TSignal: a transformer model for signal peptide prediction.
TSignal: a transformer model for signal peptide prediction.
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DOI:
10.1093/bioinformatics/btad228
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发表时间:
2023-06-30
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影响因子:
--
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--
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Signal peptides (SPs) are short amino acid segments present at the N-terminus of newly synthesized proteins that facilitate protein translocation into the lumen of the endoplasmic reticulum, after which they are cleaved off. Specific regions of SPs influence the efficiency of protein translocation, and small changes in their primary structure can abolish protein secretion altogether. The lack of conserved motifs across SPs, sensitivity to mutations, and variability in the length of the peptides make SP prediction a challenging task that has been extensively pursued over the years. We introduce TSignal, a deep transformer-based neural network architecture that utilizes BERT language models and dot-product attention techniques. TSignal predicts the presence of SPs and the cleavage site between the SP and the translocated mature protein. We use common benchmark datasets and show competitive accuracy in terms of SP presence prediction and state-of-the-art accuracy in terms of cleavage site prediction for most of the SP types and organism groups. We further illustrate that our fully data-driven trained model identifies useful biological information on heterogeneous test sequences. TSignal is available at: https://github.com/Dumitrescu-Alexandru/TSignal.
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影响因子:
14.9
作者:
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通讯作者:
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7.7
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4.3
作者:
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通讯作者:
Noble WS
DOI:
10.1109/tpami.2021.3095381
发表时间:
2022-10-01
影响因子:
23.6
作者:
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通讯作者:
Rost, Burkhard
影响因子:
14.9
作者:
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通讯作者:
Xenarios I