4nf1

Structure of N-acetyltransferase domain of X. fastidiosa NAGS/K without his-tag

spinqualitylabelsall models 4nf1, resolution 1.40Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 4nf1 is a 8 chain structure with sequence from Xylella fastidiosa Temecula1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.3986Å Ligands: CL, GOL, NLG Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function ARGB_XYLFT Publication Abstract from PubMed Structures of the catalytic N-acetyltransferase (NAT) domain of the bifunctional N-acetyl-L-glutamate synthase/kinase (NAGS/K) from Xylella fastidiosa bound to N-acetyl-L-glutamate (NAG) with and without an N-terminal His tag have been solved and refined at 1.7 and 1.4 A resolution, respectively. The NAT domain with an N-terminal His tag crystallized in space group P41212, with unit-cell parameters a = b = 51.72, c = 242.31 A. Two subunits form a molecular dimer in the asymmetric unit, which contains approximately 41% solvent. The NAT domain without an N-terminal His tag crystallized in space group P21, with unit-cell parameters a = 63.48, b = 122.34, c = 75.88 A, beta = 107.6 degrees . Eight subunits, which form four molecular dimers, were identified in the asymmetric unit, which contains approximately 38% solvent. The structures with and without the N-terminal His tag provide an opportunity to evaluate how the His tag affects structure and function. Furthermore, multiple subunits in different packing environments allow an assessment of the plasticity of the NAG binding site, which might be relevant to substrate binding and product release. The dimeric structure of the X. fastidiosa N-acetytransferase (xfNAT) domain is very similar to that of human N-acetyltransferase (hNAT), reinforcing the notion that mammalian NAGS is evolutionally derived from bifunctional bacterial NAGS/K. Structures of the N-acetyltransferase domain of Xylella fastidiosaN-acetyl-L-glutamate synthase/kinase with and without a His tag bound to N-acetyl-L-glutamate.,Zhao G, Jin Z, Allewell NM, Tuchman M, Shi D Acta Crystallogr F Struct Biol Commun. 2015 Jan 1;71(Pt 1):86-95. doi:, 10.1107/S2053230X14026788. Epub 2015 Jan 1. PMID:25615976 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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