Design of net-charged abc-type collagen heterotrimers

J Struct Biol. 2014 Feb;185(2):163-7. doi: 10.1016/j.jsb.2013.04.006. Epub 2013 Apr 18.

Abstract

Net-negatively-charged heterospecific A:B:C collagen peptide heterotrimers were designed using an automated computational approach. The design algorithm considers both target stability and the energy gap between the target states and misfolded competing states. Structural characterization indicates the net-negative charge balance on the new designs enhances the specificity of the target state at the expense of its stability.

Keywords: Collagen; Electrostatics; Protein design; Triple-helix.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Amino Acid Sequence
  • Collagen Type III / chemistry*
  • Collagen Type VI / chemistry*
  • Computer Simulation
  • Models, Molecular
  • Molecular Sequence Data
  • Protein Binding
  • Protein Engineering
  • Protein Multimerization
  • Protein Stability
  • Protein Structure, Quaternary
  • Protein Structure, Secondary

Substances

  • Collagen Type III
  • Collagen Type VI