Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1bvva_ All beta proteins Concanavalin A-like lectins/glucanases Concanavalin A-like lectins/glucanases Xylanase/endoglucanase 11/12 Xylanase II (Niallia circulans ) [TaxId: 1397 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyConcanavalin A-like lectins/glucanases 8041460 3000120 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AGlyco_hydro_11e1bvvA1 A: beta sandwichesX: jelly-rollH: Concanavalin A-likeT: Concanavalin A-like lectins/glucanasesF: Glyco_hydro_11ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.60.120.180 Mainly Beta Sandwich Jelly Rolls Glycoside hydrolase family 11/12, catalytic domainCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00457Glycosyl hydrolases family 11 (Glyco_hydro_11)Glycosyl hydrolases family 11- Domain

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
endo-1,4-beta-xylanase (glycosyl hydrolase 11 family)  M-CSA #432

These enzymes all belong to glycosyl hydrolase 11 (cellulase G) family (GH11). They are typically small (~20 kDa) with a conserved jelly-roll fold, that catalyse the hydrolysis of beta-1,4-xylan linkages using general acid/base catalysis with retention of the anomeric configuration via a covalent glycosyl-enzyme intermediate.

Xylan is a major plant cell wall hemicellulose made up of 1,4-beta-linked and 1,3-beta-linked D-xylopyranose residues. These enzymes catalyse the endohydrolysis of the main- chain 1,4-beta-glycosidic bonds connecting the xylose subunits yielding various xylooligosaccharides and xylose.

These enzymes are excellent targets for protein engineering experiments as xylanolytic activity is useful in biotechnological applications such as the bleaching of hardwood kraft pulp for paper manufacture as use of this protein is effective in reducing the amount of environmentally toxic chlorine and chlorine-containing chemicals used. It is also used in the processing of feed for livestock.

Defined by 5 residues: ASN:A-35TYR:A-69GLU:A-78TYR:A-80GLU:A-172
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