1icj

PDF PROTEIN IS CRYSTALLIZED AS NI2+ CONTAINING FORM, COCRYSTALLIZED WITH INHIBITOR POLYETHYLENE GLYCOL (PEG)PDF PROTEIN IS CRYSTALLIZED AS NI2+ CONTAINING FORM, COCRYSTALLIZED WITH INHIBITOR POLYETHYLENE GLYCOL (PEG)

Structural highlights 1icj is a 3 chain structure with sequence from Ecoli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: , , Gene: DEF (ECOLI) Activity: Formylmethionine deformylase, with EC number 3.5.1.31 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Function [DEF_ECOLI] Removes the formyl group from the N-terminal Met of newly synthesized proteins. Requires at least a dipeptide for an efficient rate of reaction. N-terminal L-methionine is a prerequisite for activity but the enzyme has broad specificity at other positions.[HAMAP-Rule:MF_00163] 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 Peptide deformylase is an essential metalloenzyme required for the removal of the formyl group at the N terminus of nascent polypeptide chains in eubacteria. The Escherichia coli enzyme uses Fe2+ and nearly retains its activity on substitution of the metal ion by Ni2+. We have solved the structure of the Ni2+ enzyme at 1.9-A resolution by x-ray crystallography. Each of the three monomers in the asymmetric unit contains one Ni2+ ion and, in close proximity, one molecule of polyethylene glycol. Polyethylene glycol is shown to be a competitive inhibitor with a KI value of 6 mM with respect to formylmethionine under conditions similar to those used for crystallization. We have also solved the structure of the inhibitor-free enzyme at 2.5-A resolution. The two structures are identical within the estimated errors of the models. The hydrogen bond network stabilizing the active site involves nearly all conserved amino acid residues and well defined water molecules, one of which ligates to the tetrahedrally coordinated Ni2+ ion. Structure of peptide deformylase and identification of the substrate binding site.,Becker A, Schlichting I, Kabsch W, Schultz S, Wagner AF J Biol Chem. 1998 May 8;273(19):11413-6. PMID:9565550 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

spinqualitylabelsall models 1icj, resolution 1.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image