Annotations: 7UZQ

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth K]	F_UNCLASSIFIED	e7uzqK1	A: alpha complex topology	X: Ammonium transporter-related (From Homology)	H: Ammonium transporter-related	T: Ammonium transporter	F: F_UNCLASSIFIED	ECOD (1.6)
B [auth L]	Ammonium_transp_1	e7uzqL1	A: alpha complex topology	X: Ammonium transporter-related (From Homology)	H: Ammonium transporter-related	T: Ammonium transporter	F: Ammonium_transp_1	ECOD (1.6)
C [auth Q]	Ammonium_transp_1	e7uzqQ1	A: alpha complex topology	X: Ammonium transporter-related (From Homology)	H: Ammonium transporter-related	T: Ammonium transporter	F: Ammonium_transp_1	ECOD (1.6)
D [auth J]	Ank_2	e7uzqJ1	A: alpha superhelices	X: Repetitive alpha hairpins	H: Ankyrin repeat (From Topology)	T: Ankyrin repeat	F: Ank_2	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth K]	PF00909	Ammonium Transporter Family (Ammonium_transp)	Ammonium Transporter Family	-	Family
B [auth L], C [auth Q]	PF00909	Ammonium Transporter Family (Ammonium_transp)	Ammonium Transporter Family	-	Family
D [auth J]	PF00023	Ankyrin repeat (Ank)	Ankyrin repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth K]	Blood group Rh(CE) polypeptide	ammonium channel activity passive transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity channel activity transporter activity transmembrane transporter activity	inorganic ion homeostasis chemical homeostasis homeostatic process ammonium homeostasis transmembrane transport localization nitrogen compound transport transport ammonium transmembrane transport cellular process inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport	cell periphery cellular anatomical structure plasma membrane membrane ankyrin-1 complex protein-containing complex membrane protein complex
B [auth L], C [auth Q]	Ammonium transporter Rh type A	passive transmembrane transporter activity narrow pore channel activity leak channel activity channel activity transporter activity transmembrane transporter activity carbon dioxide transmembrane transporter activity organic cation transmembrane transporter activity amine transmembrane transporter activity methylammonium transmembrane transporter activity cytoskeletal protein binding ankyrin binding protein binding binding passive transmembrane transporter activity narrow pore channel activity leak channel activity channel activity transporter activity transmembrane transporter activity carbon dioxide transmembrane transporter activity organic cation transmembrane transporter activity amine transmembrane transporter activity methylammonium transmembrane transporter activity cytoskeletal protein binding ankyrin binding protein binding binding ammonium channel activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity	inorganic ion homeostasis chemical homeostasis homeostatic process ammonium homeostasis transmembrane transport localization nitrogen compound transport transport ammonium transmembrane transport cellular process inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport one-carbon compound transport inorganic ion homeostasis chemical homeostasis homeostatic process ammonium homeostasis transmembrane transport localization nitrogen compound transport transport ammonium transmembrane transport cellular process inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport one-carbon compound transport gas transport carbon dioxide transport carbon dioxide transmembrane transport developmental process multicellular organismal process erythrocyte development cellular developmental process hemopoiesis cell development erythrocyte differentiation multicellular organismal-level homeostasis myeloid cell differentiation immune system process cell differentiation anatomical structure development myeloid cell development homeostasis of number of cells myeloid cell homeostasis erythrocyte homeostasis cellular homeostasis monoatomic ion homeostasis intracellular chemical homeostasis intracellular monoatomic ion homeostasis bicarbonate transport organic anion transport multicellular organismal-level iron ion homeostasis multicellular organismal-level chemical homeostasis monoatomic cation homeostasis methylammonium transmembrane transport organic cation transport amine transport methylammonium transport	cellular anatomical structure membrane ankyrin-1 complex protein-containing complex membrane protein complex cell periphery plasma membrane
D [auth J]	Ankyrin-1	cytoskeletal protein binding spectrin binding protein-containing complex binding protein binding binding protein phosphatase binding phosphatase binding enzyme binding transmembrane transporter binding structural constituent of cytoskeleton structural molecule activity protein-macromolecule adaptor activity cytoskeletal anchor activity molecular adaptor activity cytoskeletal protein binding spectrin binding protein-containing complex binding protein binding binding protein phosphatase binding phosphatase binding enzyme binding transmembrane transporter binding structural constituent of cytoskeleton structural molecule activity protein-macromolecule adaptor activity cytoskeletal anchor activity molecular adaptor activity ATPase binding	positive regulation of organelle organization regulation of biological process positive regulation of cellular component organization regulation of cellular process regulation of cellular component organization biological regulation positive regulation of biological process regulation of organelle organization cellular component organization organelle organization cellular process cellular component organization or biogenesis positive regulation of cellular process protein localization positive regulation of organelle organization regulation of biological process positive regulation of cellular component organization regulation of cellular process regulation of cellular component organization biological regulation positive regulation of biological process regulation of organelle organization cellular component organization organelle organization cellular process cellular component organization or biogenesis positive regulation of cellular process protein localization localization protein localization to cell periphery cellular localization protein localization to plasma membrane cellular macromolecule localization macromolecule localization localization within membrane protein localization to membrane establishment or maintenance of bipolar cell polarity establishment or maintenance of epithelial cell apical/basal polarity maintenance of cell polarity maintenance of epithelial cell apical/basal polarity maintenance of apical/basal cell polarity establishment or maintenance of apical/basal cell polarity establishment or maintenance of cell polarity transport establishment of localization in cell intracellular transport endoplasmic reticulum to Golgi vesicle-mediated transport establishment of localization Golgi vesicle transport vesicle-mediated transport cellular response to stimulus response to stimulus signaling signal transduction cell communication cytoskeleton organization secretion by cell exocytosis secretion export from cell	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane M band intracellular anatomical structure intracellular membraneless organelle sarcomere cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane M band intracellular anatomical structure intracellular membraneless organelle sarcomere intracellular organelle organelle membraneless organelle contractile muscle fiber A band cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex Z disc I band ankyrin-1 complex protein-containing complex membrane protein complex cytosol sarcolemma basal part of cell basal plasma membrane basolateral plasma membrane cell projection neuron projection plasma membrane bounded cell projection cytoskeleton axon cell leading edge axolemma leading edge membrane neuron projection membrane main axon cell projection membrane membrane-bounded organelle intracellular membrane-bounded organelle endomembrane system sarcoplasm endoplasmic reticulum sarcoplasmic reticulum spectrin-associated cytoskeleton cytoplasmic side of plasma membrane cytoplasmic side of membrane side of membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth K]	IPR002229	Blood group Rhesus C/E/D polypeptide	Family
A [auth K]	IPR029020	Ammonium/urea transporter	Homologous Superfamily
A [auth K]	IPR024041	Ammonium transporter AmtB-like domain	Domain
B [auth L], C [auth Q]	IPR002229	Blood group Rhesus C/E/D polypeptide	Family
B [auth L], C [auth Q]	IPR029020	Ammonium/urea transporter	Homologous Superfamily
B [auth L], C [auth Q]	IPR024041	Ammonium transporter AmtB-like domain	Domain
D [auth J]	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
D [auth J]	IPR040745	Ankyrin, UPA domain	Domain
D [auth J]	IPR000906	ZU5 domain	Domain
D [auth J]	IPR002110	Ankyrin repeat	Repeat
D [auth J]	IPR011029	Death-like domain superfamily	Homologous Superfamily
D [auth J]	IPR000488	Death domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth K]	Pharos: P18577	familial hemolytic anemia Rh deficiency syndrome Anemia, Hemolytic, Congenital MALT lymphoma ovarian cancer spina bifida blood group incompatibility medulloblastoma osteosarcoma
B [auth L], C [auth Q]	Pharos: Q02094	Rh deficiency syndrome overhydrated hereditary stomatocytosis familial hemolytic anemia congenital anemia hemolytic anemia osteosarcoma Cytopenia large cell medulloblastoma MALT lymphoma psoriasis
D [auth J]	Pharos: P16157	hereditary spherocytosis hereditary spherocytosis type 1 8p11.2 deletion syndrome Bone Diseases, Developmental familial hemolytic anemia hereditary elliptocytosis pilocytic astrocytoma subependymal giant cell astrocytoma hemolytic anemia myopathy primitive neuroectodermal tumor type 2 diabetes mellitus congenital anemia malignant ependymoma maturity-onset diabetes of the young hereditary spherocytosis hereditary spherocytosis type 1 8p11.2 deletion syndrome Bone Diseases, Developmental familial hemolytic anemia hereditary elliptocytosis pilocytic astrocytoma subependymal giant cell astrocytoma hemolytic anemia myopathy primitive neuroectodermal tumor type 2 diabetes mellitus congenital anemia malignant ependymoma maturity-onset diabetes of the young osteosarcoma atypical teratoid rhabdoid tumor cystic fibrosis glioblastoma malignant glioma medulloblastoma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth K], B [auth L], C [auth Q], D [auth J]	OPM	Transmembrane	Alpha-helical polytopic	Ammonia/urea transporters/Na+ exporter	Ammonia transporter Amt

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth K], B [auth L], C [auth Q], D [auth J]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth K], B [auth L], C [auth Q], D [auth J]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Solute Carrier Family 4 (anion exchanger)	Erythrocyte Band 3 anion exchanger complex. Band 3-Glycophorin A complex, outward facing

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.