8HPJ | pdb_00008hpj

Crystal structure of the bacterial oxalate transporter OxlT in a ligand-free outward-facing form

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: mpstruc

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	MFS_1	e8hpjD2	A: alpha complex topology	X: Major facilitator superfamily (MFS) general substrate transporter (From Topology)	H: Major facilitator superfamily (MFS) general substrate transporter (From Topology)	T: Major facilitator superfamily (MFS) general substrate transporter	F: MFS_1	ECOD (1.6)
A	MFS_1	e8hpjA1	A: alpha complex topology	X: Major facilitator superfamily (MFS) general substrate transporter (From Topology)	H: Major facilitator superfamily (MFS) general substrate transporter (From Topology)	T: Major facilitator superfamily (MFS) general substrate transporter	F: MFS_1	ECOD (1.6)
E	V-set_12	e8hpjE1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)
B	V-set_12	e8hpjB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)
F	V-set	e8hpjF1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
C	V-set	e8hpjC1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
F	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, E	Heavy Chain	IGHV5	-	oxalate	SAbDab (2025-12-19)
C, F	Light Chain	IGKV6	Kappa	oxalate	SAbDab (2025-12-19)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, D	PF07690	Major Facilitator Superfamily (MFS_1)	Major Facilitator Superfamily	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, D	Oxalate:formate antiporter	oxalate transmembrane transporter activity dicarboxylic acid transmembrane transporter activity transporter activity carboxylic acid transmembrane transporter activity transmembrane transporter activity antiporter activity active transmembrane transporter activity secondary active transmembrane transporter activity	localization transport monoatomic ion transport establishment of localization	cell periphery cellular anatomical structure plasma membrane membrane
B, E	Fv fragment Heavy chain	-	-	-
C, F	Fv fragment Light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D	IPR026355	Oxalate/formate antiporter	Family
A, D	IPR004741	Oxalate/formate antiporter family transporter	Family
A, D	IPR011701	Major facilitator superfamily	Family
A, D	IPR036259	MFS transporter superfamily	Homologous Superfamily
A, D	IPR020846	Major facilitator superfamily domain	Domain
A, D	IPR052983	Major Facilitator Superfamily Riboflavin Transporter	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, D	OPM	Transmembrane	Alpha-helical polytopic	Major Facilitator Superfamily (MFS)	Oxalate-formate antiporter

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Major Facilitator Superfamily (MFS) Transporters	OxlT oxalate:formate antiporter (OFA) in complex with fab, oxalate-bound occluded form

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.