1PZ3

Crystal structure of a family 51 (GH51) alpha-L-arabinofuranosidase from Geobacillus stearothermophilus T6

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1pz3a1	All beta proteins	Glycosyl hydrolase domain	Glycosyl hydrolase domain	Composite domain of glycosyl hydrolase families 5, 30, 39 and 51	Alpha-l-arabinofuranosidase	(Geobacillus stearothermophilus ) [TaxId: 1422 ],	SCOPe (2.08)
A	d1pz3a2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	beta-glycanases	Alpha-L-arabinofuranosidase, catalytic domain	(Geobacillus stearothermophilus ) [TaxId: 1422 ],	SCOPe (2.08)
B	d1pz3b1	All beta proteins	Glycosyl hydrolase domain	Glycosyl hydrolase domain	Composite domain of glycosyl hydrolase families 5, 30, 39 and 51	Alpha-l-arabinofuranosidase	(Geobacillus stearothermophilus ) [TaxId: 1422 ],	SCOPe (2.08)
B	d1pz3b2	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	(Trans)glycosidases	beta-glycanases	Alpha-L-arabinofuranosidase, catalytic domain	(Geobacillus stearothermophilus ) [TaxId: 1422 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Glycosyl hydrolase domain-like	8040030	3001528	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Glycosyl hydrolase domain-like	8040030	3001528	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	(Trans)glycosidases	8040032	3000313	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	(Trans)glycosidases	8040032	3000313	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Glycosyl hydrolase domain-like	8040030	3001528	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Glycosyl hydrolase domain-like	8040030	3001528	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	PF06964	e1pz3A1	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: Glycosyl hydrolase domain (From Topology)	T: Glycosyl hydrolase domain	F: PF06964	ECOD (1.6)
A	PF06964	e1pz3A2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF06964	ECOD (1.6)
B	PF06964	e1pz3B1	A: beta sandwiches	X: Glycosyl hydrolase domain-like	H: Glycosyl hydrolase domain (From Topology)	T: Glycosyl hydrolase domain	F: PF06964	ECOD (1.6)
B	PF06964	e1pz3B2	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF06964	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.1180	Mainly Beta	Sandwich	Immunoglobulin-like	Golgi alpha-mannosidase II	CATH (4.3.0)
A	3.20.20.80	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Glycosidases	CATH (4.3.0)
B	2.60.40.1180	Mainly Beta	Sandwich	Immunoglobulin-like	Golgi alpha-mannosidase II	CATH (4.3.0)
B	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, B	PF06964	Alpha-L-arabinofuranosidase C-terminal domain (Alpha-L-AF_C)	Alpha-L-arabinofuranosidase C-terminal domain	This family represents the C-terminus (approximately 200 residues) of bacterial and eukaryotic alpha-L-arabinofuranosidase (EC:3.2.1.55). This catalyses the hydrolysis of nonreducing terminal alpha-L-arabinofuranosidic linkages in L-arabinose-contain ...	This family represents the C-terminus (approximately 200 residues) of bacterial and eukaryotic alpha-L-arabinofuranosidase (EC:3.2.1.55). This catalyses the hydrolysis of nonreducing terminal alpha-L-arabinofuranosidic linkages in L-arabinose-containing polysaccharides [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Alpha-L-arabinofuranosidase	alpha-L-arabinofuranosidase activity hydrolase activity, acting on glycosyl bonds hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity	carbohydrate metabolic process catabolic process carbohydrate catabolic process primary metabolic process macromolecule catabolic process arabinan metabolic process arabinan catabolic process polysaccharide metabolic process organic substance metabolic process polysaccharide catabolic process metabolic process macromolecule metabolic process organic substance catabolic process monosaccharide metabolic process carbohydrate metabolic process catabolic process carbohydrate catabolic process primary metabolic process macromolecule catabolic process arabinan metabolic process arabinan catabolic process polysaccharide metabolic process organic substance metabolic process polysaccharide catabolic process metabolic process macromolecule metabolic process organic substance catabolic process monosaccharide metabolic process arabinose metabolic process small molecule metabolic process pentose metabolic process L-arabinose metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR017853	Glycoside hydrolase superfamily	Homologous Superfamily
A, B	IPR013780	Glycosyl hydrolase, all-beta	Homologous Superfamily
A, B	IPR010720	Alpha-L-arabinofuranosidase, C-terminal	Domain

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

Chains	Enzyme Name	Description	Catalytic Residues
A	alpha-N-arabinofuranosidase M-CSA #667	Involved in the degradation of arabinan and is a key enzyme in the complete degradation of the plant cell wall. Catalyses the cleavage of terminal alpha-(1->5)-arabinofuranosyl bonds in different hemicellulosic homopolysaccharides (branched and debranched arabinans). It acts preferentially on aryl-alpha-L-arabinofuranosides, and is much less effective on aryl-beta-D-xylopyranosides. It is a member of the glycosyl hydrolase 51 family.	Defined by 2 residues: GLU:A-175GLU:A-294 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.2.1.55 (PDB Primary Data) Search M-CSA Motif + EC 3.2.1.55

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.