Neurochondrin (also known as its murine homologue, Norbin) is a protein that in humans is encoded by the NCDNgene.[5][6]
This gene encodes a leucine-rich cytoplasmic protein, which is highly similar to a mouse protein norbin that negatively regulates Ca/calmodulin-dependent protein kinase II phosphorylation and may be essential for spatial learning processes. Several alternatively spliced transcript variants of this gene have been described.[6]
Norbin can modulate signaling activity and expression of metabotropic glutamate receptor 5; modulating mice with targeted deletion of NCDN in the brain have phenotypic traits usually found in the rodent models of schizophrenia, including disruptions in prepulse inhibition.[7] Furthermore, norbin protein expression is altered in the schizophrenia brain.[8] Norbin also plays a role in regulating antimicrobial responses in neutrophils.[9]
^"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.
^Istvánffy R, Vogt Weisenhorn DM, Floss T, Wurst W (April 2004). "Expression of neurochondrin in the developing and adult mouse brain". Development Genes and Evolution. 214 (4): 206–209. doi:10.1007/s00427-004-0396-2. PMID15007648. S2CID45134242.
Mochizuki R, Dateki M, Yanai K, Ishizuka Y, Amizuka N, Kawashima H, et al. (October 2003). "Targeted disruption of the neurochondrin/norbin gene results in embryonic lethality". Biochemical and Biophysical Research Communications. 310 (4): 1219–1226. doi:10.1016/j.bbrc.2003.09.153. PMID14559245.
Ohoka Y, Hirotani M, Sugimoto H, Fujioka S, Furuyama T, Inagaki S (January 2001). "Semaphorin 4C, a transmembrane semaphorin, [corrected] associates with a neurite-outgrowth-related protein, SFAP75". Biochemical and Biophysical Research Communications. 280 (1): 237–243. doi:10.1006/bbrc.2000.4080. PMID11162505.
Mochizuki R, Ishizuka Y, Yanai K, Koga Y, Fukamizu A, Murakami K (September 1999). "Molecular cloning and expression of human neurochondrin-1 and -2". Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression. 1446 (3): 397–402. doi:10.1016/s0167-4781(99)00120-7. PMID10524216.