topPTM: a new module of dbPTM for identifying functional post-translational modifications in transmembrane proteins

被引：26

作者：

Su, Min-Gang ^{[1
]}

Huang, Kai-Yao ^{[1
]}

Lu, Cheng-Tsung ^{[1
]}

Kao, Hui-Ju ^{[1
]}

Chang, Ya-Han ^{[1
]}

Lee, Tzong-Yi ^{[1
,2
]}

机构：

[1] Yuan Ze Univ, Dept Comp Sci & Engn, Chungli 320, Taiwan

[2] Yuan Ze Univ, Dept Comp Sci & Engn, Grad Program Biomed Informat, Chungli 320, Taiwan

来源：

NUCLEIC ACIDS RESEARCH | 2014年 / 42卷 / D1期

关键词：

INTEGRAL MEMBRANE-PROTEINS; 5; CCR5; PHOSPHORYLATION; PROTEOMIC ANALYSIS; TERMINAL DOMAIN; AMINO-TERMINUS; DATA-BANK; DATABASE; ACTIVATION; SITES; UBIQUITINATION;

D O I：

10.1093/nar/gkt1221

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Transmembrane (TM) proteins have crucial roles in various cellular processes. The location of post-translational modifications (PTMs) on TM proteins is associated with their functional roles in various cellular processes. Given the importance of PTMs in the functioning of TM proteins, this study developed topPTM (available online at http://topPTM.cse.yzu.edu.tw), a new dbPTM module that provides a public resource for identifying the functional PTM sites on TM proteins with structural topology. Experimentally verified TM topology data were integrated from TMPad, TOPDB, PDBTM and OPM. In addition to the PTMs obtained from dbPTM, experimentally verified PTM sites were manually extracted from research articles by text mining. In an attempt to provide a full investigation of PTM sites on TM proteins, all UniProtKB protein entries containing annotations related to membrane localization and TM topology were considered potential TM proteins. Two effective tools were then used to annotate the structural topology of the potential TM proteins. The TM topology of TM proteins is represented by graphical visualization, as well as by the PTM sites. To delineate the structural correlation between the PTM sites and TM topologies, the tertiary structure of PTM sites on TM proteins was visualized by Jmol program. Given the support of research articles by manual curation and the investigation of domain-domain interactions in Protein Data Bank, 1347 PTM substrate sites are associated with protein-protein interactions for 773 TM proteins. The database content is regularly updated on publication of new data by continuous surveys of research articles and available resources.

引用

页码：D537 / D545

页数：9

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