Annotations: 2W9X

The active site of a carbohydrate esterase displays divergent catalytic and non-catalytic binding functions

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HORMA	e2w9xA7	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: HORMA	ECOD (v294.1)
A	CE2_N	e2w9xA2	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II	H: Rubredoxin-related	T: Tetrapyrrole methylase C-terminal domain	F: CE2_N	ECOD (v294.1)
B	DUF3228	e2w9xB3	A: a/b three-layered sandwiches	X: POZ domain	H: POZ domain	T: POZ domain	F: DUF3228	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.120.260	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding domain-like	CATH (4.3.0)
A	3.40.50.1110	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	SGNH hydrolase	CATH (4.3.0)
B	2.60.120.260	Mainly Beta	Sandwich	Jelly Rolls	Galactose-binding domain-like	CATH (4.3.0)
B	3.40.50.1110	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	SGNH hydrolase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF13472	GDSL-like Lipase/Acylhydrolase family (Lipase_GDSL_2)	GDSL-like Lipase/Acylhydrolase family	This family of presumed lipases and related enzymes are similar to Pfam:PF00657.	Domain
A, B	PF17996	Carbohydrate esterase 2 N-terminal (CE2_N)	Carbohydrate esterase 2 N-terminal	This is the N-terminal beta-sheet domain with jelly roll topology found in CE2 acetyl-esterase from the bacterium Clostridium thermocellum. This enzyme displays dual activities, it catalyses the deacetylation of plant polysaccharides and also potenti ...	This is the N-terminal beta-sheet domain with jelly roll topology found in CE2 acetyl-esterase from the bacterium Clostridium thermocellum. This enzyme displays dual activities, it catalyses the deacetylation of plant polysaccharides and also potentiates the activity of its appended cellulase catalytic module through its noncatalytic cellulose binding function. This N-terminal jelly-roll domain appears to extend the substrate/cellulose binding cleft of the catalytic domain in C.thermocellum [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	PUTATIVE ACETYL XYLAN ESTERASE	hydrolase activity, acting on glycosyl bonds hydrolase activity catalytic activity hydrolase activity, acting on ester bonds carboxylic ester hydrolase activity acetylxylan esterase activity	carbohydrate metabolic process xylan catabolic process catabolic process carbohydrate catabolic process hemicellulose catabolic process primary metabolic process macromolecule catabolic process xylan metabolic process polysaccharide metabolic process polysaccharide catabolic process metabolic process cellular process macromolecule metabolic process glucomannan catabolic process carbohydrate metabolic process xylan catabolic process catabolic process carbohydrate catabolic process hemicellulose catabolic process primary metabolic process macromolecule catabolic process xylan metabolic process polysaccharide metabolic process polysaccharide catabolic process metabolic process cellular process macromolecule metabolic process glucomannan catabolic process substituted mannan metabolic process glucomannan metabolic process	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR013830	SGNH hydrolase-type esterase domain	Domain
A, B	IPR052762	Plant cell wall deacetylase/carbohydrate esterase	Family
A, B	IPR036514	SGNH hydrolase superfamily	Homologous Superfamily
A, B	IPR037461	CtCE2-like domain	Domain
A, B	IPR040794	Carbohydrate esterase 2, N-terminal	Domain

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.