3M3K | pdb_00003m3k

Ligand binding domain (S1S2) of GluA3 (flop)

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)
A	d3m3ka_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like II	Periplasmic binding protein-like II	Phosphate binding protein-like	automated matches	brown rat,rat,rats (Rattus norvegicus ) [TaxId: 10116 ], brown rat,rat,rats (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)
B [auth C]	d3m3kc_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like II	Periplasmic binding protein-like II	Phosphate binding protein-like	automated matches	brown rat,rat,rats (Rattus norvegicus ) [TaxId: 10116 ], brown rat,rat,rats (Rattus norvegicus ) [TaxId: 10116 ],	SCOPe (2.08)
C [auth E]	d3m3ke_	Alpha and beta proteins (a/b)	Periplasmic binding protein-like II	Periplasmic binding protein-like II	Phosphate binding protein-like	automated matches	brown rat,rat,rats (Rattus norvegicus ) [TaxId: 10116 ], 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)
A		e3m3kA1	A: Four-helical up-and-down bundle	X: Glycosyl hydrolase domain	H: Glycosyl hydrolase domain	T: LysR_substrate	F:	ECOD (20:10:01)
B [auth C]		e3m3kC1	A: Four-helical up-and-down bundle	X: Glycosyl hydrolase domain	H: Glycosyl hydrolase domain	T: LysR_substrate	F:	ECOD (20:10:01)
C [auth E]		e3m3kE1	A: Four-helical up-and-down bundle	X: Glycosyl hydrolase domain	H: Glycosyl hydrolase domain	T: LysR_substrate	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.190.10	Alpha Beta	3-Layer(aba) Sandwich	D-Maltodextrin-Binding Protein	domain 2	CATH (4.3.0)
B [auth C]	3.40.190.10	Alpha Beta	3-Layer(aba) Sandwich	D-Maltodextrin-Binding Protein	domain 2	CATH (4.3.0)
C [auth E]	3.40.190.10	Alpha Beta	3-Layer(aba) Sandwich	D-Maltodextrin-Binding Protein	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B [auth C], C [auth E]	PF00060	Ligand-gated ion channel (Lig_chan)	Ligand-gated ion channel	-	Family
A, B [auth C], C [auth E]	PF10613	Ligated ion channel L-glutamate- and glycine-binding site (Lig_chan-Glu_bd)	Ligated ion channel L-glutamate- and glycine-binding site	This region, sometimes called the S1 domain, is the luminal domain just upstream of the first, M1, transmembrane region of transmembrane ion-channel proteins, and it binds L-glutamate and glycine [2]. It is found in association with Lig_chan, Pfam:PF ...	This region, sometimes called the S1 domain, is the luminal domain just upstream of the first, M1, transmembrane region of transmembrane ion-channel proteins, and it binds L-glutamate and glycine [2]. It is found in association with Lig_chan, Pfam:PF00060.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth C], C [auth E]	Glutamate receptor 3	transmitter-gated monoatomic ion channel activity glutamate receptor activity molecular transducer activity gated channel activity monoatomic ion channel activity signaling receptor activity carboxylic acid transmembrane transporter activity glutamate-gated receptor activity neurotransmitter receptor activity ligand-gated channel activity AMPA glutamate receptor activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity amino acid transmembrane transporter activity passive transmembrane transporter activity transmitter-gated monoatomic ion channel activity glutamate receptor activity molecular transducer activity gated channel activity monoatomic ion channel activity signaling receptor activity carboxylic acid transmembrane transporter activity glutamate-gated receptor activity neurotransmitter receptor activity ligand-gated channel activity AMPA glutamate receptor activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity amino acid transmembrane transporter activity passive transmembrane transporter activity channel activity transmembrane signaling receptor activity transmitter-gated channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity amyloid-beta binding binding peptide binding calcium channel activity monoatomic cation transmembrane transporter activity monoatomic cation channel activity calcium ion transmembrane transporter activity ligand-gated calcium channel activity metal ion transmembrane transporter activity ligand-gated monoatomic cation channel activity ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential glutamate-gated calcium ion channel activity transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential	protein-containing complex organization protein heterotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly cellular process cellular component organization or biogenesis protein heterooligomerization protein homotetramerization protein homooligomerization trans-synaptic signaling protein-containing complex organization protein heterotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly cellular process cellular component organization or biogenesis protein heterooligomerization protein homotetramerization protein homooligomerization trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process modulation of chemical synaptic transmission signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication response to lithium ion response to stimulus response to metal ion response to chemical response to antibiotic response to fungicide response to toxic substance cellular response to acid chemical cellular response to stimulus cellular response to nitrogen compound cellular response to amino acid stimulus response to glycine response to oxygen-containing compound response to nitrogen compound response to amino acid cellular response to glycine cellular response to oxygen-containing compound response to acid chemical cellular response to chemical stimulus positive regulation of cell communication positive regulation of biological process long-term synaptic potentiation regulation of biological quality positive regulation of cellular process regulation of synaptic plasticity positive regulation of synaptic transmission positive regulation of signaling synaptic transmission, glutamatergic regulation of receptor recycling regulation of macromolecule metabolic process receptor recycling receptor metabolic process metabolic process macromolecule metabolic process regulation of metabolic process	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 plasma membrane protein complex membrane protein complex transporter complex receptor complex AMPA glutamate receptor complex ionotropic glutamate receptor complex neurotransmitter receptor complex transmembrane transporter 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 parallel fiber to Purkinje cell synapse excitatory synapse presynaptic membrane synaptic cleft extracellular region dendrite dendritic tree glutamatergic synapse presynaptic active zone membrane presynaptic active zone dendritic shaft neuron spine dendritic spine

InterPro: Protein Family Classification InterPro Database Homepage

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

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.