Annotations: 4FCH

Crystal Structure SusE from Bacteroides thetaiotaomicron with maltoheptaose

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	SusE-SusF tandem starch specific CBMs	8045531	4004519	SCOP2 (2022-06-29)
A	SCOP2 Family	SusE-SusF tandem starch specific CBMs	8053835	4004519	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Starch specific carbohydrate binding module	8053833	3002234	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Starch specific carbohydrate binding module	8053834	3002234	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Starch specific carbohydrate binding module	8053833	3002234	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Starch specific carbohydrate binding module	8053834	3002234	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	SusF_SusE	e4fchA1	A: a/b three-layered sandwiches	X: Nucleotide-diphospho-sugar transferases	H: Nucleotide-diphospho-sugar transferases	T: Nucleotide-diphospho-sugar transferases	F: SusF_SusE	ECOD (v294.1)
B	Rrf2	e4fchB1	A: a/b three-layered sandwiches	X: beta-Grasp	H: HTH	T: winged helix domain	F: Rrf2	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.3620	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
A	2.60.40.3610	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
B	2.60.40.3620	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)
B	2.60.40.3610	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF16411	SusF/SusE starch specific CBMs (SusF_SusE)	SusF/SusE starch specific CBMs	SusE and SusF are two outer membrane proteins composed of tandem starch specific carbohydrate binding modules (CBMs) with no enzymatic activity. They are are likely to play an important role in starch metabolism in Bacteroides. It has been speculated ...	SusE and SusF are two outer membrane proteins composed of tandem starch specific carbohydrate binding modules (CBMs) with no enzymatic activity. They are are likely to play an important role in starch metabolism in Bacteroides. It has been speculated that they could compete for starch in the human intestinal tract by sequestering starch at the bacterial surface and away from competitors [1]. SusE has higher affinity for starch compared to SusF. SusE contains two starch specific CBMs whereas SusF contains three. This entry represents the two SusE and the second and third SusF CBMs.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Outer membrane protein SusE	starch binding binding polysaccharide binding carbohydrate binding	carbohydrate metabolic process catabolic process glucan catabolic process carbohydrate catabolic process primary metabolic process macromolecule catabolic process polysaccharide metabolic process glucan metabolic process starch metabolic process polysaccharide catabolic process starch catabolic process metabolic process cellular process macromolecule metabolic process	cellular anatomical structure membrane outer membrane cell outer membrane external encapsulating structure extracellular region cell envelope

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR032187	Outer membrane protein SusF/SusE-like, C-terminal	Domain
A, B	IPR025970	SusE outer membrane protein	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.