3ez8

Crystal Structure of endoglucanase Cel9A from the thermoacidophilic Alicyclobacillus acidocaldarius

spinqualitylabelsall models 3ez8, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 3ez8 is a 1 chain structure with sequence from Alicyclobacillus acidocaldarius. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: CA, MPD, ZN Related: 1clc, 1rq5 Gene: celA (Alicyclobacillus acidocaldarius) Activity: Cellulase, with EC number 3.2.1.4 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 The production of biofuels using biomass is an alternative route to support the growing global demand for energy and to also reduce the environmental problems caused by the burning of fossil fuels. Cellulases are likely to play an important role in the degradation of biomass and the production of sugars for subsequent fermentation to fuel. Here, the crystal structure of an endoglucanase, Cel9A, from Alicyclobacillus acidocaldarius (Aa_Cel9A) is reported which displays a modular architecture composed of an N-terminal Ig-like domain connected to the catalytic domain. This paper describes the overall structure and the detailed contacts between the two modules. Analysis suggests that the interaction involving the residues Gln13 (from the Ig-like module) and Phe439 (from the catalytic module) is important in maintaining the correct conformation of the catalytic module required for protein activity. Moreover, the Aa_Cel9A structure shows three metal-binding sites that are associated with the thermostability and/or substrate affinity of the enzyme. Structure of endoglucanase Cel9A from the thermoacidophilic Alicyclobacillus acidocaldarius.,Pereira JH, Sapra R, Volponi JV, Kozina CL, Simmons B, Adams PD Acta Crystallogr D Biol Crystallogr. 2009 Aug;65(Pt 8):744-50. Epub 2009, Jul 10. PMID:19622857 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Glucanase

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