Construction of protein backbone pieces using segmentbased FBCCD and Cryo-EM skeleton

Kamal Al Nasr, Jing He

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Cryo-Electron Microscopy is a biophysical technique that generates volumetric images of macromolecules. Although it is hard to distinguish the backbone from the density map at medium resolutions such as 5-10Å, the location of major secondary structure traces and the skeleton can be detected from such density maps. We introduce an effective method to construct pieces of backbone conformations for α-helices, β-strands and loops using α-traces, β-traces and skeleton trace that can be detected from a density map. A test of nineteen cases shows that our fragmentbased FBCCD method can quickly build a model that aligns well with a spline trace with a small RMSD from the native.

Original languageEnglish (US)
Title of host publicationACM BCB 2014 - 5th ACM Conference on Bioinformatics, Computational Biology, and Health Informatics
PublisherAssociation for Computing Machinery
Pages711-716
Number of pages6
ISBN (Electronic)9781450328944
DOIs
StatePublished - Sep 20 2014
Externally publishedYes
Event5th ACM Conference on Bioinformatics, Computational Biology, and Health Informatics, ACM BCB 2014 - Newport Beach, United States
Duration: Sep 20 2014Sep 23 2014

Publication series

NameACM BCB 2014 - 5th ACM Conference on Bioinformatics, Computational Biology, and Health Informatics

Conference

Conference5th ACM Conference on Bioinformatics, Computational Biology, and Health Informatics, ACM BCB 2014
Country/TerritoryUnited States
CityNewport Beach
Period9/20/149/23/14

Keywords

  • Density
  • Electron microscopy
  • Graph
  • Loop
  • Modeling
  • Protein
  • Secondary structure
  • Shortest paths
  • Structure
  • Topology
  • Volume

ASJC Scopus subject areas

  • Health Informatics
  • Computer Science Applications
  • Software
  • Biomedical Engineering

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