Annotations: 8D9N

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B		e8d9nB1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Carb_anhydrase	F:	ECOD (20:10:01)
A		e8d9nA1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: Carb_anhydrase	F:	ECOD (20:10:01)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Anion exchange protein	antiporter activity active transmembrane transporter activity transporter activity transmembrane transporter activity solute:inorganic anion antiporter activity secondary active transmembrane transporter activity cytoskeletal protein binding protein binding binding monoatomic anion transmembrane transporter activity monoatomic ion transmembrane transporter activity symporter activity	-	cell periphery cellular anatomical structure basal part of cell membrane plasma membrane basal plasma membrane plasma membrane region basolateral plasma membrane intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR011531	Bicarbonate transporter-like, transmembrane domain	Domain
A, B	IPR002977	Anion exchange protein 1	Family
A, B	IPR013769	Band 3 cytoplasmic domain	Domain
A, B	IPR016152	Phosphotransferase/anion transporter	Homologous Superfamily
A, B	IPR001717	Anion exchange protein	Family
A, B	IPR003020	Bicarbonate transporter, eukaryotic	Family
A, B	IPR018241	Anion exchange, conserved site	Conserved Site

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Transmembrane	Alpha-helical polytopic	APC (Amino acid-Polyamine-organoCation) superfamily	Anion exchanger family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Solute Carrier Family 4 (anion exchanger)	Band 3 (AE1) anion exchanger dimer, inward facing-inward facing, TM domain

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.