path: str, 

317 input_lib_path: str = None, input_frcmod_path: str = None, 

318 input_params_path: str = None, input_source_path: str = None, 

319 properties: dict = None, **kwargs) -> int: 

320 """Create :class:`LeapSolvate <leap.leap_solvate.LeapSolvate>`leap.leap_solvate.LeapSolvate class and 

321 execute :meth:`launch() <leap.leap_solvate.LeapSolvate.launch>` method""" 

322 

323 return LeapSolvate(input_pdb_path=input_pdb_path, 

324 input_lib_path=input_lib_path, 

325 input_frcmod_path=input_frcmod_path, 

326 input_params_path=input_params_path, 

327 input_source_path=input_source_path, 

328 output_pdb_path=output_pdb_path, 

329 output_top_path=output_top_path, 

330 output_crd_path=output_crd_path, 

331 properties=properties).launch() 

332 

333 

334def main(): 

335 parser = argparse.ArgumentParser(description='Generating and solvating a system box for an AMBER MD system. using tLeap program from AmberTools MD package.', formatter_class=lambda prog: argparse.RawTextHelpFormatter(prog, width=99999)) 

336 parser.add_argument('--config', required=False, help='Configuration file') 

337 

338 # Specific args 

339 required_args = parser.add_argument_group('required arguments') 

340 required_args.add_argument('--input_pdb_path', required=True, help='Input 3D structure PDB file. Accepted formats: pdb.') 

341 required_args.add_argument('--input_lib_path', required=False, help='Input ligand library parameters file. Accepted formats: lib, zip.') 

342 required_args.add_argument('--input_frcmod_path', required=False, help='Input ligand frcmod parameters file. Accepted formats: frcmod, zip.') 

343 required_args.add_argument('--input_params_path', required=False, help='Additional leap parameter files to load with loadAmberParams Leap command. Accepted formats: leapin, in, txt, zip.') 

344 required_args.add_argument('--input_source_path', required=False, help='Additional leap command files to load with source Leap command. Accepted formats: leapin, in, txt, zip.') 

345 required_args.add_argument('--output_pdb_path', required=True, help='Output 3D structure PDB file matching the topology file. Accepted formats: pdb.') 

346 required_args.add_argument('--output_top_path', required=True, help='Output topology file (AMBER ParmTop). Accepted formats: top.') 

347 required_args.add_argument('--output_crd_path', required=True, help='Output coordinates file (AMBER crd). Accepted formats: crd.') 

348 

349 args = parser.parse_args() 

350 config = args.config if args.config else None 

351 properties = settings.ConfReader(config=config).get_prop_dic() 

352 

353 # Specific call 

354 leap_solvate(input_pdb_path=args.input_pdb_path, 

355 input_lib_path=args.input_lib_path, 

356 input_frcmod_path=args.input_frcmod_path, 

357 input_params_path=args.input_params_path, 

358 input_source_path=args.input_source_path, 

359 output_pdb_path=args.output_pdb_path, 

360 output_top_path=args.output_top_path, 

361 output_crd_path=args.output_crd_path, 

362 properties=properties) 

363 

364 

365if __name__ == '__main__': 

366 main()