Structural highlights
Function
CCPR_YEAST Destroys radicals which are normally produced within the cells and which are toxic to biological systems.
Publication Abstract from PubMed
It has been demonstrated that the complex of yeast cytochrome c (Cc) and cytochrome c peroxidase (CcP) exists as a delicate equilibrium between a specific, active state and the non-specific, dynamic encounter state. The ortholog of yeast Cc, horse Cc, binds CcP but forms a much more dynamic complex, as demonstrated by NMR spectroscopy. A single conservative mutation of lysine 13 to arginine reduces the dynamics and enhances the specificity. The crystal structure of the stereospecific complex resembles the yeast Cc-CcP complex. In contrast, the K13A mutation increases the dynamic nature of the complex with CcP, showing that specificity in a redox protein complex can depend on the interactions of a single side chain in the binding interface. This article is protected by copyright. All rights reserved. STRUCTURED DIGITAL ABSTRACT: hCc and yCcP bind by nuclear magnetic resonance (1, 2, 3) hCc and yCcP bind by x-ray crystallography (View interaction).
Engineering specificity in a dynamic protein complex with a single conserved mutation.,Bashir Q, Meulenbroek EM, Pannu NS, Ubbink M FEBS J. 2014 Sep 2. doi: 10.1111/febs.13028. PMID:25180929[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Bashir Q, Meulenbroek EM, Pannu NS, Ubbink M. Engineering specificity in a dynamic protein complex with a single conserved mutation. FEBS J. 2014 Sep 2. doi: 10.1111/febs.13028. PMID:25180929 doi:http://dx.doi.org/10.1111/febs.13028