MAPE-PPI

MAPE-PPI: Towards Effective and Efficient Protein-Protein Interaction Prediction via Microenvironment-Aware Protein Embedding (Spotlight)

Lirong Wu, Yijun Tian, Yufei Huang, Siyuan Li, Haitao Lin, Nitesh V Chawla, Stan Z. Li. In ICLR, 2024.

Dependencies

conda env create -f environment.yml
conda activate MAPE-PPI

The default PyTorch version is 2.0.0 and cudatoolkit version is 11.7. They can be changed in environment.yml.

Dataset

Raw data of the three datasets (SHS27k, SHS148k, and STRING) can be downloaded from the Google Drive:

• protein.STRING.sequences.dictionary.tsv Protein sequences of STRING
• protein.actions.STRING.txt PPI network of STRING
• STRING_AF2DB PDB files of protein structures predicted by AlphaFold2

Pre-process raw data to generate feature and adjacency matrices (also applicable to any new dataset):

python ./raw_data/data_process.py --dataset data_name

where data_name is one of the three datasets (SHS27k, SHS148k, and STRING).

For ease of use, we have pre-processed these three datasets and placed the processed data in Google Drive.

To use the processed data, please put them in `./data/processed_data/.

Usage

Pre-training and Inference on SHS27k/SHS148k/STRING

python -B train.py --dataset STRING --split_mode bfs

The hyperparameters customized for each dataset and data partitions are available in ./configs/param_config.json.

Pre-training on additional data, Inference on SHS27k/SHS148k/STRING

To pre-train with customized data (e.g., CATH or AlphaFoldDB datasets), please refer to the following steps:

(1) Download additional pre-training data (including their PDF files) from the official website.

(2) Pre-process pre-training PDB files as done in ./raw_data/data_process.py and transform into three files:

• protein.nodes.pretrain_data.pt
• protein.rball.edges.pretrain_data.npy
• protein.knn.edges.pretrain_data.npy

where pretrain_data is the name of the additional pre-training dataset.

(3) Load pre-processed data and perform pretraining on it, running

python -B train.py --dataset STRING --split_mode bfs --pre_train pretrain_data

Loading the pre-trained model and Inference on SHS27k/SHS148k/STRING

We provide a pre-trained model in ./trained_model/ for PPI prediction on STRING. To use it, please run

python -B train.py --dataset STRING --split_mode bfs --ckpt_path ../trained_model/vae_model.ckpt

Citation

If you are interested in our repository and our paper, please cite the following paper:

@article{wu2024mape,
  title={MAPE-PPI: Towards Effective and Efficient Protein-Protein Interaction Prediction via Microenvironment-Aware Protein Embedding},
  author={Wu, Lirong and Tian, Yijun and Huang, Yufei and Li, Siyuan and Lin, Haitao and Chawla, Nitesh V and Li, Stan Z},
  journal={arXiv preprint arXiv:2402.14391},
  year={2024}
}

Feedback

If you have any issue about this work, please feel free to contact me by email:

• Lirong Wu: [email protected]