Fungi-Kcr: a language model for predicting lysine crotonylation in pathogenic fungal proteins

IntroductionLysine crotonylation (Kcr) is an important post-translational modification (PTM) of proteins, playing a key role in regulating various biological processes in pathogenic fungi. However, the experimental identification of Kcr sites remains challenging due to the high cost and time-consumi...

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Main Authors: Yong-Zi Chen, Xiaofeng Wang, Zhuo-Zhi Wang, Haixin Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-07-01
Series:Frontiers in Cellular and Infection Microbiology
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Online Access:https://www.frontiersin.org/articles/10.3389/fcimb.2025.1615443/full
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author Yong-Zi Chen
Yong-Zi Chen
Xiaofeng Wang
Zhuo-Zhi Wang
Haixin Li
Haixin Li
author_facet Yong-Zi Chen
Yong-Zi Chen
Xiaofeng Wang
Zhuo-Zhi Wang
Haixin Li
Haixin Li
author_sort Yong-Zi Chen
collection DOAJ
description IntroductionLysine crotonylation (Kcr) is an important post-translational modification (PTM) of proteins, playing a key role in regulating various biological processes in pathogenic fungi. However, the experimental identification of Kcr sites remains challenging due to the high cost and time-consuming nature of mass spectrometry-based techniques.MethodsTo address this limitation, we developed Fungi-Kcr, a deep learning-based model designed to predict Kcr modification sites in fungal proteins. The model integrates convolutional neural networks (CNN), gated recurrent units (GRU), and word embedding to effectively capture both local and long-range sequence dependencies.ResultsComprehensive evaluations, including ten-fold cross-validation and independent testing, demonstrate that Fungi-Kcr achieves superior predictive performance compared to conventional machine learning models. Moreover, our results indicate that a general predictive model performs better than species-specific models. DiscussionThe proposed model provides a valuable computational tool for the large-scale identification of Kcr sites, contributing to a deeper understanding of fungal pathogenesis and potential therapeutic targets. The source code and dataset for Fungi-Kcr are available at https://github.com/zayra77/Fungi-Kcr.
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language English
publishDate 2025-07-01
publisher Frontiers Media S.A.
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series Frontiers in Cellular and Infection Microbiology
spelling doaj-art-0ca899c193e14f57aef18df9a61ae8392025-08-20T03:50:40ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882025-07-011510.3389/fcimb.2025.16154431615443Fungi-Kcr: a language model for predicting lysine crotonylation in pathogenic fungal proteinsYong-Zi Chen0Yong-Zi Chen1Xiaofeng Wang2Zhuo-Zhi Wang3Haixin Li4Haixin Li5Cancer Biobank, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin, ChinaKey Laboratory of Molecular Cancer Epidemiology, Tianjin’s Clinical Research Center for Cancer, Tianjin, ChinaCollege of Mathematics and Computer Sciences, Shanxi Normal University, Taiyuan, ChinaSchool of Biomedical Engineering, Tianjin Medical University, Tianjin, ChinaCancer Biobank, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin, ChinaKey Laboratory of Molecular Cancer Epidemiology, Tianjin’s Clinical Research Center for Cancer, Tianjin, ChinaIntroductionLysine crotonylation (Kcr) is an important post-translational modification (PTM) of proteins, playing a key role in regulating various biological processes in pathogenic fungi. However, the experimental identification of Kcr sites remains challenging due to the high cost and time-consuming nature of mass spectrometry-based techniques.MethodsTo address this limitation, we developed Fungi-Kcr, a deep learning-based model designed to predict Kcr modification sites in fungal proteins. The model integrates convolutional neural networks (CNN), gated recurrent units (GRU), and word embedding to effectively capture both local and long-range sequence dependencies.ResultsComprehensive evaluations, including ten-fold cross-validation and independent testing, demonstrate that Fungi-Kcr achieves superior predictive performance compared to conventional machine learning models. Moreover, our results indicate that a general predictive model performs better than species-specific models. DiscussionThe proposed model provides a valuable computational tool for the large-scale identification of Kcr sites, contributing to a deeper understanding of fungal pathogenesis and potential therapeutic targets. The source code and dataset for Fungi-Kcr are available at https://github.com/zayra77/Fungi-Kcr.https://www.frontiersin.org/articles/10.3389/fcimb.2025.1615443/fulllysine crotonylationfungal proteinslanguage modelpathogenpost-translational modifications
spellingShingle Yong-Zi Chen
Yong-Zi Chen
Xiaofeng Wang
Zhuo-Zhi Wang
Haixin Li
Haixin Li
Fungi-Kcr: a language model for predicting lysine crotonylation in pathogenic fungal proteins
Frontiers in Cellular and Infection Microbiology
lysine crotonylation
fungal proteins
language model
pathogen
post-translational modifications
title Fungi-Kcr: a language model for predicting lysine crotonylation in pathogenic fungal proteins
title_full Fungi-Kcr: a language model for predicting lysine crotonylation in pathogenic fungal proteins
title_fullStr Fungi-Kcr: a language model for predicting lysine crotonylation in pathogenic fungal proteins
title_full_unstemmed Fungi-Kcr: a language model for predicting lysine crotonylation in pathogenic fungal proteins
title_short Fungi-Kcr: a language model for predicting lysine crotonylation in pathogenic fungal proteins
title_sort fungi kcr a language model for predicting lysine crotonylation in pathogenic fungal proteins
topic lysine crotonylation
fungal proteins
language model
pathogen
post-translational modifications
url https://www.frontiersin.org/articles/10.3389/fcimb.2025.1615443/full
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