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Details on Person UniProt:Q8VHN2 Grin3b

Class:IdReferenceGeneProduct:151152
_chainChangeLogsignal peptide:1-24 added on Fri February 6 2015;chain:25-1002 added on Fri February 6 2015
_displayNameUniProt:Q8VHN2 Grin3b
_timestamp2025-02-21 19:40:48
chainsignal peptide:1-24
chain:25-1002
checksum4AC840EF97E0AB83
commentFUNCTION Component of a non-conventional N-methyl-D-aspartate (NMDA) receptors (NMDARs) that function as heterotetrameric, ligand-gated cation channels with low calcium permeability and low voltage-dependent block by Mg(2+) (PubMed:11823786). Forms glutamatergic receptor complexes with GluN1 and GluN2 subunits which are activated by glycine binding to the GluN1 and GluN3 subunits and L-glutamate binding to GluN2 subunits (By similarity). Forms excitatory glycinergic receptor complexes with GluN1 alone which are activated by glycine binding to the GluN1 and GluN3 subunits (PubMed:11823786). GluN3B subunit also binds D-serine and, in the absence of glycine, activates glycinergic receptor complexes, but with lower efficacy than glycine (PubMed:11823786, PubMed:18636091). Each GluN3 subunit confers differential attributes to channel properties, including activation, deactivation and desensitization kinetics, pH sensitivity, Ca2(+) permeability, and binding to allosteric modulators (By similarity).CATALYTIC ACTIVITY Ca(2+)(in) = Ca(2+)(out)CATALYTIC ACTIVITY Na(+)(in) = Na(+)(out)ACTIVITY REGULATION Excitatory glycine receptors are inhibited by D-serine at a concentrion of 100uM.SUBUNIT Forms heterotetrameric channels that contain at least two GluN1 subunits and at least a combination of one GluN2 and one GluN3 subunits (in vitro) (By similarity). Forms heterotetrameric channels composed of two GluN1/zeta subunits (GRIN1), and two identical GluN3 subunits (GRIN3A or GRIN3B) (in vitro) (Probable). Does not form functional homomeric channels (By similarity).SUBCELLULAR LOCATION Requires the presence of GRIN1 to be targeted at the plasma membrane.TISSUE SPECIFICITY Expressed in the hippocampus, the corpus callosum, in the facial and trigeminal nuclei of the brainstem and the ventral horn of the spinal cord.SIMILARITY Belongs to the glutamate-gated ion channel (TC 1.A.10.1) family. NR3B/GRIN3B subfamily.
created[InstanceEdit:143527] Schmidt, EE, 2004-11-12 07:45:10
descriptionrecommendedName: fullName evidence="9"Glutamate receptor ionotropic, NMDA 3B shortName: GluN3B alternativeName: N-methyl-D-aspartate receptor subtype 3B shortName: NMDAR3B shortName evidence="8"NR3B
geneNameGrin3b
identifierQ8VHN2
isSequenceChangedFALSE
keyword3D-structure
Calcium
Cell membrane
Coiled coil
Disulfide bond
Glycoprotein
Ion channel
Ion transport
Ligand-gated ion channel
Magnesium
Membrane
Postsynaptic cell membrane
Receptor
Reference proteome
Signal
Synapse
Transmembrane
Transmembrane helix
Transport
modified[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
[InstanceEdit:354386] Schmidt, EE, 2008-06-18 04:45:12
[InstanceEdit:384350] Kanapin, AA, 2008-11-26 14:00:39
[InstanceEdit:392885] Kanapin, AA, 2009-03-09 12:07:18
[InstanceEdit:400710] Schmidt, EE, 2009-03-25 05:33:35
[InstanceEdit:423310] Kanapin, AA
[InstanceEdit:435478] Kanapin, AA
[InstanceEdit:435871] Kanapin, AA
[InstanceEdit:447347] Kanapin, AA
[InstanceEdit:525883] Kanapin, AA
[InstanceEdit:613449] Kanapin, AA
[InstanceEdit:797602] Kanapin, AA
[InstanceEdit:937368] Yung, CK
[InstanceEdit:1042053] Yung, CK
[InstanceEdit:1220657] Yung, CK
[InstanceEdit:1300696] Yung, CK
[InstanceEdit:1301627] Yung, CK
[InstanceEdit:1551960] Weiser, JD
[InstanceEdit:1995863] Weiser, JD
[InstanceEdit:2132304] Weiser, JD
[InstanceEdit:2265580] Weiser, JD
[InstanceEdit:3132113] Weiser, JD
[InstanceEdit:3445779] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9657908] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9796772] Weiser, Joel
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9939033] Weiser, Joel, 2025-02-21
nameGrin3b
referenceDatabase[ReferenceDatabase:2] UniProt
secondaryIdentifierNMD3B_RAT
sequenceLength1002
species[Species:48895] Rattus norvegicus
(referenceEntity)[EntityWithAccessionedSequence:9610228] Grin3b [endoplasmic reticulum membrane] [Rattus norvegicus]
[EntityWithAccessionedSequence:9610788] Grin3b [plasma membrane] [Rattus norvegicus]
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No pathways have been reviewed or authored by UniProt:Q8VHN2 Grin3b (151152)