Annotations: 3QLU

Crystal structure of the GluK2/GluK5 (GluR6/KA2) ATD dimer assembly

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d3qlud_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like I	Periplasmic binding protein-like I	automated matches	automated matches	brown rat,rat,rats (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)
C	d3qluc_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like I	Periplasmic binding protein-like I	automated matches	automated matches	brown rat,rat,rats (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	TRI-like_N	e3qluD2	A: beta barrels	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: TRI-like_N	ECOD (v294.2)
D	Glyco_hydro_106	e3qluD1	A: beta barrels	X: Alpha-lytic protease prodomain-like	H: TIM barrels	T: TIM barrels	F: Glyco_hydro_106	ECOD (v294.2)
C	TRI-like_N	e3qluC2	A: beta barrels	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F: TRI-like_N	ECOD (v294.2)
C	Glyco_hydro_106	e3qluC1	A: beta barrels	X: Alpha-lytic protease prodomain-like	H: TIM barrels	T: TIM barrels	F: Glyco_hydro_106	ECOD (v294.2)
B		e3qluB1	A: beta barrels	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F:	ECOD (v294.2)
A		e3qluA1	A: beta barrels	X: omega toxin-like	H: omega toxin-related	T: omega toxin-related	F:	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
C	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
B	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)
A	3.40.50.2300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Response regulator	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C, D	PF01094	Receptor family ligand binding region (ANF_receptor)	Receptor family ligand binding region	This family includes extracellular ligand binding domains of a wide range of receptors. This family also includes the bacterial amino acid binding proteins of known structure.	Domain
A, B	PF01094	Receptor family ligand binding region (ANF_receptor)	Receptor family ligand binding region	This family includes extracellular ligand binding domains of a wide range of receptors. This family also includes the bacterial amino acid binding proteins of known structure.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, 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 monoatomic cation transmembrane transporter activity transmitter-gated monoatomic ion channel activity glutamate-gated receptor activity neurotransmitter receptor activity ligand-gated calcium channel activity ligand-gated monoatomic cation channel activity calcium channel activity glutamate-gated calcium ion channel activity carboxylic acid transmembrane transporter activity amino acid transmembrane transporter activity monoatomic cation channel activity calcium ion transmembrane transporter activity transmitter-gated channel activity metal ion transmembrane transporter activity ubiquitin-like protein conjugating enzyme binding ubiquitin conjugating enzyme binding SNARE binding transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential sodium 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	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 localization cellular localization receptor clustering macromolecule localization intracellular protein 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 establishment of protein localization transport intracellular transport establishment of localization protein transport establishment of localization in cell intracellular protein transport 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 postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure neuron to neuron synapse organelle cell junction postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure 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 ionotropic glutamate receptor complex transmembrane transporter complex neurotransmitter receptor complex plasma membrane signaling receptor complex 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 dendrite cytoplasm cytoplasm hippocampal mossy fiber to CA3 synapse
A, B	Glutamate receptor, ionotropic kainate 5	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 transmitter-gated channel activity monoatomic cation transmembrane transporter activity sodium channel activity glutamate-gated receptor 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 identical protein binding	maintenance of protein location cellular localization maintenance of location maintenance of location in cell localization maintenance of protein localization in endoplasmic reticulum maintenance of protein location in cell macromolecule localization protein localization to organelle cellular process maintenance of protein localization in organelle intracellular protein localization protein localization to endoplasmic reticulum protein retention in ER lumen maintenance of protein location cellular localization maintenance of location maintenance of location in cell localization maintenance of protein localization in endoplasmic reticulum maintenance of protein location in cell macromolecule localization protein localization to organelle cellular process maintenance of protein localization in organelle intracellular protein localization protein localization to endoplasmic reticulum protein retention in ER lumen cellular response to stimulus response to stimulus homeostatic process 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 response to monosaccharide response to carbohydrate chemical homeostasis response to glucose response to chemical glucose homeostasis carbohydrate homeostasis cellular response to hexose stimulus intracellular chemical homeostasis cellular response to monosaccharide stimulus 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 postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure neuron to neuron synapse organelle cell junction postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure 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 ionotropic glutamate receptor complex transmembrane transporter complex neurotransmitter receptor complex plasma membrane signaling receptor complex 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 membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen nuclear lumen glutamatergic synapse hippocampal mossy fiber to CA3 synapse endoplasmic reticulum cytoplasm endomembrane system

InterPro: Protein Family Classification InterPro Database Homepage

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

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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.