1L2A

The Crystal Structure and Catalytic Mechanism of Cellobiohydrolase CelS, the Major Enzymatic Component of the Clostridium thermocellum cellulosome

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1l2aa_	All alpha proteins	alpha/alpha toroid	Six-hairpin glycosidases	Cellulases catalytic domain	Processive endocellulase CelF (Cel48F)	(Acetivibrio thermocellus ) [TaxId: 1515 ],	SCOPe (2.08)
B	d1l2ab_	All alpha proteins	alpha/alpha toroid	Six-hairpin glycosidases	Cellulases catalytic domain	Processive endocellulase CelF (Cel48F)	(Acetivibrio thermocellus ) [TaxId: 1515 ],	SCOPe (2.08)
C	d1l2ac_	All alpha proteins	alpha/alpha toroid	Six-hairpin glycosidases	Cellulases catalytic domain	Processive endocellulase CelF (Cel48F)	(Acetivibrio thermocellus ) [TaxId: 1515 ],	SCOPe (2.08)
D	d1l2ad_	All alpha proteins	alpha/alpha toroid	Six-hairpin glycosidases	Cellulases catalytic domain	Processive endocellulase CelF (Cel48F)	(Acetivibrio thermocellus ) [TaxId: 1515 ],	SCOPe (2.08)
E	d1l2ae_	All alpha proteins	alpha/alpha toroid	Six-hairpin glycosidases	Cellulases catalytic domain	Processive endocellulase CelF (Cel48F)	(Acetivibrio thermocellus ) [TaxId: 1515 ],	SCOPe (2.08)
F	d1l2af_	All alpha proteins	alpha/alpha toroid	Six-hairpin glycosidases	Cellulases catalytic domain	Processive endocellulase CelF (Cel48F)	(Acetivibrio thermocellus ) [TaxId: 1515 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Six-hairpin glycosidases	8040981	3000970	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Six-hairpin glycosidases	8040981	3000970	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Six-hairpin glycosidases	8040981	3000970	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Six-hairpin glycosidases	8040981	3000970	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Six-hairpin glycosidases	8040981	3000970	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Six-hairpin glycosidases	8040981	3000970	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_48	e1l2aA1	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: Glyco_hydro_48	ECOD (1.6)
B	Glyco_hydro_48	e1l2aB1	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: Glyco_hydro_48	ECOD (1.6)
C	Glyco_hydro_48	e1l2aC1	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: Glyco_hydro_48	ECOD (1.6)
D	Glyco_hydro_48	e1l2aD1	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: Glyco_hydro_48	ECOD (1.6)
E	Glyco_hydro_48	e1l2aE1	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: Glyco_hydro_48	ECOD (1.6)
F	Glyco_hydro_48	e1l2aF1	A: alpha superhelices	X: Repetitive alpha hairpins	H: alpha/alpha toroid (From Topology)	T: alpha/alpha toroid	F: Glyco_hydro_48	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.50.10.10	Mainly Alpha	Alpha/alpha barrel	Glycosyltransferase		CATH (4.3.0)
A	2.170.160.10	Mainly Beta	Beta Complex	Endo-1,4-beta-glucanase f	domain 2	CATH (4.3.0)
A	4.10.870.10	Few Secondary Structures	Irregular	Endo-1,4-beta-glucanase f	domain 3	CATH (4.3.0)
B	1.50.10.10	Mainly Alpha	Alpha/alpha barrel	Glycosyltransferase		CATH (4.3.0)
B	2.170.160.10	Mainly Beta	Beta Complex	Endo-1,4-beta-glucanase f	domain 2	CATH (4.3.0)
B	4.10.870.10	Few Secondary Structures	Irregular	Endo-1,4-beta-glucanase f	domain 3	CATH (4.3.0)
C	1.50.10.10	Mainly Alpha	Alpha/alpha barrel	Glycosyltransferase		CATH (4.3.0)
C	2.170.160.10	Mainly Beta	Beta Complex	Endo-1,4-beta-glucanase f	domain 2	CATH (4.3.0)
C	4.10.870.10	Few Secondary Structures	Irregular	Endo-1,4-beta-glucanase f	domain 3	CATH (4.3.0)
D	1.50.10.10	Mainly Alpha	Alpha/alpha barrel	Glycosyltransferase		CATH (4.3.0)
D	2.170.160.10	Mainly Beta	Beta Complex	Endo-1,4-beta-glucanase f	domain 2	CATH (4.3.0)
D	4.10.870.10	Few Secondary Structures	Irregular	Endo-1,4-beta-glucanase f	domain 3	CATH (4.3.0)
E	1.50.10.10	Mainly Alpha	Alpha/alpha barrel	Glycosyltransferase		CATH (4.3.0)
E	2.170.160.10	Mainly Beta	Beta Complex	Endo-1,4-beta-glucanase f	domain 2	CATH (4.3.0)
E	4.10.870.10	Few Secondary Structures	Irregular	Endo-1,4-beta-glucanase f	domain 3	CATH (4.3.0)
F	1.50.10.10	Mainly Alpha	Alpha/alpha barrel	Glycosyltransferase		CATH (4.3.0)
F	2.170.160.10	Mainly Beta	Beta Complex	Endo-1,4-beta-glucanase f	domain 2	CATH (4.3.0)
F	4.10.870.10	Few Secondary Structures	Irregular	Endo-1,4-beta-glucanase f	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF02011	Glycosyl hydrolase family 48 (Glyco_hydro_48)	Glycosyl hydrolase family 48	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	cellobiohydrolase	hydrolase activity, acting on glycosyl bonds cellulose 1,4-beta-cellobiosidase activity (reducing end) hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity catalytic activity cellulase activity cation binding ion binding binding metal ion binding small molecule binding	carbohydrate metabolic process catabolic process glucan catabolic process beta-glucan metabolic process carbohydrate catabolic process primary metabolic process macromolecule catabolic process polysaccharide metabolic process glucan metabolic process beta-glucan catabolic process polysaccharide catabolic process metabolic process cellulose catabolic process macromolecule metabolic process carbohydrate metabolic process catabolic process glucan catabolic process beta-glucan metabolic process carbohydrate catabolic process primary metabolic process macromolecule catabolic process polysaccharide metabolic process glucan metabolic process beta-glucan catabolic process polysaccharide catabolic process metabolic process cellulose catabolic process macromolecule metabolic process cellulose metabolic process	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR002105	Dockerin type I repeat	Repeat
A, B, C, D, E A, B, C, D, E, F	IPR027390	Endoglucanase F, domain 3	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR016134	Dockerin domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR008928	Six-hairpin glycosidase superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR012341	Six-hairpin glycosidase-like superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR023309	Endoglucanase F, domain 2	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR000556	Glycoside hydrolase, 48F	Family
A, B, C, D, E A, B, C, D, E, F	IPR036439	Dockerin domain superfamily	Homologous Superfamily

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.