2ai9 | pdb_00002ai9

S.aureus Polypeptide Deformylase

spinqualitylabelsall models 2ai9, resolution 2.50Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2ai9 is a 2 chain structure with sequence from "micrococcus_aureus"_(rosenbach_1884)_zopf_1885 "micrococcus aureus" (rosenbach 1884) zopf 1885. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: NI, SO4 Related: 2ai7, 2ai8, 2aia, 2aie Gene: def, def1, pdf1 ("Micrococcus aureus" (Rosenbach 1884) Zopf 1885) Activity: Peptide deformylase, with EC number 3.5.1.88 Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum Function [DEF_STAAU] 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 (By similarity).[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 Polypeptide deformylase (PDF) catalyzes the deformylation of polypeptide chains in bacteria. It is essential for bacterial cell viability and is a potential antibacterial drug target. Here, we report the crystal structures of polypeptide deformylase from four different species of bacteria: Streptococcus pneumoniae, Staphylococcus aureus, Haemophilus influenzae, and Escherichia coli. Comparison of these four structures reveals significant overall differences between the two Gram-negative species (E. coli and H. influenzae) and the two Gram-positive species (S. pneumoniae and S. aureus). Despite these differences and low overall sequence identity, the S1' pocket of PDF is well conserved among the four enzymes studied. We also describe the binding of nonpeptidic inhibitor molecules SB-485345, SB-543668, and SB-505684 to both S. pneumoniae and E. coli PDF. Comparison of these structures shows similar binding interactions with both Gram-negative and Gram-positive species. Understanding the similarities and subtle differences in active site structure between species will help to design broad-spectrum polypeptide deformylase inhibitor molecules. Structural variation and inhibitor binding in polypeptide deformylase from four different bacterial species.,Smith KJ, Petit CM, Aubart K, Smyth M, McManus E, Jones J, Fosberry A, Lewis C, Lonetto M, Christensen SB Protein Sci. 2003 Feb;12(2):349-60. PMID:12538898 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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