Annotations: 1L7V

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1l7va_	Membrane and cell surface proteins and peptides	ABC transporter involved in vitamin B12 uptake, BtuC	ABC transporter involved in vitamin B12 uptake, BtuC	ABC transporter involved in vitamin B12 uptake, BtuC	ABC transporter involved in vitamin B12 uptake, BtuC	(Escherichia coli ) [TaxId: 562 ]	SCOPe (2.08)
B	d1l7vb_	Membrane and cell surface proteins and peptides	ABC transporter involved in vitamin B12 uptake, BtuC	ABC transporter involved in vitamin B12 uptake, BtuC	ABC transporter involved in vitamin B12 uptake, BtuC	ABC transporter involved in vitamin B12 uptake, BtuC	(Escherichia coli ) [TaxId: 562 ]	SCOPe (2.08)
C	d1l7vc_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	ABC transporter ATPase domain-like	ABC transporter involved in vitamin B12 uptake, BtuD	(Escherichia coli ) [TaxId: 562 ]	SCOPe (2.08)
D	d1l7vd_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	ABC transporter ATPase domain-like	ABC transporter involved in vitamin B12 uptake, BtuD	(Escherichia coli ) [TaxId: 562 ]	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	FecCD-like	8018501	4002900	SCOP2 (2022-02-25)
A	SCOP2 Superfamily	BtuC-like	8018502	3000523	SCOP2 (2022-02-25)
B	SCOP2B Superfamily	BtuC-like	8018502	3000523	SCOP2B (2022-02-25)
C	SCOP2 Family	ABC transporter ATPase domain-like	8058247	4003976	SCOP2 (2022-02-25)
C	SCOP2 Superfamily	ABC transporter-like P-loop ATPases	8058248	3002020	SCOP2 (2022-02-25)
D	SCOP2B Superfamily	ABC transporter-like P-loop ATPases	8058248	3002020	SCOP2B (2022-02-25)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	FecCD_1	e1l7vA1	A: alpha bundles	X: Type II ABC importer transmembrane domain fold (From Topology)	H: Type II ABC importer transmembrane domain fold (From Topology)	T: Type II ABC importer transmembrane domain fold	F: FecCD_1	ECOD (1.6)
B	FecCD_1	e1l7vB1	A: alpha bundles	X: Type II ABC importer transmembrane domain fold (From Topology)	H: Type II ABC importer transmembrane domain fold (From Topology)	T: Type II ABC importer transmembrane domain fold	F: FecCD_1	ECOD (1.6)
C	ABC_tran	e1l7vC1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: ABC_tran	ECOD (1.6)
D	ABC_tran	e1l7vD1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: ABC_tran	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.3470.10	Mainly Alpha	Orthogonal Bundle	ABC transporter involved in vitamin B12 uptake, BtuC	ABC transporter involved in vitamin B12 uptake, BtuC	CATH (4.2.0)
B	1.10.3470.10	Mainly Alpha	Orthogonal Bundle	ABC transporter involved in vitamin B12 uptake, BtuC	ABC transporter involved in vitamin B12 uptake, BtuC	CATH (4.2.0)
C	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.2.0)
D	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.2.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Identifier	Description	Comments	Source
A, B	PF01032	FecCD transport family (FecCD)	FecCD transport family	-	Family
C, D	PF00005	ABC transporter (ABC_tran)	ABC transporter	ABC transporters for a large family of proteins responsible for translocation of a variety of compounds across biological membranes. ABC transporters are the largest family of proteins in many completely sequenced bacteria. ABC transporters are comp ...	ABC transporters for a large family of proteins responsible for translocation of a variety of compounds across biological membranes. ABC transporters are the largest family of proteins in many completely sequenced bacteria. ABC transporters are composed of two copies of this domain and two copies of a transmembrane domain Pfam:PF00664. These four domains may belong to a single polypeptide as in Swiss:P13569, or belong in different polypeptide chains.	Domain

Gene Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	VITAMIN B12 TRANSPORT SYSTEM PERMEASE PROTEIN BTUC	transporter activity primary active transmembrane transporter activity ABC-type vitamin B12 transporter activity active transmembrane transporter activity transmembrane transporter activity ATPase-coupled transmembrane transporter activity vitamin transmembrane transporter activity ABC-type transporter activity ATP-dependent activity binding protein binding identical protein binding		plasma membrane membrane integral component of membrane intrinsic component of membrane protein-containing complex ATP-binding cassette (ABC) transporter complex cell periphery ATPase dependent transmembrane transport complex membrane protein complex plasma membrane protein complex cellular anatomical entity transmembrane transporter complex transporter complex integral component of plasma membrane intrinsic component of plasma membrane
C, D	Vitamin B12 transport ATP-binding protein btuD	catalytic activity pyrophosphatase activity hydrolase activity hydrolase activity, acting on acid anhydrides hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides ATP hydrolysis activity nucleoside-triphosphatase activity ATP-dependent activity transporter activity primary active transmembrane transporter activity active transmembrane transporter activity transmembrane transporter activity ATPase-coupled transmembrane transporter activity ABC-type vitamin B12 transporter activity vitamin transmembrane transporter activity ABC-type transporter activity		plasma membrane membrane integral component of membrane intrinsic component of membrane protein-containing complex ATP-binding cassette (ABC) transporter complex cell periphery ATPase dependent transmembrane transport complex membrane protein complex plasma membrane protein complex cellular anatomical entity transmembrane transporter complex transporter complex extrinsic component of membrane

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D	OPM	Transmembrane	Alpha-helical polytopic	ABC transporters	FecCD transport family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C, D	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	ATP Binding Cassette (ABC) Transporters	BtuCD Vitamin B₁₂ Transporter

RCSB PDB is 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.