2ah4 | pdb_00002ah4

guanidinobenzoyl-trypsin acyl-enzyme at 1.13 A resolution

spinqualitylabelsall models 2ah4, resolution 1.13Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2ah4 is a 1 chain structure with sequence from Bos taurus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: CA, GBS, SO4 Related: 2age, 2agg, 2agi Activity: Trypsin, with EC number 3.4.21.4 Resources: FirstGlance, OCA, RCSB, PDBsum 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 Atomic resolution structures of trypsin acyl-enzymes and a tetrahedral intermediate analog, along with previously solved structures representing the Michaelis complex, are used to reconstruct events in the catalytic cycle of this classic serine protease. Structural comparisons provide insight into active site adjustments involved in catalysis. Subtle motions of the catalytic serine and histidine residues coordinated with translation of the substrate reaction center are seen to favor the forward progress of the acylation reaction. The structures also clarify the attack trajectory of the hydrolytic water in the deacylation reaction. Insights into the serine protease mechanism from atomic resolution structures of trypsin reaction intermediates.,Radisky ES, Lee JM, Lu CJ, Koshland DE Jr Proc Natl Acad Sci U S A. 2006 May 2;103(18):6835-40. Epub 2006 Apr 24. PMID:16636277 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Trypsin

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