6SXS

GH54 a-l-arabinofuranosidase soaked with cyclic sulfate inhibitor

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth AAA]	SCOP2B Superfamily	AbfB domain	8041698	3000397	SCOP2B (2022-06-29)
A [auth AAA]	SCOP2B Superfamily	Concanavalin A-like lectins/glucanases	8041694	3000120	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 [auth AAA]	ArabFuran-catal	e6sxsAAA2	A: beta sandwiches	X: jelly-roll	H: Concanavalin A-like	T: Concanavalin A-like lectins/glucanases	F: ArabFuran-catal	ECOD (1.6)
A [auth AAA]	AbfB	e6sxsAAA1	A: beta duplicates or obligate multimers	X: beta-Trefoil (From Topology)	H: beta-Trefoil (From Topology)	T: beta-Trefoil	F: AbfB	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth AAA]	PF05270	Alpha-L-arabinofuranosidase B (ABFB) domain (AbfB)	Alpha-L-arabinofuranosidase B (ABFB) domain	This family consists of several fungal alpha-L-arabinofuranosidase B proteins. L-Arabinose is a constituent of plant-cell-wall poly-saccharides. It is found in a polymeric form in L-arabinan, in which the backbone is formed by 1,5-a- linked l-arabin ...	This family consists of several fungal alpha-L-arabinofuranosidase B proteins. L-Arabinose is a constituent of plant-cell-wall poly-saccharides. It is found in a polymeric form in L-arabinan, in which the backbone is formed by 1,5-a- linked l-arabinose residues that can be branched via 1,2-a- and 1,3-a-linked l-arabinofuranose side chains. AbfB hydrolyses 1,5-a, 1,3-a and 1,2-a linkages in both oligosaccharides and polysaccharides, which contain terminal non-reducing l-arabinofuranoses in side chains [1].	Domain
A [auth AAA]	PF09206	Alpha-L-arabinofuranosidase B, catalytic (ArabFuran-catal)	Alpha-L-arabinofuranosidase B, catalytic	Members of this family, which are present in fungal alpha-L-arabinofuranosidase B, adopt a beta-sandwich fold similar to that of Concanavalin A-like lectins/glucanase. The beta-sandwich fold consists of two anti-parallel beta-sheets with seven and an ...	Members of this family, which are present in fungal alpha-L-arabinofuranosidase B, adopt a beta-sandwich fold similar to that of Concanavalin A-like lectins/glucanase. The beta-sandwich fold consists of two anti-parallel beta-sheets with seven and and six strands, respectively. In addition, there are four helices outside of the beta-strands. The beta-sandwich strands are closely packed and curved with a jelly roll topology, creating a small catalytic pocket. The domain catalyses the hydrolysis of alpha-1,2-, alpha-1,3- and alpha-1,5-L-arabinofuranosidic bonds in L-arabinose-containing hemicelluloses such as arabinoxylan and L-arabinan [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth AAA]	Alpha-L-arabinofuranosidase B	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 polysaccharide catabolic process metabolic process macromolecule metabolic process xylan catabolic process hemicellulose metabolic process cell wall organization or biogenesis carbohydrate metabolic process catabolic process carbohydrate catabolic process primary metabolic process macromolecule catabolic process arabinan metabolic process arabinan catabolic process polysaccharide metabolic process polysaccharide catabolic process metabolic process macromolecule metabolic process xylan catabolic process hemicellulose metabolic process cell wall organization or biogenesis hemicellulose catabolic process cell wall macromolecule catabolic process xylan metabolic process cellular process cell wall polysaccharide metabolic process cell wall macromolecule metabolic process cell wall polysaccharide catabolic process monosaccharide metabolic process arabinose metabolic process small molecule metabolic process pentose metabolic process L-arabinose metabolic process galacturonan metabolic process pectin metabolic process pectin catabolic process	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth AAA]	IPR007934	Alpha-L-arabinofuranosidase B, arabinose-binding domain	Domain
A [auth AAA]	IPR013320	Concanavalin A-like lectin/glucanase domain superfamily	Homologous Superfamily
A [auth AAA]	IPR038964	Alpha-L-arabinofuranosidase B	Family
A [auth AAA]	IPR036195	Alpha-L-arabinofuranosidase B, arabinose-binding domain superfamily	Homologous Superfamily
A [auth AAA]	IPR015289	Alpha-L-arabinofuranosidase B, catalytic	Domain

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.