1wb6: Difference between revisions
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[[Image:1wb6.gif|left|200px]] | [[Image:1wb6.gif|left|200px]] | ||
'''S954A MUTANT OF THE FERULOYL ESTERASE MODULE FROM CLOSTRIDIUM THERMOCELLUM COMPLEXED WITH VANILLATE''' | {{Structure | ||
|PDB= 1wb6 |SIZE=350|CAPTION= <scene name='initialview01'>1wb6</scene>, resolution 1.40Å | |||
|SITE= <scene name='pdbsite=AC1:Cd+Binding+Site+For+Chain+A'>AC1</scene> | |||
|LIGAND= <scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=CD:CADMIUM+ION'>CD</scene>, <scene name='pdbligand=VXX:VANILLATE'>VXX</scene> and <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene> | |||
|ACTIVITY= [http://en.wikipedia.org/wiki/Endo-1,4-beta-xylanase Endo-1,4-beta-xylanase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.8 3.2.1.8] | |||
|GENE= | |||
}} | |||
'''S954A MUTANT OF THE FERULOYL ESTERASE MODULE FROM CLOSTRIDIUM THERMOCELLUM COMPLEXED WITH VANILLATE''' | |||
==Overview== | ==Overview== | ||
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==About this Structure== | ==About this Structure== | ||
1WB6 is a [ | 1WB6 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Clostridium_thermocellum Clostridium thermocellum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1WB6 OCA]. | ||
==Reference== | ==Reference== | ||
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:[http:// | 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:[http://www.ncbi.nlm.nih.gov/pubmed/15681871 15681871] | ||
[[Category: Clostridium thermocellum]] | [[Category: Clostridium thermocellum]] | ||
[[Category: Endo-1,4-beta-xylanase]] | [[Category: Endo-1,4-beta-xylanase]] | ||
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[[Category: xylanase]] | [[Category: xylanase]] | ||
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 14:54:40 2008'' | ||
Revision as of 15:54, 20 March 2008
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| , resolution 1.40Å | |||||||
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| Sites: | |||||||
| Ligands: | , , and | ||||||
| Activity: | Endo-1,4-beta-xylanase, with EC number 3.2.1.8 | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
S954A MUTANT OF THE FERULOYL ESTERASE MODULE FROM CLOSTRIDIUM THERMOCELLUM COMPLEXED WITH VANILLATE
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, particularly the m-methoxy substituent, governing the substrate specificity of Xyn10B feruloyl esterase are rationalized.
About this StructureAbout this Structure
1WB6 is a Single protein structure of sequence from Clostridium thermocellum. 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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