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EquiPPIS.py
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EquiPPIS.py
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#!/usr/bin/python
# EquiPPIS: E(3) equivariant graph neural network for PPI site prediction
#
# Copyright (C) Bhattacharya Laboratory 2022
#
# EquiPPIS is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# EquiPPIS is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with EquiPPIS. If not, see <http://www.gnu.org/licenses/>.
#
############################################################################
from egnn_clean import *
import argparse
import os
import sys
import warnings
warnings.simplefilter(action='ignore', category=FutureWarning)
from dgl.dataloading import GraphDataLoader
import dgl
import math
import numpy as np
import torch
from Dataloader import buildGraph
from torch import nn, optim
from torch.nn import functional as F
from torch.utils.data import DataLoader
def to_np(x):
return x.cpu().detach().numpy()
def test_epoch(epoch, model, dataloader, PARS):
model.eval()
for i, (data_feats) in enumerate(dataloader):
(tgt_name, nodeFeats, xyz_feats, edges, edge_att) = data_feats
tgt_name = tgt_name[0]
#print(tgt_name)
print('running ' + tgt_name + ' ...')
#n_nodes = len(nodeFeats[0])
#n_e = len(edges[0])
nodeFeats = nodeFeats.to(PARS.device)
xyz_feats = xyz_feats.to(PARS.device)
edges[0] = edges[0].to(PARS.device)
edges[1] = edges[1].to(PARS.device)
edge_att = edge_att.to(PARS.device)
nodeFeats = nodeFeats.squeeze()
xyz_feats = xyz_feats.squeeze()
edges[0] = edges[0].squeeze()
edges[1] = edges[1].squeeze()
edge_att = edge_att.squeeze()
edge_att = edge_att.unsqueeze(dim=1)
#print("####### Target ##########")
# run model forward and compute loss
pred, xyz = model(nodeFeats, xyz_feats, edges, edge_att)
pred = torch.nn.Sigmoid()(pred)
pred = pred.detach().numpy()
#print(pred)
fo = open(PARS.outdir + '/' + tgt_name + '.out', 'w')
for pr in pred:
fo.write(str(pr[0]) + '\n')
fo.close()
print('done!')
def print_usage():
print("\nUsage: EquiPPIS.py [options]\n")
print("Options:")
print(" -h, --help show this help message and exit")
print(" --model MODEL String name of model (default 'EGNN')")
print(" --model_state_dict MODEL_STATE_DICT")
print(" Saved model")
print(" --indir INDIR Path to input data containing distance maps and input features (default 'Preprocessing/')")
print(" --outdir OUTDIR Prediction output directory")
print(" Number of data loader workers")
print(" --num_workers NUM_WORKERS")
print(" Number of data loader workers (default=4)")
def main(PARS):
dataset = buildGraph(path=PARS.indir)
inference_loader = GraphDataLoader(dataset, batch_size=1, shuffle=False)
# Get Model
model = EGNN(in_node_nf=118, hidden_nf=256, out_node_nf=1, in_edge_nf=1, n_layers=10,
attention=True)
model.load_state_dict(torch.load(PARS.model_state_dict))
model.to(PARS.device)
test_epoch(0, model, inference_loader, PARS)
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('--model', type=str, default='EGNN',
help="String name of model (default 'EGNN')")
parser.add_argument('--model_state_dict', type=str, default=None,
help="Saved model")
parser.add_argument('--indir', type=str, default='Preprocessing/',
help="Path to input data containing distance maps and input features (default 'Preprocessing/')")
parser.add_argument('--outdir', type=str, default='',
help="Prediction output directory")
parser.add_argument('--num_workers', type=int, default=4,
help="Number of data loader workers (default=4)")
PARS, _ = parser.parse_known_args()
#basic input check
if not PARS.model_state_dict:
print('Error! Trained model must be provided. Exiting ...')
print_usage()
sys.exit()
if (PARS.outdir == ''):
print('Error! Path to the output directory must be provided. Exiting ...')
print_usage()
sys.exit()
#existance check
if not os.path.exists(PARS.model_state_dict):
print('Error! No such trained model exists. Exiting ...')
print_usage()
sys.exit()
if not os.path.exists(PARS.indir):
print('Error! No such input directory exists. Exiting ...')
print_usage()
sys.exit()
if not os.path.exists(PARS.outdir):
print('Error! No such output directory exists. Exiting ...')
print_usage()
sys.exit()
#header
print("\n******************************************************************************")
print("* EquiPPIS *")
print("* E(3) equivariant graph neural network for PPI site prediction *")
print("* For comments, please email to dbhattacharya@vt.edu *")
print("******************************************************************************\n")
print('PPI sites prediction probablity threshold is set to 0.18')
print('Residie-level predictions for each target is being saved at ' + PARS.outdir + '\n')
seed = 1992
torch.manual_seed(seed)
np.random.seed(seed)
PARS.device = torch.device('cpu')
main(PARS)