Annotations: 1EXP

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1expa_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	beta-glycanases	Xylanase A, catalytic core	(Cellulomonas fimi ) [TaxId: 1708 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	(Trans)glycosidases	8043395	3000313	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Glyco_hydro_10	e1expA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: Glyco_hydro_10	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00331	Glycosyl hydrolase family 10 (Glyco_hydro_10)	Glycosyl hydrolase family 10		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	BETA-1,4-D-GLYCANASE CEX-CD	hydrolase activity, acting on glycosyl bonds cellulose 1,4-beta-cellobiosidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity binding polysaccharide binding carbohydrate binding xylanase activity endo-1,4-beta-xylanase activity	carbohydrate metabolic process xylan catabolic process catabolic process hemicellulose metabolic process cell wall organization or biogenesis carbohydrate catabolic process hemicellulose catabolic process primary metabolic process macromolecule catabolic process cell wall macromolecule catabolic process xylan metabolic process polysaccharide metabolic process polysaccharide catabolic process metabolic process carbohydrate metabolic process xylan catabolic process catabolic process hemicellulose metabolic process cell wall organization or biogenesis carbohydrate catabolic process hemicellulose catabolic process primary metabolic process macromolecule catabolic process cell wall macromolecule catabolic process xylan metabolic process polysaccharide metabolic process polysaccharide catabolic process metabolic process cellular process macromolecule metabolic process cell wall polysaccharide metabolic process cell wall macromolecule metabolic process cell wall polysaccharide catabolic process glucan catabolic process beta-glucan metabolic process glucan metabolic process beta-glucan catabolic process cellulose catabolic process cellulose metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR012291	CBM2, carbohydrate-binding domain superfamily	Homologous Superfamily
A	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A	IPR018366	Carbohydrate-binding type-2, conserved site	Conserved Site
A	IPR008965	CBM2/CBM3, carbohydrate-binding domain superfamily	Homologous Superfamily
A	IPR031158	Glycosyl hydrolases family 10, active site	Active Site
A	IPR044846	Glycoside hydrolase family 10	Family
A	IPR001000	Glycoside hydrolase family 10 domain	Domain
A	IPR001919	Carbohydrate-binding type-2 domain	Domain

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

Chains	Enzyme Name	Description	Catalytic Residues
A	endo-1,4-beta-xylanase (glycosyl hydrolase 10) M-CSA #548	The Glycosyl hydrolases form a ubiquitous group of enzymes involved in carbohydrate metabolism. This enzyme, from Cellulomonas fimi, belongs to the glucoside hydrolases family (cellulase F) 10. The class can be sub divided according to the stereoselective reaction outcomes, with hydrolysis occurring with net retention or inversion of the anomeric configuration. This enzyme hydrolyses the beta-glycosidic bond with retention of the anomeric configuration, i.e. it is a retaining glycosidase. The enzyme has been reported to preferentially cleave a cellobiose unit rather than glucose from the non-reducing end of cellulose, and has been identified as biotechnologically important because of its reaction specificity between xylan and cellulose. It also hydrolyses xylan and, to a lesser extent, carboxymethylcellulose and also a range of soluble aryl xylosides, xylobiosides, glucosides and cellobiosides.	Defined by 5 residues: GLU:A-127ASN:A-169HIS:A-205GLU:A-233ASP:A-235 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.2.1.91 (PDB Primary Data) Search M-CSA Motif + EC 3.2.1.91 EC: 3.2.1.8 (PDB Primary Data) Search M-CSA Motif + EC 3.2.1.8

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.