J 2016

Hammock: a hidden Markov model-based peptide clustering algorithm to identify protein-interaction consensus motifs in large datasets

KREJČÍ, Adam, TR HUPP, Matej LEXA, Bořivoj VOJTĚŠEK, Petr MÜLLER et. al.

Basic information

Original name

Hammock: a hidden Markov model-based peptide clustering algorithm to identify protein-interaction consensus motifs in large datasets

Authors

KREJČÍ, Adam (203 Czech Republic), TR HUPP (826 United Kingdom of Great Britain and Northern Ireland), Matej LEXA (703 Slovakia, belonging to the institution), Bořivoj VOJTĚŠEK (203 Czech Republic) and Petr MÜLLER (203 Czech Republic)

Edition

Bioinformatics, Oxford, Oxford University Press, 2016, 1367-4803

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10201 Computer sciences, information science, bioinformatics

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 7.307

RIV identification code

RIV/00216224:14330/16:00089377

Organization unit

Faculty of Informatics

UT WoS

000368357800002

Keywords in English

phage display; sequence logo; clustering;

Tags

International impact, Reviewed
Změněno: 13/3/2018 14:02, doc. Ing. Matej Lexa, Ph.D.

Abstract

V originále

Motivation: Proteins often recognize their interaction partners on the basis of short linear motifs located in disordered regions on proteins' surface. Experimental techniques that study such motifs use short peptides to mimic the structural properties of interacting proteins. Continued development of these methods allows for large-scale screening, resulting in vast amounts of peptide sequences, potentially containing information on multiple protein-protein interactions. Processing of such datasets is a complex but essential task for large-scale studies investigating protein-protein interactions. Results: The software tool presented in this article is able to rapidly identify multiple clusters of sequences carrying shared specificity motifs in massive datasets from various sources and generate multiple sequence alignments of identified clusters. The method was applied on a previously published smaller dataset containing distinct classes of ligands for SH3 domains, as well as on a new, an order of magnitude larger dataset containing epitopes for several monoclonal antibodies. The software successfully identified clusters of sequences mimicking epitopes of antibody targets, as well as secondary clusters revealing that the antibodies accept some deviations from original epitope sequences. Another test indicates that processing of even much larger datasets is computationally feasible.