ConEVA: a toolbox for comprehensive assessment of protein contacts.

Abstract:

BACKGROUND:In recent years, successful contact prediction methods and contact-guided ab initio protein structure prediction methods have highlighted the importance of incorporating contact information into protein structure prediction methods. It is also observed that for almost all globular proteins, the quality of contact prediction dictates the accuracy of structure prediction. Hence, like many existing evaluation measures for evaluating 3D protein models, various measures are currently used to evaluate predicted contacts, with the most popular ones being precision, coverage and distance distribution score (Xd). RESULTS:We have built a web application and a downloadable tool, ConEVA, for comprehensive assessment and detailed comparison of predicted contacts. Besides implementing existing measures for contact evaluation we have implemented new and useful methods of contact visualization using chord diagrams and comparison using Jaccard similarity computations. For a set (or sets) of predicted contacts, the web application runs even when a native structure is not available, visualizing the contact coverage and similarity between predicted contacts. We applied the tool on various contact prediction data sets and present our findings and insights we obtained from the evaluation of effective contact assessments. ConEVA is publicly available at http://cactus.rnet.missouri.edu/coneva/ . CONCLUSION:ConEVA is useful for a range of contact related analysis and evaluations including predicted contact comparison, investigation of individual protein folding using predicted contacts, and analysis of contacts in a structure of interest.

journal_name

BMC Bioinformatics

journal_title

BMC bioinformatics

authors

Adhikari B,Nowotny J,Bhattacharya D,Hou J,Cheng J

doi

10.1186/s12859-016-1404-z

subject

Has Abstract

pub_date

2016-12-07 00:00:00

pages

517

issue

1

issn

1471-2105

pii

10.1186/s12859-016-1404-z

journal_volume

17

pub_type

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