Annotations: 8ZQO

Human high-affinity choline transporter CHT1 bound to HC-3 under NaCl condition, with sodium and chloride ions coordinated.

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: PDBTM
Membrane Protein Annotation: MemProtMD
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		e8zqoA1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F:	ECOD (v295)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00474	Sodium:solute symporter family (SSF)	Sodium:solute symporter family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	High affinity choline transporter 1	choline binding cation binding ion binding binding small molecule binding monoatomic cation transmembrane transporter activity choline transmembrane transporter activity solute:sodium symporter activity solute:monoatomic cation symporter activity choline:sodium symporter activity sodium ion transmembrane transporter activity secondary active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity choline binding cation binding ion binding binding small molecule binding monoatomic cation transmembrane transporter activity choline transmembrane transporter activity solute:sodium symporter activity solute:monoatomic cation symporter activity choline:sodium symporter activity sodium ion transmembrane transporter activity secondary active transmembrane transporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity symporter activity	localization transport neurotransmitter transport establishment of localization nitrogen compound transport choline transport biosynthetic process acetylcholine biosynthetic process acetylcholine metabolic process metabolic process cellular process trans-synaptic signaling regulation of biological process signaling localization transport neurotransmitter transport establishment of localization nitrogen compound transport choline transport biosynthetic process acetylcholine biosynthetic process acetylcholine metabolic process metabolic process cellular process trans-synaptic signaling regulation of biological process signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication synaptic signaling anterograde trans-synaptic signaling synaptic transmission, cholinergic carboxylic acid transport lipid localization bile acid and bile salt transport lipid transport organic hydroxy compound transport organic acid transport monocarboxylic acid transport macromolecule localization neuromuscular synaptic transmission	cellular anatomical structure neuromuscular junction synapse cell junction somatodendritic compartment cell body perikaryon neuronal cell body membrane membrane-bounded organelle endosome membrane intracellular anatomical structure early endosome endosome cellular anatomical structure neuromuscular junction synapse cell junction somatodendritic compartment cell body perikaryon neuronal cell body membrane membrane-bounded organelle endosome membrane intracellular anatomical structure early endosome endosome intracellular vesicle early endosome membrane intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane organelle cytoplasm vesicle organelle membrane cell periphery plasma membrane presynapse presynaptic membrane plasma membrane region synaptic membrane transport vesicle membrane synaptic vesicle synaptic vesicle membrane transport vesicle exocytic vesicle membrane secretory vesicle exocytic vesicle axon cell projection neuron projection plasma membrane bounded cell projection dendrite dendritic tree

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR038377	Sodium/glucose symporter superfamily	Homologous Superfamily
A	IPR052244	High-affinity choline transporter	Family
A	IPR001734	Sodium/solute symporter	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: Q9GZV3	congenital myasthenic syndrome neuronopathy, distal hereditary motor, type 7A congenital myasthenic syndrome 20 peripheral neuropathy Unipolar Depression adrenal cortex adenoma Charcot-Marie-Tooth disease interstitial cystitis ovarian cancer psoriasis adrenal cortex carcinoma major depressive disorder neurodegenerative disease peripheral nervous system disease arthrogryposis

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Solute Carrier (SLC) Transporter Superfamily	CHT1 choline transporter (SLC5A7), apo state under NaCl condition

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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.