4me4 | pdb_00004me4

Metallo-enzyme from P. marina

spinqualitylabelsall models 4me4, resolution 2.55Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4me4 is a 2 chain structure with sequence from Permh. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: 5GP, FE, IMD, SIN Related: 4mcw, 4mdz Gene: PERMA_0986 (PERMH) Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Bis-(3',5') cyclic di-guanylate (c-di-GMP) is a key bacterial second messenger that is implicated in the regulation of many crucial processes that include biofilm formation, motility and virulence. Cellular levels of c-di-GMP are controlled through synthesis by GGDEF domain diguanylate cyclases and degradation by two classes of phosphodiesterase with EAL or HD-GYP domains. Here, we have determined the structure of an enzymatically active HD-GYP domain protein from Persephonella marina (PmGH) alone, in complex with substrate (c-di-GMP) and final reaction product (GMP). The structures reveal a novel trinuclear iron binding site, which is implicated in catalysis and identify residues involved in recognition of c-di-GMP. This structure completes the picture of all domains involved in c-di-GMP metabolism and reveals that the HD-GYP family splits into two distinct subgroups containing bi- and trinuclear metal centres. Crystal structure of an HD-GYP domain cyclic-di-GMP phosphodiesterase reveals an enzyme with a novel trinuclear catalytic iron centre.,Bellini D, Caly DL, McCarthy Y, Bumann M, An SQ, Dow JM, Ryan RP, Walsh MA Mol Microbiol. 2014 Jan;91(1):26-38. doi: 10.1111/mmi.12447. Epub 2013 Nov 24. PMID:24176013 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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