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---
dataset_info:
  features:
  - name: seq
    dtype: string
  - name: label
    dtype: int64
  splits:
  - name: train
    num_bytes: 986536
    num_examples: 19526
  - name: test
    num_bytes: 227922
    num_examples: 4485
  download_size: 458823
  dataset_size: 1214458
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
  - split: test
    path: data/test-*
task_categories:
- text-classification
tags:
- chemistry
- biology
size_categories:
- 10K<n<100K
---


# Dataset Card for TCR_pMHC_Affinity Dataset

### Dataset Summary

The interaction between T cell receptors (TCRs) and peptide-major histocompatibility complexes (pMHCs) plays a crucial role in the recognition and activation of T cells in the immune system. TCRs are cell surface receptors found on T cells, and pMHCs are complexes formed by peptides derived from antigens bound to major histocompatibility complexes (MHCs) on the surface of antigen-presenting cells. The classification task is to predict whether a given paired TCR sequence and peptide can bind or not. 

## Dataset Structure

### Data Instances
For each instance, there is a string representing the protein sequence and an integer label indicating whether a given paired TCR sequence and peptide can bind or not. See the [TCR_pMHC_Affinity dataset viewer](https://huggingface.co/datasets/Bo1015/tcr_pmhc_affinity/viewer) to explore more examples.

```
{'seq':'CAGADGGSQGNLIF|CASSTRSTDTQYF|GILGFVFTL'
'label':1}
```

The average  for the `seq` and the `label` are provided below:

| Feature    | Mean Count |
| ---------- | ---------------- |
| seq    | 39    |
| label (0)    | 0.83    |
| label (1)   | 0.17    |


### Data Fields

- `seq`: a string containing the protein sequence
- `label`: an integer label indicating whether a given paired TCR sequence and peptide can bind or not.

### Data Splits

The  TCR_pMHC_Affinity dataset has 2 splits: _train_ and _test_. Below are the statistics of the dataset.

| Dataset Split | Number of Instances in Split                |
| ------------- | ------------------------------------------- |
| Train         | 19,526                            |
| Test          | 4,485                                      |

### Source Data

#### Initial Data Collection and Normalization

 The dataset is major from [VDJdb](https://vdjdb.cdr3.net/), processed and curated from [epiTCR](https://academic.oup.com/bioinformatics/article/39/5/btad284/7140137).


### Citation
If you find our work useful, please consider citing the following paper:

```
@misc{chen2024xtrimopglm,
  title={xTrimoPGLM: unified 100B-scale pre-trained transformer for deciphering the language of protein},
  author={Chen, Bo and Cheng, Xingyi and Li, Pan and Geng, Yangli-ao and Gong, Jing and Li, Shen and Bei, Zhilei and Tan, Xu and Wang, Boyan and Zeng, Xin and others},
  year={2024},
  eprint={2401.06199},
  archivePrefix={arXiv},
  primaryClass={cs.CL},
  note={arXiv preprint arXiv:2401.06199}
}
```