1wb5
S954A MUTANT OF THE FERULOYL ESTERASE MODULE FROM CLOSTRIDIUM THERMOCELLUM COMPLEXED WITH SYRINGATE
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OverviewOverview
Feruloyl esterases play a key role in the degradation of the intricate, structure of the plant cell wall by hydrolysing the ferulate ester groups, involved in the cross-linking between hemicelluloses and between, hemicellulose and lignin. The structure of the feruloyl esterase module of, Clostridium thermocellum cellulosomal xylanase 10B has been reported, previously. It displays the alpha/beta hydrolase fold with a classical, Ser-His-Asp catalytic triad. Here, the structures of a Ser-Ala mutant of, this feruloyl esterase in complexes with methyl syringate, methyl, sinapinate and methyl vanillate are described. Substrate binding is, accompanied by subtle conformational changes at amino acids Trp982, Met955, Asn1023 and Ile1019 in the ligand-binding cavity. The structural, determinants, ... [(full description)]
About this StructureAbout this Structure
1WB5 is a [Single protein] structure of sequence from [Clostridium thermocellum] with ACT, CD, SYR and GOL as [ligands]. Active as [Endo-1,4-beta-xylanase], with EC number [3.2.1.8]. Structure known Active Site: AC1. Full crystallographic information is available from [OCA].
ReferenceReference
Molecular determinants of substrate specificity in the feruloyl esterase module of xylanase 10B from Clostridium thermocellum., Tarbouriech N, Prates JA, Fontes CM, Davies GJ, Acta Crystallogr D Biol Crystallogr. 2005 Feb;61(Pt 2):194-7. Epub 2005, Jan 19. PMID:15681871
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