Annotations: 7UZU

Ankyrin-1 (N-terminal region of membrane binding domain, local refinement from consensus reconstruction; bound to N-terminal peptide from band 3)

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
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)
A		e7uzuA1	A: alpha arrays	X: putative RnfG subunit of electron transport complex	H: putative RnfG subunit of electron transport complex	T: Aspartate/ornithine carbamoyltransferase	F:	ECOD (v295)
B [auth W]	Uteroglobin	e7uzuW1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Uteroglobin	ECOD (v295)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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	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 cytoskeletal adaptor activity protein-macromolecule adaptor 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 cytoskeletal adaptor activity protein-macromolecule adaptor activity molecular adaptor activity ATPase binding	localization protein localization to cell periphery cellular localization protein localization to plasma membrane macromolecule localization cellular process intracellular protein 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 localization protein localization to cell periphery cellular localization protein localization to plasma membrane macromolecule localization cellular process intracellular protein 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 intracellular transport endoplasmic reticulum to Golgi vesicle-mediated transport establishment of localization vesicle-mediated transport intercellular transport establishment of localization in cell Golgi vesicle transport cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation signal transduction cell communication cellular component organization organelle organization cellular component organization or biogenesis 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
B [auth W]	Band 3 anion transport protein	cytoskeletal protein binding ankyrin binding protein binding binding hemoglobin binding bicarbonate transmembrane transporter activity transporter activity transmembrane transporter activity chloride transmembrane transporter activity monoatomic anion transmembrane transporter activity bicarbonate:monoatomic anion antiporter activity secondary active transmembrane transporter activity antiporter activity active transmembrane transporter activity cytoskeletal protein binding ankyrin binding protein binding binding hemoglobin binding bicarbonate transmembrane transporter activity transporter activity transmembrane transporter activity chloride transmembrane transporter activity monoatomic anion transmembrane transporter activity bicarbonate:monoatomic anion antiporter activity secondary active transmembrane transporter activity antiporter activity active transmembrane transporter activity chloride:bicarbonate antiporter activity monoatomic ion transmembrane transporter activity solute:inorganic anion antiporter activity protein-membrane adaptor activity protein-macromolecule adaptor activity molecular adaptor activity identical protein binding protein homodimerization activity protein dimerization activity	transport monoatomic ion transmembrane transport establishment of localization chloride transport transmembrane transport localization chloride transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport monoatomic ion transport cellular process inorganic anion transport cellular homeostasis chemical homeostasis transport monoatomic ion transmembrane transport establishment of localization chloride transport transmembrane transport localization chloride transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport monoatomic ion transport cellular process inorganic anion transport cellular homeostasis chemical homeostasis homeostatic process monoatomic ion homeostasis intracellular chemical homeostasis intracellular monoatomic ion homeostasis bicarbonate transport biological regulation regulation of intracellular pH intracellular monoatomic cation homeostasis regulation of pH regulation of biological quality monoatomic cation homeostasis	cellular anatomical structure membrane intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere intracellular organelle I band organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril cellular anatomical structure membrane intracellular anatomical structure intracellular membraneless organelle Z disc sarcomere intracellular organelle I band organelle membraneless organelle contractile muscle fiber cytoplasm supramolecular fiber myofibril supramolecular polymer supramolecular complex ankyrin-1 complex protein-containing complex membrane protein complex extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region vesicle extracellular membrane-bounded organelle cell periphery plasma membrane basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane blood microparticle cytoplasmic side of plasma membrane cytoplasmic side of membrane side of membrane cell cortex cortical cytoskeleton cytoskeleton

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036770	Ankyrin repeat-containing domain superfamily	Homologous Superfamily
A	IPR040745	Ankyrin, UPA domain	Domain
A	IPR000906	ZU5 domain	Domain
A	IPR002110	Ankyrin repeat	Repeat
A	IPR011029	Death-like domain superfamily	Homologous Superfamily
A	IPR051165	Multifunctional Ankyrin Repeat Domain-Containing Protein	Family
A	IPR000488	Death domain	Domain
B [auth W]	IPR013769	Band 3 cytoplasmic domain	Domain
B [auth W]	IPR001717	Anion exchange protein	Family
B [auth W]	IPR003020	Bicarbonate transporter, eukaryotic	Family
B [auth W]	IPR011531	Bicarbonate transporter-like, transmembrane domain	Domain
B [auth W]	IPR002977	Anion exchange protein 1	Family
B [auth W]	IPR016152	Phosphotransferase/anion transporter	Homologous Superfamily
B [auth W]	IPR018241	Anion exchange, conserved site	Conserved Site

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: 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
B [auth W]	: P02730	hereditary elliptocytosis hereditary spherocytosis renal tubular acidosis hereditary spherocytosis type 4 cryohydrocytosis southeast Asian ovalocytosis hemolytic anemia renal tubular acidosis, distal, 4, with hemolytic anemia malaria hematologic disease Ovalocytosis, Malaysian-Melanesian-Filipino Type autosomal dominant distal renal tubular acidosis familial hemolytic anemia distal renal tubular acidosis MALT lymphoma hereditary elliptocytosis hereditary spherocytosis renal tubular acidosis hereditary spherocytosis type 4 cryohydrocytosis southeast Asian ovalocytosis hemolytic anemia renal tubular acidosis, distal, 4, with hemolytic anemia malaria hematologic disease Ovalocytosis, Malaysian-Melanesian-Filipino Type autosomal dominant distal renal tubular acidosis familial hemolytic anemia distal renal tubular acidosis MALT lymphoma renal tubular acidosis, distal, 3, with or without sensorineural hearing loss tuberculosis psoriasis osteosarcoma

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

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

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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.