Annotations: 7KS3

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Type 2 solute binding protein-like	8032346	3000083	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Type 2 solute binding protein-like	8032346	3000083	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	PF00060	e7ks3A2	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: PF00060	ECOD (1.6)
A	PF01094	e7ks3A4	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: PF01094	ECOD (1.6)
A	F_UNCLASSIFIED	e7ks3A1	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF10613	e7ks3A3	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: PF10613	ECOD (1.6)
C	PF00060	e7ks3C4	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: PF00060	ECOD (1.6)
C	PF01094	e7ks3C3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: PF01094	ECOD (1.6)
C	F_UNCLASSIFIED	e7ks3C2	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: F_UNCLASSIFIED	ECOD (1.6)
C	PF10613	e7ks3C1	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: PF10613	ECOD (1.6)
B	PF00060	e7ks3B1	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: PF00060	ECOD (1.6)
B	PF01094	e7ks3B4	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: PF01094	ECOD (1.6)
B	F_UNCLASSIFIED	e7ks3B5	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: F_UNCLASSIFIED	ECOD (1.6)
B	PF10613	e7ks3B2	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: PF10613	ECOD (1.6)
D	PF00060	e7ks3D1	A: alpha complex topology	X: Voltage-gated ion channels (From Topology)	H: Voltage-gated ion channels (From Topology)	T: Voltage-gated ion channels	F: PF00060	ECOD (1.6)
D	PF01094	e7ks3D3	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Periplasmic binding protein-like I	F: PF01094	ECOD (1.6)
D	F_UNCLASSIFIED	e7ks3D2	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: F_UNCLASSIFIED	ECOD (1.6)
D	PF10613	e7ks3D5	A: a/b three-layered sandwiches	X: Periplasmic binding protein-like II (From Topology)	H: Periplasmic binding protein-like II (From Topology)	T: Periplasmic binding protein-like II	F: PF10613	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C	PF00060	Ligand-gated ion channel (Lig_chan)	Ligand-gated ion channel	-	Family
A, C	PF01094	Receptor family ligand binding region (ANF_receptor)	Receptor family ligand binding region	-	Family
B, D	PF00060	Ligand-gated ion channel (Lig_chan)	Ligand-gated ion channel	-	Family
B, D	PF01094	Receptor family ligand binding region (ANF_receptor)	Receptor family ligand binding region	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	Glutamate receptor ionotropic, kainate 5,Green fluorescent protein chimera	protein binding binding PDZ domain binding protein domain specific binding glutamate receptor activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity ligand-gated channel activity ligand-gated monoatomic ion channel activity passive transmembrane transporter activity gated channel activity ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential monoatomic ion channel activity protein binding binding PDZ domain binding protein domain specific binding glutamate receptor activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity ligand-gated channel activity ligand-gated monoatomic ion channel activity passive transmembrane transporter activity gated channel activity ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential monoatomic ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity SH3 domain binding transmitter-gated monoatomic ion channel activity transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential neurotransmitter receptor activity extracellular ligand-gated monoatomic ion channel activity postsynaptic neurotransmitter receptor activity neurotransmitter receptor activity involved in regulation of postsynaptic membrane potential transmitter-gated channel activity monoatomic cation transmembrane transporter activity sodium channel activity glutamate-gated receptor activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity ligand-gated monoatomic cation channel activity kainate selective glutamate receptor activity potassium ion transmembrane transporter activity ligand-gated sodium channel activity sodium ion transmembrane transporter activity carboxylic acid transmembrane transporter activity potassium channel activity amino acid transmembrane transporter activity monoatomic cation channel activity metal ion transmembrane transporter activity organic acid transmembrane transporter activity organic anion transmembrane transporter activity identical protein binding	bioluminescence cellular metabolic process metabolic process cellular process generation of precursor metabolites and energy maintenance of protein location protein localization cellular localization maintenance of location maintenance of location in cell localization maintenance of protein localization in endoplasmic reticulum maintenance of protein location in cell cellular macromolecule localization bioluminescence cellular metabolic process metabolic process cellular process generation of precursor metabolites and energy maintenance of protein location protein localization cellular localization maintenance of location maintenance of location in cell localization maintenance of protein localization in endoplasmic reticulum maintenance of protein location in cell cellular macromolecule localization macromolecule localization protein localization to organelle maintenance of protein localization in organelle protein localization to endoplasmic reticulum protein retention in ER lumen cellular response to stimulus response to organic substance response to stimulus homeostatic process response to monosaccharide response to carbohydrate carbohydrate homeostasis cellular response to hexose stimulus intracellular chemical homeostasis cellular response to monosaccharide stimulus cellular response to organic substance response to oxygen-containing compound cellular response to glucose stimulus intracellular glucose homeostasis cellular response to oxygen-containing compound response to hexose cellular response to carbohydrate stimulus cellular response to chemical stimulus cellular homeostasis chemical homeostasis response to glucose response to chemical glucose homeostasis regulation of biological process neuron apoptotic process positive regulation of programmed cell death regulation of cellular process regulation of apoptotic process biological regulation positive regulation of biological process regulation of programmed cell death cell death positive regulation of apoptotic process apoptotic process positive regulation of neuron apoptotic process programmed cell death positive regulation of cellular process regulation of neuron apoptotic process establishment of localization in cell establishment of localization trans-synaptic signaling regulation of signaling modulation of chemical synaptic transmission signaling cell-cell signaling chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication multicellular organismal process regulation of postsynaptic membrane potential system process chemical synaptic transmission, postsynaptic signal transduction regulation of biological quality cell surface receptor signaling pathway nervous system process excitatory postsynaptic potential regulation of membrane potential regulation of localization regulated exocytosis membrane fusion synaptic vesicle cycle synaptic vesicle exocytosis vesicle-mediated transport vesicle-mediated transport in synapse vesicle organization regulation of synaptic vesicle membrane organization endomembrane system organization vesicle fusion to plasma membrane neurotransmitter secretion neurotransmitter transport regulation of organelle organization organelle fusion signal release from synapse exocytosis vesicle fusion regulation of cellular component organization transport organelle membrane fusion regulation of vesicle fusion cellular component organization secretion by cell signal release cellular component organization or biogenesis regulation of synaptic vesicle fusion to presynaptic active zone membrane membrane organization regulation of transport secretion export from cell synaptic vesicle fusion to presynaptic active zone membrane regulation of vesicle-mediated transport organelle organization synaptic vesicle membrane organization exocytic process receptor clustering localization within membrane protein localization to membrane synaptic transmission, glutamatergic	postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane cellular anatomical entity postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse neuron to neuron synapse organelle cell junction postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane cellular anatomical entity postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse neuron to neuron synapse organelle cell junction postsynaptic membrane asymmetric synapse plasma membrane region somatodendritic compartment cell body perikaryon neuronal cell body protein-containing complex sodium channel complex plasma membrane protein complex membrane protein complex potassium channel complex cation channel complex transporter complex kainate selective glutamate receptor complex receptor complex ionotropic glutamate receptor complex transmembrane transporter complex neurotransmitter receptor complex plasma membrane signaling receptor complex monoatomic ion channel complex axon neuron projection axon terminus plasma membrane bounded cell projection presynapse cell projection distal axon terminal bouton neuron projection terminus presynaptic membrane dendrite dendritic tree glutamatergic synapse hippocampal mossy fiber to CA3 synapse membrane-bounded organelle intracellular organelle intracellular anatomical structure endoplasmic reticulum cytoplasm intracellular membrane-bounded organelle endomembrane system
B, D	Glutamate receptor ionotropic, kainate 2	gated channel activity monoatomic ion channel activity excitatory extracellular ligand-gated monoatomic ion channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity passive transmembrane transporter activity extracellularly glutamate-gated ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity ubiquitin protein ligase binding protein binding gated channel activity monoatomic ion channel activity excitatory extracellular ligand-gated monoatomic ion channel activity ligand-gated channel activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity passive transmembrane transporter activity extracellularly glutamate-gated ion channel activity channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity ubiquitin protein ligase binding protein binding binding ubiquitin-like protein ligase binding enzyme binding identical protein binding PDZ domain binding protein domain specific binding glutamate receptor activity molecular transducer activity transmembrane signaling receptor activity signaling receptor activity ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential scaffold protein binding ubiquitin-like protein conjugating enzyme binding ubiquitin conjugating enzyme binding SNARE binding transmitter-gated monoatomic ion channel activity carboxylic acid transmembrane transporter activity glutamate-gated receptor activity neurotransmitter receptor activity amino acid transmembrane transporter activity transmitter-gated channel activity organic acid transmembrane transporter activity organic anion transmembrane transporter activity transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential postsynaptic neurotransmitter receptor activity neurotransmitter receptor activity involved in regulation of postsynaptic membrane potential monoatomic cation transmembrane transporter activity sodium channel activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity ligand-gated monoatomic cation channel activity kainate selective glutamate receptor activity potassium ion transmembrane transporter activity ligand-gated sodium channel activity sodium ion transmembrane transporter activity potassium channel activity monoatomic cation channel activity metal ion transmembrane transporter activity	cellular response to stimulus multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process response to stimulus signaling modulation of chemical synaptic transmission regulation of system process regulation of signal transduction chemical synaptic transmission, postsynaptic cell communication synaptic signaling modulation of excitatory postsynaptic potential cellular response to stimulus multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process response to stimulus signaling modulation of chemical synaptic transmission regulation of system process regulation of signal transduction chemical synaptic transmission, postsynaptic cell communication synaptic signaling modulation of excitatory postsynaptic potential regulation of multicellular organismal process signal transduction regulation of biological quality trans-synaptic signaling regulation of biological process regulation of signaling cell surface receptor signaling pathway nervous system process biological regulation cell-cell signaling chemical synaptic transmission regulation of nervous system process regulation of trans-synaptic signaling regulation of response to stimulus anterograde trans-synaptic signaling regulation of cell communication cellular process excitatory postsynaptic potential regulation of membrane potential regulation of JNK cascade regulation of MAPK cascade intracellular signal transduction regulation of intracellular signal transduction JNK cascade intracellular signaling cassette MAPK cascade presynaptic modulation of chemical synaptic transmission detection of external stimulus thermoception detection of cold stimulus involved in thermoception response to external stimulus sensory perception of temperature stimulus detection of temperature stimulus involved in sensory perception response to temperature stimulus detection of abiotic stimulus detection of stimulus sensory perception detection of temperature stimulus involved in thermoception sensory perception of cold stimulus detection of temperature stimulus response to abiotic stimulus detection of stimulus involved in sensory perception neuron apoptotic process positive regulation of programmed cell death regulation of apoptotic process positive regulation of biological process regulation of programmed cell death cell death positive regulation of apoptotic process apoptotic process positive regulation of neuron apoptotic process programmed cell death positive regulation of cellular process regulation of neuron apoptotic process inorganic ion homeostasis intracellular calcium ion homeostasis homeostatic process calcium ion homeostasis cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis regulation of neuronal synaptic plasticity regulation of synaptic plasticity regulation of long-term neuronal synaptic plasticity negative regulation of signaling synaptic transmission, glutamatergic negative regulation of biological process regulation of synaptic transmission, glutamatergic negative regulation of synaptic transmission negative regulation of cell communication negative regulation of cellular process negative regulation of synaptic transmission, glutamatergic inhibitory postsynaptic potential protein localization localization cellular localization receptor clustering cellular macromolecule localization macromolecule localization localization within membrane protein localization to membrane positive regulation of cell communication positive regulation of synaptic transmission positive regulation of signaling negative regulation of neuron apoptotic process negative regulation of programmed cell death negative regulation of apoptotic process regulation of short-term neuronal synaptic plasticity action potential transmission of nerve impulse neuronal action potential behavioral defense response behavior fear response behavioral fear response defense response response to stress multicellular organismal response to stress	postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane cellular anatomical entity postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse neuron to neuron synapse organelle cell junction postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane cellular anatomical entity postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse neuron to neuron synapse organelle cell junction postsynaptic membrane asymmetric synapse plasma membrane region somatodendritic compartment cell body perikaryon neuronal cell body protein-containing complex sodium channel complex plasma membrane protein complex membrane protein complex potassium channel complex cation channel complex transporter complex kainate selective glutamate receptor complex receptor complex ionotropic glutamate receptor complex transmembrane transporter complex neurotransmitter receptor complex plasma membrane signaling receptor complex monoatomic ion channel complex presynapse presynaptic membrane cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection glutamatergic synapse axon axon terminus distal axon terminal bouton neuron projection terminus mossy fiber rosette neuron projection cytoplasm intracellular anatomical structure cytoplasmic region plasma membrane bounded cell projection cytoplasm dendrite cytoplasm cytoplasm hippocampal mossy fiber to CA3 synapse

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR000786	Green fluorescent protein, GFP	Family
A, C	IPR011584	Green fluorescent protein-related	Family
A, C	IPR009017	Green fluorescent protein	Homologous Superfamily
A, C	IPR001320	Ionotropic glutamate receptor, C-terminal	Domain
A, C	IPR028082	Periplasmic binding protein-like I	Homologous Superfamily
A, C	IPR019594	Ionotropic glutamate receptor, L-glutamate and glycine-binding domain	Domain
A, C	IPR015683	Ionotropic glutamate receptor	Family
A, C	IPR001508	Ionotropic glutamate receptor, metazoa	Family
A, C	IPR001828	Receptor, ligand binding region	Domain
B, D	IPR028082	Periplasmic binding protein-like I	Homologous Superfamily
B, D	IPR001508	Ionotropic glutamate receptor, metazoa	Family
B, D	IPR001828	Receptor, ligand binding region	Domain
B, D	IPR001320	Ionotropic glutamate receptor, C-terminal	Domain
B, D	IPR019594	Ionotropic glutamate receptor, L-glutamate and glycine-binding domain	Domain
B, D	IPR015683	Ionotropic glutamate receptor	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D	OPM	Transmembrane	Alpha-helical polytopic	Ion channel (VIC) superfamily	Glutamate-gated Ion Channel (GIC) family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Other Ion Channels	GluK2/K5 heteromeric Glutamate receptor (Kainate-subtype) in complex with with 6-Cyano-7-nitroquinoxaline-2,3-dione (CNQX)

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.