Acetylxylan esterase: Difference between revisions
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'''Acetylxylan esterase''' (AXE) catalyzes the deacetylation of xylans and xylo-oligosaccharides. AXE is involved in the biodegradation of hemicellulose. AXE hydrolyzes the ester linkages of the acetyl groups in position 2 and/or 3 of xylose moiety of naturally acetylated xylan from hardwood. AXE is one of the accessory enzymes which are part of the xylanolytic system. Together with xylanase, β-xylosidase, α-arabinofuranosidase and methylglucoronidase, AXE is required for the complete degradation of xylan. Xylan is the major constituent of hemicellulose which is the second most abundant polysaccharide in plants. | '''Acetylxylan esterase''' (AXE) catalyzes the deacetylation of xylans and xylo-oligosaccharides. AXE is involved in the biodegradation of hemicellulose. AXE hydrolyzes the ester linkages of the acetyl groups in position 2 and/or 3 of xylose moiety of naturally acetylated xylan from hardwood. AXE is one of the accessory enzymes which are part of the xylanolytic system. Together with xylanase, β-xylosidase, α-arabinofuranosidase and methylglucoronidase, AXE is required for the complete degradation of xylan. Xylan is the major constituent of hemicellulose which is the second most abundant polysaccharide in plants. | ||
</StructureSection> | |||
==3D structures of acetylxylan esterase== | ==3D structures of acetylxylan esterase== | ||
Updated on {{REVISIONDAY2}}-{{MONTHNAME|{{REVISIONMONTH}}}}-{{REVISIONYEAR}} | Updated on {{REVISIONDAY2}}-{{MONTHNAME|{{REVISIONMONTH}}}}-{{REVISIONYEAR}} | ||
{{#tree:id=OrganizedByTopic|openlevels=0| | |||
*Acetylxylan esterase | |||
''' | **[[1bs9]], [[2axe]] – PpAXE – ''Penicillium purpurogenum''<br /> | ||
**[[1g66]] – PpAXE II<br /> | |||
**[[1qoz]] – AXE catalytic domain – ''Trichoderma reesei''<br /> | |||
**[[1vlq]], [[3m81]] – TmAXE – ''Thermotoga maritima''<br /> | |||
**[[3fvr]], [[3fvt]], [[2xlb]] – BpAXE – ''Bacillus pumilus'' | |||
*Acetylxylan esterase binary complex | |||
**[[2c71]], [[2c79]] – AXE + metal ion – ''Clostridium thermocellum''<br /> | |||
**[[3fyt]] – BpAXE (mutant) + β-D-xylopyranose<br /> | |||
**[[3fyu]] – BpAXE + D-xylose<br /> | |||
**[[2xlc]] – BpAXE + diethyl phosphonate<br /> | |||
**[[3m83]] – TmAXE + paraoxon inhibitor<br /> | |||
**[[3m82]] – TmAXE + PMSF inhibitor | |||
}} | |||
[[Category:Topic Page]] | [[Category:Topic Page]] | ||
Revision as of 07:51, 12 November 2014
Acetylxylan esterase (AXE) catalyzes the deacetylation of xylans and xylo-oligosaccharides. AXE is involved in the biodegradation of hemicellulose. AXE hydrolyzes the ester linkages of the acetyl groups in position 2 and/or 3 of xylose moiety of naturally acetylated xylan from hardwood. AXE is one of the accessory enzymes which are part of the xylanolytic system. Together with xylanase, β-xylosidase, α-arabinofuranosidase and methylglucoronidase, AXE is required for the complete degradation of xylan. Xylan is the major constituent of hemicellulose which is the second most abundant polysaccharide in plants. </StructureSection>
3D structures of acetylxylan esterase
Updated on 12-November-2014
