Structural highlights
Function
[RUVA_MYCTU] The RuvA-RuvB complex in the presence of ATP renatures cruciform structure in supercoiled DNA with palindromic sequence, indicating that it may promote strand exchange reactions in homologous recombination. RuvAB is a helicase that mediates the Holliday junction migration by localized denaturation and reannealing. RuvA stimulates, in the presence of DNA, the weak ATPase activity of RuvB (By similarity).
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The process of recombinational repair is crucial for maintaining genomic integrity and generating biological diversity. In association with RuvB and RuvC, RuvA plays a central role in processing and resolving Holliday junctions, which are a critical intermediate in homologous recombination. Here, the cloning, purification and structure determination of the RuvA protein from Mycobacterium tuberculosis (MtRuvA) are reported. Analysis of the structure and comparison with other known RuvA proteins reveal an octameric state with conserved subunit-subunit interaction surfaces, indicating the requirement of octamer formation for biological activity. A detailed analysis of plasticity in the RuvA molecules has led to insights into the invariant and variable regions, thus providing a framework for understanding regional flexibility in various aspects of RuvA function.
Structure of Mycobacterium tuberculosis RuvA, a protein involved in recombination.,Prabu JR, Thamotharan S, Khanduja JS, Alipio EZ, Kim CY, Waldo GS, Terwilliger TC, Segelke B, Lekin T, Toppani D, Hung LW, Yu M, Bursey E, Muniyappa K, Chandra NR, Vijayan M Acta Crystallogr Sect F Struct Biol Cryst Commun. 2006 Aug 1;62(Pt, 8):731-4. Epub 2006 Jul 24. PMID:16880543[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Prabu JR, Thamotharan S, Khanduja JS, Alipio EZ, Kim CY, Waldo GS, Terwilliger TC, Segelke B, Lekin T, Toppani D, Hung LW, Yu M, Bursey E, Muniyappa K, Chandra NR, Vijayan M. Structure of Mycobacterium tuberculosis RuvA, a protein involved in recombination. Acta Crystallogr Sect F Struct Biol Cryst Commun. 2006 Aug 1;62(Pt, 8):731-4. Epub 2006 Jul 24. PMID:16880543 doi:10.1107/S1744309106024791
