The solution structures of calmodulin and its complexes with synthetic peptides based on target enzyme binding domains - PubMed (original) (raw)

Review

The solution structures of calmodulin and its complexes with synthetic peptides based on target enzyme binding domains

J Trewhella. Cell Calcium. 1992 Jun-Jul.

Abstract

Small-angle X-ray and neutron scattering experiments have given important information on the solution structures of calmodulin and its complexes with synthetic peptides used to model target enzyme interactions. In combination with crystallographic data, site directed mutagenesis and various spectroscopic studies, these experiments have contributed to our understanding of the solution structure of calmodulin in different functional states. We have gained important insights into the conformational flexibility in calmodulin that appears to be crucial to its regulatory functions. Specifically, flexibility in the interconnecting helix region of calmodulin has been shown to play a critical role in facilitating calmodulin's binding to a wide variety of target enzymes whose activities are thus regulated. This review will focus mainly on the contributions small-angle scattering has made to our understanding of the solution structure of calmodulin in the context of other studies, with particular regard to circular dichroism and Fourier transform infrared studies that complement the small-angle scattering data.

PubMed Disclaimer

Similar articles

Cited by

Publication types

MeSH terms

Substances