4HUQ

Crystal Structure of a transporter

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
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth S]	SCOP2 Family	ECF transporter substrate-specific component-like	8047986	4005895	SCOP2 (2022-06-29)
C [auth S]	SCOP2 Superfamily	Gx transporter-like	8054042	3002268	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	ABC_tran	e4huqB1	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 [auth T]	CbiQ	e4huqT1	A: alpha complex topology	X: T-component of energy-coupling factor (ECF) transporters (From Topology)	H: T-component of energy-coupling factor (ECF) transporters (From Topology)	T: T-component of energy-coupling factor (ECF) transporters	F: CbiQ	ECOD (1.6)
A	ABC_tran	e4huqA1	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)
C [auth S]	ECF_trnsprt	e4huqS1	A: alpha bundles	X: Spectrin repeat-like	H: S-component of energy-coupling factor (ECF) transporters (From Topology)	T: S-component of energy-coupling factor (ECF) transporters	F: ECF_trnsprt	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
C [auth S]	1.10.1760.20	Mainly Alpha	Orthogonal Bundle	Arp2/3 complex 21 kDa subunit ARPC3		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B	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
D [auth T]	PF02361	Cobalt transport protein (CbiQ)	Cobalt transport protein	-	Family
A	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
C [auth S]	PF12822	ECF transporter, substrate-specific component (ECF_trnsprt)	ECF transporter, substrate-specific component	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Energy-coupling factor transporter ATP-binding protein EcfA 2	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity transporter activity transmembrane transporter activity	-	cell periphery plasma membrane membrane cellular anatomical entity
D [auth T]	Energy-coupling factor transporter transmembrane protein EcfT	transporter activity transmembrane transporter activity	-	cell periphery plasma membrane membrane cellular anatomical entity
A	Energy-coupling factor transporter ATP-binding protein EcfA 1	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity transporter activity transmembrane transporter activity	-	cell periphery plasma membrane membrane cellular anatomical entity
C [auth S]	Uncharacterized protein	transporter activity transmembrane transporter activity	-	membrane cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR003593	AAA+ ATPase domain	Domain
B	IPR017871	ABC transporter-like, conserved site	Conserved Site
B	IPR015856	ABC transporter, CbiO/EcfA subunit	Domain
B	IPR003439	ABC transporter-like, ATP-binding domain	Domain
B	IPR030947	Energy-coupling factor transporter ATP-binding protein EcfA1	Family
B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
D [auth T]	IPR024919	ECF transporter transmembrane protein EcfT	Family
D [auth T]	IPR003339	ABC/ECF transporter, transmembrane component	Family
A	IPR030946	Energy-coupling factor transporter ATP-binding protein EcfA2	Family
A	IPR003593	AAA+ ATPase domain	Domain
A	IPR017871	ABC transporter-like, conserved site	Conserved Site
A	IPR015856	ABC transporter, CbiO/EcfA subunit	Domain
A	IPR003439	ABC transporter-like, ATP-binding domain	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
C [auth S]	IPR030949	ECF transporter S component, folate family	Family
C [auth S]	IPR024529	ECF transporter, substrate-specific component	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C [auth S], D [auth T]	OPM				Energy-coupling factor transporters

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C [auth S], D [auth T]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C [auth S], D [auth T]	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C [auth S], D [auth T]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Energy-Coupling Factor (ECF) Transporters	Folate ECF transporter complex

RCSB PDB Core Operations are 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.