Structural highlights
Function[RPFB_MYCTO] Factor that stimulates resuscitation of dormant cells. Has peptidoglycan (PG) hydrolytic activity. PG fragments could either directly activate the resuscitation pathway of dormant bacteria or serve as a substrate for endogenous Rpf, resulting in low molecular weight products with resuscitation activity (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 PubMedResuscitation-promoting factor (RPF) proteins reactivate stationary-phase cultures of (G+C)-rich Gram-positive bacteria including the causative agent of tuberculosis, Mycobacterium tuberculosis. We report the solution structure of the RPF domain from M. tuberculosis Rv1009 (RpfB) solved by heteronuclear multidimensional NMR. Structural homology with various glycoside hydrolases suggested that RpfB cleaved oligosaccharides. Biochemical studies indicate that a conserved active site glutamate is important for resuscitation activity. These data, as well as the presence of a clear binding pocket for a large molecule, indicate that oligosaccharide cleavage is probably the signal for revival from dormancy. The structure of a resuscitation-promoting factor domain from Mycobacterium tuberculosis shows homology to lysozymes.,Cohen-Gonsaud M, Barthe P, Bagneris C, Henderson B, Ward J, Roumestand C, Keep NH Nat Struct Mol Biol. 2005 Mar;12(3):270-3. Epub 2005 Feb 20. PMID:15723078[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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