3khi

Crystal structure of a Putative Metal-dependent Hydrolase (YP_001336084.1) from Klebsiella pneumoniae subsp. pneumoniae MGH 78578 at 1.95 A resolution

spinqualitylabelsall models 3khi, resolution 1.95Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3khi is a 1 chain structure with sequence from Klebsiella pneumoniae subsp. pneumoniae MGH 78578. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.95Å Ligands: CL, EDO, MSE, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function MTFA_KLEP7 Involved in the regulation of ptsG expression by binding and inactivating Mlc (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 MtfA of Escherichia coli (formerly YeeI) was previously identified as a regulator of the phosphoenolpyruvate (PEP)-dependent:glucose phosphotransferase system. MtfA homolog proteins are highly conserved, especially among beta- and gammaproteobacteria. We determined the crystal structures of the full-length MtfA apoenzyme from Klebsiella pneumoniae and its complex with zinc (holoenzyme) at 2.2 and 1.95 A, respectively. MtfA contains a conserved H(149)E(150)XXH(153)+E(212)+Y(205) metallopeptidase motif. The presence of zinc in the active site induces significant conformational changes in the region around Tyr205 compared to the conformation of the apoenzyme. Additionally, the zinc-bound MtfA structure is in a self-inhibitory conformation where a region that was disordered in the unliganded structure is now observed in the active site and a nonproductive state of the enzyme is formed. MtfA is related to the catalytic domain of the anthrax lethal factor and the Mop protein involved in the virulence of Vibrio cholerae, with conservation in both overall structure and in the residues around the active site. These results clearly provide support for MtfA as a prototypical zinc metallopeptidase (gluzincin clan). The Structure of Mlc Titration Factor A (MtfA/YeeI) Reveals a Prototypical Zinc Metallopeptidase Related to Anthrax Lethal Factor.,Xu Q, Gohler AK, Kosfeld A, Carlton D, Chiu HJ, Klock HE, Knuth MW, Miller MD, Elsliger MA, Deacon AM, Godzik A, Lesley SA, Jahreis K, Wilson IA J Bacteriol. 2012 Jun;194(11):2987-99. Epub 2012 Mar 30. PMID:22467785 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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