3kw3

Crystal structure of alanine racemase from Bartonella henselae with covalently bound pyridoxal phosphate

spinqualitylabelsall models 3kw3, resolution 2.04Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3kw3 is a 2 chain structure with sequence from Bartonella henselae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.04Å Ligands: LLP Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A0A0H3LZE4_BARHE Catalyzes the interconversion of L-alanine and D-alanine. May also act on other amino acids.[HAMAP-Rule:MF_01201] 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 The Seattle Structural Genomics Center for Infectious Disease (SSGCID) focuses on the structure elucidation of potential drug targets from class A, B, and C infectious disease organisms. Many SSGCID targets are selected because they have homologs in other organisms that are validated drug targets with known structures. Thus, many SSGCID targets are expected to be solved by molecular replacement (MR), and reflective of this, all proteins are expressed in native form. However, many community request targets do not have homologs with known structures and not all internally selected targets readily solve by MR, necessitating experimental phase determination. We have adopted the use of iodide ion soaks and single wavelength anomalous dispersion (SAD) experiments as our primary method for de novo phasing. This method uses existing native crystals and in house data collection, resulting in rapid, low cost structure determination. Iodide ions are non-toxic and soluble at molar concentrations, facilitating binding at numerous hydrophobic or positively charged sites. We have used this technique across a wide range of crystallization conditions with successful structure determination in 16 of 17 cases within the first year of use (94% success rate). Here we present a general overview of this method as well as several examples including SAD phasing of proteins with novel folds and the combined use of SAD and MR for targets with weak MR solutions. These cases highlight the straightforward and powerful method of iodide ion SAD phasing in a high-throughput structural genomics environment. SAD phasing using iodide ions in a high-throughput structural genomics environment.,Abendroth J, Gardberg AS, Robinson JI, Christensen JS, Staker BL, Myler PJ, Stewart LJ, Edwards TE J Struct Funct Genomics. 2011 Jul;12(2):83-95. Epub 2011 Feb 27. PMID:21359836 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Alanine racemase 3D structures

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