8CUA

Human excitatory amino acid transporter 3 (EAAT3) with bound potassium in an intermediate outward facing state

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Proton glutamate symport protein	8098692	3001772	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Proton glutamate symport protein	8098692	3001772	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Proton glutamate symport protein	8098692	3001772	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e8cuaA1	A: alpha complex topology	X: Proton glutamate symport protein (From Topology)	H: Proton glutamate symport protein (From Topology)	T: Proton glutamate symport protein	F: F_UNCLASSIFIED	ECOD (1.6)
B	F_UNCLASSIFIED	e8cuaB1	A: alpha complex topology	X: Proton glutamate symport protein (From Topology)	H: Proton glutamate symport protein (From Topology)	T: Proton glutamate symport protein	F: F_UNCLASSIFIED	ECOD (1.6)
C	F_UNCLASSIFIED	e8cuaC1	A: alpha complex topology	X: Proton glutamate symport protein (From Topology)	H: Proton glutamate symport protein (From Topology)	T: Proton glutamate symport protein	F: F_UNCLASSIFIED	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00375	Sodium:dicarboxylate symporter family (SDF)	Sodium:dicarboxylate symporter family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Excitatory amino acid transporter 3	organic cation transmembrane transporter activity sulfur amino acid transmembrane transporter activity sulfur compound transmembrane transporter activity carboxylic acid transmembrane transporter activity amino acid transmembrane transporter activity neutral L-amino acid transmembrane transporter activity cysteine transmembrane transporter activity transporter activity organic acid transmembrane transporter activity transmembrane transporter activity organic anion transmembrane transporter activity L-amino acid transmembrane transporter activity L-aspartate transmembrane transporter activity C4-dicarboxylate transmembrane transporter activity organic cation transmembrane transporter activity sulfur amino acid transmembrane transporter activity sulfur compound transmembrane transporter activity carboxylic acid transmembrane transporter activity amino acid transmembrane transporter activity neutral L-amino acid transmembrane transporter activity cysteine transmembrane transporter activity transporter activity organic acid transmembrane transporter activity transmembrane transporter activity organic anion transmembrane transporter activity L-amino acid transmembrane transporter activity L-aspartate transmembrane transporter activity C4-dicarboxylate transmembrane transporter activity dicarboxylic acid transmembrane transporter activity acidic amino acid transmembrane transporter activity cation binding ion binding binding metal ion binding small molecule binding monoatomic cation transmembrane transporter activity amino acid:sodium symporter activity solute:sodium symporter activity solute:monoatomic cation symporter activity secondary active transmembrane transporter activity active monoatomic ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity amino acid:monoatomic cation symporter activity high-affinity L-glutamate transmembrane transporter activity glutamate:sodium symporter activity L-glutamate transmembrane transporter activity sodium ion transmembrane transporter activity organic acid:sodium symporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity metal ion transmembrane transporter activity symporter activity monoatomic anion transmembrane transporter activity passive transmembrane transporter activity monoatomic ion channel activity channel activity monoatomic anion channel activity D-amino acid transmembrane transporter activity D-aspartate transmembrane transporter activity chloride transmembrane transporter activity inorganic anion transmembrane transporter activity identical protein binding protein binding organic acid binding anion binding amino acid binding carboxylic acid binding glutamate binding	localization transport neurotransmitter transport establishment of localization response to stimulus response to chemical response to xenobiotic stimulus heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation localization transport neurotransmitter transport establishment of localization response to stimulus response to chemical response to xenobiotic stimulus heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation positive regulation of biological process positive regulation of heart rate positive regulation of blood circulation positive regulation of heart contraction circulatory system process regulation of blood circulation positive regulation of multicellular organismal process regulation of multicellular organismal process regulation of biological quality heart contraction blood circulation regulation of heart rate organic acid transmembrane transport organic anion transport nitrogen compound transport carboxylic acid transmembrane transport carboxylic acid transport amino acid transmembrane transport L-amino acid transport L-glutamate import organic acid transport transmembrane transport amino acid transport acidic amino acid transport dicarboxylic acid transport L-alpha-amino acid transmembrane transport cellular process L-glutamate transmembrane transport protein localization regulation of localization cellular localization establishment of protein localization regulation of cellular process regulation of protein localization protein targeting regulation of protein targeting to membrane cellular macromolecule localization regulation of protein localization to membrane establishment of protein localization to membrane regulation of establishment of protein localization localization within membrane protein localization to membrane protein targeting to membrane regulation of cellular localization regulation of protein targeting macromolecule localization cellular response to stimulus cell surface receptor signaling pathway signaling glutamate receptor signaling pathway cell communication signal transduction behavior learning or memory nervous system process cognition memory response to oxidative stress cellular response to chemical stimulus cellular response to stress response to stress cellular response to oxidative stress cellular response to chemical stress amine metabolic process organonitrogen compound metabolic process catecholamine metabolic process phenol-containing compound metabolic process organic hydroxy compound metabolic process dopamine metabolic process metabolic process catechol-containing compound metabolic process biogenic amine metabolic process import into cell aspartate transmembrane transport C4-dicarboxylate transport import across plasma membrane amino acid import across plasma membrane L-aspartate import across plasma membrane L-aspartate transmembrane transport L-glutamate import across plasma membrane response to morphine response to isoquinoline alkaloid response to organonitrogen compound response to nitrogen compound response to organic cyclic compound response to alkaloid trans-synaptic signaling synaptic signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission learning conditioned place preference associative learning neutral amino acid transport organic cation transport sulfur amino acid transport cysteine transport sulfur compound transport vascular process in circulatory system vascular transport transport across blood-brain barrier developmental process blood vessel morphogenesis tube development vasculature development circulatory system development multicellular organism development anatomical structure morphogenesis tube morphogenesis anatomical structure development blood vessel development system development cellular response to organic cyclic compound neurogenesis cellular developmental process cell differentiation nervous system development cellular response to ammonium ion cellular response to nitrogen compound response to ammonium ion neuron apoptotic process apoptotic process motor neuron apoptotic process cell death programmed cell death adult behavior D-amino acid transport D-aspartate transmembrane transport D-aspartate import across plasma membrane cellular component organization cell junction organization synapse organization cellular component organization or biogenesis inorganic ion homeostasis cellular homeostasis chemical homeostasis homeostatic process intracellular monoatomic cation homeostasis intracellular zinc ion homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis biosynthetic process cellular biosynthetic process cellular metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of protein modification process regulation of protein phosphorylation regulation of primary metabolic process regulation of phosphate metabolic process phosphate-containing compound metabolic process protein metabolic process protein modification process phosphorus metabolic process protein phosphorylation phosphorylation regulation of protein metabolic process primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process macromolecule modification regulation of phosphorylation regulation of phosphorus metabolic process regulation of metabolic process maintenance of blood-brain barrier multicellular organismal-level homeostasis anatomical structure homeostasis tissue homeostasis response to amine response to amphetamine retina layer formation camera-type eye morphogenesis sensory organ development eye development animal organ development retina development in camera-type eye visual system development neural retina development retina morphogenesis in camera-type eye eye morphogenesis sensory organ morphogenesis camera-type eye development anatomical structure formation involved in morphogenesis animal organ morphogenesis sensory system development grooming behavior response to wounding response to axon injury head development central nervous system development brain development response to cytokine cytokine-mediated signaling pathway response to peptide cellular response to cytokine stimulus monoatomic ion transmembrane transport inorganic ion transmembrane transport inorganic anion transmembrane transport chloride transport chloride transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport monoatomic ion transport inorganic anion transport response to decreased oxygen levels response to oxygen levels response to abiotic stimulus zinc ion transport metal ion transport inorganic cation transmembrane transport monoatomic cation transmembrane transport zinc ion transmembrane transport transition metal ion transport monoatomic cation transport response to anesthetic intracellular amino acid homeostasis intracellular glutamate homeostasis regulation of signaling modulation of chemical synaptic transmission regulation of trans-synaptic signaling postsynaptic modulation of chemical synaptic transmission regulation of cell communication cellular response to bisphenol A response to oxygen-containing compound cellular response to oxygen-containing compound response to bisphenol A cellular response to metal ion response to mercury ion response to metal ion cellular response to mercury ion response to dopamine cellular response to dopamine response to monoamine cellular response to endogenous stimulus response to catecholamine cellular response to catecholamine stimulus response to endogenous stimulus G protein-coupled dopamine receptor signaling pathway cellular response to organonitrogen compound cellular response to monoamine stimulus G protein-coupled receptor signaling pathway locomotory behavior glutathione metabolic process organonitrogen compound biosynthetic process amide biosynthetic process cellular modified amino acid metabolic process sulfur compound biosynthetic process peptide biosynthetic process cellular modified amino acid biosynthetic process glutathione biosynthetic process sulfur compound metabolic process amide metabolic process nonribosomal peptide biosynthetic process peptide metabolic process superoxide metabolic process reactive oxygen species metabolic process reflex response to external stimulus righting reflex protein localization to cell periphery neurotransmitter receptor transport vesicle-mediated transport protein-containing complex localization vesicle-mediated transport to the plasma membrane neurotransmitter receptor transport to plasma membrane protein transport negative regulation of neuron apoptotic process negative regulation of programmed cell death regulation of apoptotic process negative regulation of biological process regulation of programmed cell death negative regulation of apoptotic process negative regulation of cellular process regulation of neuron apoptotic process transepithelial transport cellular response to cocaine cellular response to alkaloid response to cocaine motor behavior behavioral defense response fear response behavioral fear response defense response multicellular organismal response to stress positive regulation of cell communication long-term synaptic potentiation positive regulation of cellular process regulation of synaptic plasticity positive regulation of synaptic transmission positive regulation of signaling	somatodendritic compartment cell body perikaryon neuronal cell body cellular anatomical entity membrane-bounded organelle endosome membrane intracellular anatomical structure endosome membrane intracellular vesicle late endosome membrane intracellular membrane-bounded organelle endomembrane system somatodendritic compartment cell body perikaryon neuronal cell body cellular anatomical entity membrane-bounded organelle endosome membrane intracellular anatomical structure endosome membrane intracellular vesicle late endosome membrane intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane organelle late endosome cytoplasm vesicle organelle membrane cell projection distal dendrite dendrite dendritic tree neuron projection plasma membrane bounded cell projection extracellular region perisynaptic space neuron spine synapse dendritic spine postsynapse cell junction cell periphery apical part of cell plasma membrane plasma membrane region apical plasma membrane cell surface membrane microdomain membrane raft Schaffer collateral - CA1 synapse neuron to neuron synapse asymmetric synapse apical dendrite proximal dendrite extracellular exosome extracellular vesicle extracellular organelle extracellular space extracellular membrane-bounded organelle synaptic cleft dendritic shaft axon glial cell projection presynapse recycling endosome recycling endosome membrane early endosome early endosome membrane axon terminus distal axon neuron projection terminus endoplasmic reticulum

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR018107	Sodium:dicarboxylate symporter, conserved site	Conserved Site
A, B, C	IPR001991	Sodium:dicarboxylate symporter	Family
A, B, C	IPR036458	Sodium:dicarboxylate symporter superfamily	Homologous Superfamily
A, B, C	IPR050746	Dicarboxylate/Amino Acid:Cation Symporter	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C	Pharos: P43005	dicarboxylic aminoaciduria visual epilepsy low tension glaucoma schizophrenia Cognition Disorders temporal lobe epilepsy epilepsy brain disease retinal degeneration endometriosis bipolar disorder hot water reflex epilepsy schizophrenia 18 cerebral cortical dysplasia depressive disorder

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C	OPM	Transmembrane	Alpha-helical polytopic	Dicarboxylate/amino acid:Cation Symporter (DAACS)	Proton glutamate symport protein

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Solute Carrier (SLC) Transporter Superfamily	EAAT3 excitatory amino acid transporter 3, with bound glutamate, intermediate outward-facing state

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 R01GM133198.