NRXN3

NRXN3
Identifiers
Aliases	NRXN3, C14orf60, neurexin 3
External IDs	OMIM: 600567; MGI: 1096389; GeneCards: NRXN3; OMA:NRXN3 - orthologs
Gene location (Human)
Chr.	Chromosome 14 (human)
End	79,868,291 bp
Gene location (Mouse)
Chr.	Chromosome 12 (mouse)
End	90,334,935 bp
RNA expression pattern
	Top expressed in
	cerebellar vermis; ; Pars compacta; ; pars reticulata; ; pons; ; Brodmann area 23; ; cerebellar hemisphere; ; right hemisphere of cerebellum; ; middle temporal gyrus; ; superior vestibular nucleus; ; external globus pallidus;
	Top expressed in
	Rostral migratory stream; ; lateral septal nucleus; ; piriform cortex; ; lobe of cerebellum; ; cerebellar vermis; ; lateral geniculate nucleus; ; medial geniculate nucleus; ; anterior amygdaloid area; ; lateral hypothalamus; ; nucleus accumbens;
	More reference expression data
	; ; ; ;
	More reference expression data
Gene ontology
Molecular function	neuroligin family protein binding; transmembrane signaling receptor activity; cell adhesion molecule binding; metal ion binding; signaling receptor activity;
Cellular component	integral component of membrane; membrane; plasma membrane; integral component of plasma membrane;
Biological process	neuron cell-cell adhesion; social behavior; vocalization behavior; adult behavior; cell adhesion; learning; angiogenesis; signal transduction; axon guidance; positive regulation of synapse assembly; positive regulation of synapse maturation; synapse assembly; neurotransmitter secretion; chemical synaptic transmission;
	Sources:Amigo / QuickGO
Orthologs
	9369
	18191
	ENSG00000021645
	ENSMUSG00000066392
	Q9HDB5
	Q6P9K9; Q8C985
NM_001105250; NM_001272020; NM_004796; NM_138970; NM_001330195;
	NM_001366425; NM_001366426
	NM_001198587; NM_001252074; NM_172544
NP_001098720; NP_001258949; NP_001317124; NP_004787; NP_620426;
	NP_001353354; NP_001353355; NP_004787.2
	NP_001185516; NP_001239003; NP_766132; NP_001239003.1
	Wikidata
View/Edit Human	View/Edit Mouse

Neurexin-3-alpha is a protein that in humans is encoded by the NRXN3 gene.^[5]^[6]^[7]

Neurexins are a family of proteins that function in the vertebrate nervous system as cell adhesion molecules and receptors. They are encoded by several unlinked genes of which two, NRXN1 and NRXN3, are among the largest known human genes. Three of the genes (NRXN1-3) utilize two alternate promoters and include numerous alternatively spliced exons to generate thousands of distinct mRNA transcripts and protein isoforms. The majority of transcripts are produced from the upstream promoter and encode alpha-neurexin isoforms; a much smaller number of transcripts are produced from the downstream promoter and encode beta-neurexin isoforms. The alpha-neurexins contain epidermal growth factor-like (EGF-like) sequences and laminin G domains, and have been shown to interact with neurexophilins. The beta-neurexins lack EGF-like sequences and contain fewer laminin G domains than alpha-neurexins.^[7] NRXN3 is thought to be involved in synaptic plasticity, and polymorphisms in NRXN3 have been linked to genetic predisposition towards a number of conditions such as alcohol or drug addiction,^[8]^[9]^[10] or obesity.^[11]

References

^ ^a ^b ^c GRCh38: Ensembl release 89: ENSG00000021645 – Ensembl, May 2017
^ ^a ^b ^c GRCm38: Ensembl release 89: ENSMUSG00000066392 – Ensembl, May 2017
^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^ Rowen L, Young J, Birditt B, Kaur A, Madan A, Philipps DL, Qin S, Minx P, Wilson RK, Hood L, Graveley BR (Apr 2002). "Analysis of the human neurexin genes: alternative splicing and the generation of protein diversity". Genomics. 79 (4): 587–97. doi:10.1006/geno.2002.6734. PMID 11944992.
^ Occhi G, Rampazzo A, Beffagna G, Antonio Danieli G (Oct 2002). "Identification and characterization of heart-specific splicing of human neurexin 3 mRNA (NRXN3)". Biochem Biophys Res Commun. 298 (1): 151–5. doi:10.1016/S0006-291X(02)02403-8. PMID 12379233.
^ ^a ^b "Entrez Gene: NRXN3 neurexin 3".
^ Lachman HM, Fann CS, Bartzis M, Evgrafov OV, Rosenthal RN, Nunes EV, Miner C, Santana M, Gaffney J, Riddick A, Hsu CL, Knowles JA (June 2007). "Genomewide suggestive linkage of opioid dependence to chromosome 14q". Human Molecular Genetics. 16 (11): 1327–34. doi:10.1093/hmg/ddm081. PMID 17409192.
^ Hishimoto A, Liu QR, Drgon T, Pletnikova O, Walther D, Zhu XG, Troncoso JC, Uhl GR (December 2007). "Neurexin 3 polymorphisms are associated with alcohol dependence and altered expression of specific isoforms". Human Molecular Genetics. 16 (23): 2880–91. doi:10.1093/hmg/ddm247. PMID 17804423.
^ Kelai S, Maussion G, Noble F, Boni C, Ramoz N, Moalic JM, Peuchmaur M, Gorwood P, Simonneau M (May 2008). "Nrxn3 upregulation in the globus pallidus of mice developing cocaine addiction". NeuroReport. 19 (7): 751–5. doi:10.1097/WNR.0b013e3282fda231. PMC 4710739. PMID 18418251.
^ Heard-Costa NL, Zillikens MC, Monda KL, Johansson A, Harris TB, Fu M, Haritunians T, Feitosa MF, Aspelund T, Eiriksdottir G, Garcia M, Launer LJ, Smith AV, Mitchell BD, McArdle PF, Shuldiner AR, Bielinski SJ, Boerwinkle E, Brancati F, Demerath EW, Pankow JS, Arnold AM, Chen YD, Glazer NL, McKnight B, Psaty BM, Rotter JI, Amin N, Campbell H, Gyllensten U, Pattaro C, Pramstaller PP, Rudan I, Struchalin M, Vitart V, Gao X, Kraja A, Province MA, Zhang Q, Atwood LD, Dupuis J, Hirschhorn JN, Jaquish CE, O'Donnell CJ, Vasan RS, White CC, Aulchenko YS, Estrada K, Hofman A, Rivadeneira F, Uitterlinden AG, Witteman JC, Oostra BA, Kaplan RC, Gudnason V, O'Connell JR, Borecki IB, van Duijn CM, Cupples LA, Fox CS, North KE (June 2009). Dermitzakis ET (ed.). "NRXN3 Is a Novel Locus for Waist Circumference: A Genome-Wide Association Study from the CHARGE Consortium". PLOS Genetics. 5 (6): e1000539. doi:10.1371/journal.pgen.1000539. PMC 2695005. PMID 19557197.