rna-fm 0.2.1

RNA Foundation Model (rna-fm): Pretrained language models for RNAs. From CUHK AIH Lab.

RNA-FM

Update March 2024: mRNA-FM, a foundation model pre-trained on coding sequences (CDS) in mRNA is now released! The model can take into CDSs and represent them with contextual embeddings, benefiting mRNA and protein related tasks.

This repository contains codes and pre-trained models for RNA foundation model (RNA-FM). RNA-FM outperforms all tested single-sequence RNA language models across a variety of structure prediction tasks as well as several function-related tasks. You can find more details about RNA-FM in our paper, "Interpretable RNA Foundation Model from Unannotated Data for Highly Accurate RNA Structure and Function Predictions" (Chen et al., 2022).

Citation

@article{chen2022interpretable,
  title={Interpretable rna foundation model from unannotated data for highly accurate rna structure and function predictions},
  author={Chen, Jiayang and Hu, Zhihang and Sun, Siqi and Tan, Qingxiong and Wang, Yixuan and Yu, Qinze and Zong, Licheng and Hong, Liang and Xiao, Jin and King, Irwin and others},
  journal={arXiv preprint arXiv:2204.00300},
  year={2022}
}

Table of contents

• Setup Environment
• Pre-trained Models
• Usage
  • RNA-FM Embedding Generation
  • RNA Secondary Structure Prediction
  • Server
  • Quick Start
• Related RNA Language Models
• Citations
• License

Create Environment with Conda

First, download the repository and create the environment.

git clone https://github.com/ml4bio/RNA-FM.git
cd ./RNA-FM
conda env create -f environment.yml

Then, activate the "RNA-FM" environment and enter into the workspace.

conda activate RNA-FM
cd ./redevelop

Access pre-trained models.

Download pre-trained models from this gdrive link and place the pth files into the pretrained folder.

Apply RNA-FM with Existing Scripts.

1. Embedding Extraction.

python launch/predict.py --config="pretrained/extract_embedding.yml" \
--data_path="./data/examples/example.fasta" --save_dir="./resuts" \
--save_frequency 1 --save_embeddings

RNA-FM embeddings with shape of (L,640) will be saved in the $save_dir/representations.

As For mRNA-FM, you can call it with an extra argument, MODEL.BACKBONE_NAME:

python launch/predict.py --config="pretrained/extract_embedding.yml" \
--data_path="./data/examples/example.fasta" --save_dir="./resuts" \
--save_frequency 1 --save_embeddings --save_embeddings_format raw MODEL.BACKBONE_NAME mrna-fm

2. Downstream Prediction - RNA secondary structure.

python launch/predict.py --config="pretrained/ss_prediction.yml" \
--data_path="./data/examples/example.fasta" --save_dir="./resuts" \
--save_frequency 1

The predicted probability maps will be saved in form of .npy files, and the post-processed binary predictions will be saved in form of .ct files. You can find them in the $save_dir/r-ss.

3. Online Version - RNA-FM server.

If you have any trouble with the deployment of the local version of RNA-FM, you can access its online version from this link, RNA-FM server. You can easily submit jobs on the server and download results from it afterwards, without setting up environment and occupying any computational resources.

Quick Start for Further Development.

PyTorch is the prerequisite package which you must have installed to use this repository. You can install rna-fm in your own environment with the following pip command if you just want to use the pre-trained language model. you can either install rna-fm from PIPY:

pip install rna-fm

or install rna-fm from github:

cd ./RNA-FM
pip install .

After installation, you can load the RNA-FM and extract its embeddings with the following code:

import torch
import fm

# Load RNA-FM model
model, alphabet = fm.pretrained.rna_fm_t12()
batch_converter = alphabet.get_batch_converter()
model.eval()  # disables dropout for deterministic results

# Prepare data
data = [
    ("RNA1", "GGGUGCGAUCAUACCAGCACUAAUGCCCUCCUGGGAAGUCCUCGUGUUGCACCCCU"),
    ("RNA2", "GGGUGUCGCUCAGUUGGUAGAGUGCUUGCCUGGCAUGCAAGAAACCUUGGUUCAAUCCCCAGCACUGCA"),
    ("RNA3", "CGAUUCNCGUUCCC--CCGCCUCCA"),
]
batch_labels, batch_strs, batch_tokens = batch_converter(data)

# Extract embeddings (on CPU)
with torch.no_grad():
    results = model(batch_tokens, repr_layers=[12])
token_embeddings = results["representations"][12]

More tutorials can be found from https://ml4bio.github.io/RNA-FM/. The related notebooks are stored in the tutorials folder.

As for mRNA-FM, the above code needs a slight revision. To be noted, the length of input RNA sequences should be the multiple of 3 to ensure the sequence can be tokenized into a series of codons (3-mer).

import torch
import fm

# Load mRNA-FM model
model, alphabet = fm.pretrained.mrna_fm_t12()
batch_converter = alphabet.get_batch_converter()
model.eval()  # disables dropout for deterministic results

# Prepare data
data = [
    ("CDS1", "AUGGGGUGCGAUCAUACCAGCACUAAUGCCCUCCUGGGAAGUCCUCGUGUUGCACCCCUA"),
    ("CDS2", "AUGGGGUGUCGCUCAGUUGGUAGAGUGCUUGCCUGGCAUGCAAGAAACCUUGGUUCAAUCCCCAGCACUGCA"),
    ("CDS3", "AUGCGAUUCNCGUUCCC--CCGCCUCC"),
]
batch_labels, batch_strs, batch_tokens = batch_converter(data)

# Extract embeddings (on CPU)
with torch.no_grad():
    results = model(batch_tokens, repr_layers=[12])
token_embeddings = results["representations"][12]

Related RNA Language Models (BERT-style)

Shorthand	Code	Subject	Layers	Embed Dim	Max Length	Input	Token	Dataset	Description	Year	Publisher
RNA-FM	Yes	ncRNA	12	640	1024	Seq	base	RNAcentral 19 (23 million samples)	The first RNA language model for general purpose	2022.04	arxiv/bioRxiv
RNABERT	Yes	ncRNA	6	120	440	Seq	base	RNAcentral (762370) & Rfam 14.3 dataset (trained with partial MSA）	Specialized in structural alignment and clustering	2022.02	NAR Genomics and Bioinformatics
UNI-RNA	No	RNA	24	1280	$\infty$	Seq	base	RNAcentral & nt & GWH (1 billion)	A general model with larger scale and datasets than RNA-FM	2023.07	bioRxiv
RNA-MSM	Yes	ncRNA	12	768	1024	MSA	base	4069 RNA families from Rfam 14.7	A model utilize evolutionary information from MSA directly	2023.03	NAR
SpliceBERT	Yes	pre-mRNA	6	1024	512	Seq	base	2 million precursor messenger RNA (pre-mRNA)	Specialized in RNA splicing of pre-mRNA	2023.05	bioRxiv
CodonBERT	No	mRNA CDS	12	768	512*2	Seq	codon (3mer)	10 million mRNAs from NCBI	Only focus on CDS of mRNA without UTRs	2023.09	bioRxiv
UTR-LM	Yes	mRNA 5'UTR	6	128	$\infty$	Seq	base	700K 5'UTRs from Ensembl & eGFP & mCherry & Cao	Used for 5'UTR and mRNA expression related tasks	2023.10	bioRxiv
3UTRBERT	Yes	mRNA 3'UTR	12	768	512	Seq	k-mer	20,362 3'UTRs	Used for 3'UTR mediated gene regulation tasks	2023.09	bioRxiv
BigRNA	No	DNA	-	-	-	Seq	-	thousands of genome-matched datasets	tissue-specific RNA expression, splicing, microRNA sites, and RNA binding protein	2023.09	bioRxiv

Citations

If you find the models useful in your research, we ask that you cite the relevant paper:

For RNA-FM:

@article{chen2022interpretable,
  title={Interpretable rna foundation model from unannotated data for highly accurate rna structure and function predictions},
  author={Chen, Jiayang and Hu, Zhihang and Sun, Siqi and Tan, Qingxiong and Wang, Yixuan and Yu, Qinze and Zong, Licheng and Hong, Liang and Xiao, Jin and King, Irwin and others},
  journal={arXiv preprint arXiv:2204.00300},
  year={2022}
}

The model of this code builds on the esm sequence modeling framework. And we use fairseq sequence modeling framework to train our RNA language modeling. We very appreciate these two excellent works!

License

This source code is licensed under the MIT license found in the LICENSE file in the root directory of this source tree.