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Details on Person UniProt:Q8NFZ4 NLGN2

Class:IdReferenceGeneProduct:96402
_chainChangeLogsignal peptide:1-14 added on Fri February 6 2015;chain:15-835 added on Fri February 6 2015
_displayNameUniProt:Q8NFZ4 NLGN2
_timestamp2026-02-20 21:42:05
chainsignal peptide:1-14
chain:15-835
checksum359938630193EF87
commentFUNCTION Transmembrane scaffolding protein involved in cell-cell interactions via its interactions with neurexin family members. Mediates cell-cell interactions both in neurons and in other types of cells, such as Langerhans beta cells. Plays a role in synapse function and synaptic signal transmission, especially via gamma-aminobutyric acid receptors (GABA(A) receptors). Functions by recruiting and clustering synaptic proteins. Promotes clustering of postsynaptic GABRG2 and GPHN. Promotes clustering of postsynaptic LHFPL4 (By similarity). Modulates signaling by inhibitory synapses, and thereby plays a role in controlling the ratio of signaling by excitatory and inhibitory synapses and information processing. Required for normal signal amplitude from inhibitory synapses, but is not essential for normal signal frequency. May promote the initial formation of synapses, but is not essential for this. In vitro, triggers the de novo formation of presynaptic structures. Mediates cell-cell interactions between Langerhans beta cells and modulates insulin secretion (By similarity).SUBUNIT Interacts with neurexins NRXN1, NRXN2 and NRXN3 (By similarity). Interaction with neurexins is mediated by heparan sulfate glycan modification on neurexin (By similarity). Interacts (via its C-terminus) with DLG4/PSD-95 (via PDZ domain 3) (PubMed:9278515). Interacts with PATJ (By similarity). Interacts with GPHN (By similarity). Interacts with MDGA1 and MDGA2 (By similarity). Found in a complex with MAGI2 and IGSF9B, where it interacts with MAGI2 (via WW 1, WW 2 and PDZ 2 domains) (PubMed:23751499). Identified in a complex of 720 kDa composed of LHFPL4, NLGN2, GABRA1, GABRB2, GABRG2 and GABRB3 (By similarity). Interacts with LHFPL4; leading to mutual regulation of the protein level and synaptic clustering (By similarity). Interacts with NLGN2 (By similarity).INTERACTION Detected at postsynaptic membranes in brain. Colocalizes with GPHN and ARHGEF9 at neuronal cell membranes (By similarity). Localized at presynaptic membranes in retina. Colocalizes with GABRG2 at inhibitory synapses in the retina. Localizes to dendritic membrane (By similarity).TISSUE SPECIFICITY Expressed in the blood vessel walls. Detected in colon, brain and pancreas islets of Langerhans (at protein level). Detected in brain, and at lower levels in pancreas islet beta cells.PTM N-glycosylated, contains high-mannose, hybrid, complex and sialylated N-glycans (PubMed:37865312). N-glycosylation is essential for localization to synapses, dendrites, and the cell membrane, and enhances its availability for trans-synaptic adhesion. O-glycosylated (By similarity).SIMILARITY Belongs to the type-B carboxylesterase/lipase family.
descriptionrecommendedName: Neuroligin-2
geneNameNLGN2
KIAA1366
identifierQ8NFZ4
isSequenceChangedFALSE
keyword3D-structure
Cell adhesion
Cell membrane
Cell projection
Disulfide bond
Glycoprotein
Membrane
Phosphoprotein
Postsynaptic cell membrane
Proteomics identification
Reference proteome
Signal
Synapse
Transmembrane
Transmembrane helix
modified[InstanceEdit:143527] Schmidt, EE, 2004-11-12 07:45:10
[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:2455454] Weiser, JD
[InstanceEdit:5263031] Weiser, JD
[InstanceEdit:5433710] Weiser, JD
[InstanceEdit:5618415] Weiser, JD
[InstanceEdit:5634237] Weiser, JD
[InstanceEdit:5673015] Weiser, JD
[InstanceEdit:6807888] Weiser, JD
[InstanceEdit:8987656] Weiser, JD
[InstanceEdit:9027688] Weiser, JD
[InstanceEdit:9037114] Weiser, JD
[InstanceEdit:9637257] Weiser, JD
[InstanceEdit:9657908] Weiser, JD
[InstanceEdit:9666080] Weiser, JD
[InstanceEdit:9676415] Weiser, JD
[InstanceEdit:9796772] Weiser, Joel
[InstanceEdit:9834092] Weiser, Joel
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9983091] Weiser, Joel, 2026-02-20
nameNLGN2
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8999030] ENSEMBL:ENSG00000169992 NLGN2 [Homo sapiens]
secondaryIdentifierNLGN2_HUMAN
Q9P2I1
sequenceLength835
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:418337] NLGN2 [plasma membrane] [Homo sapiens]
[EntityWithAccessionedSequence:6788639] NLGN2 [plasma membrane] [Homo sapiens]
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No pathways have been reviewed or authored by UniProt:Q8NFZ4 NLGN2 (96402)