Vascular non-inflammatory molecule 2 is a protein that in humans is encoded by the VNN2gene.[1][2][3]
This gene product is a member of the Vanin family of proteins which share extensive sequence similarity with each other, and also with biotinidase. The family includes secreted and membrane-associated proteins, a few of which have been reported to participate in hematopoietic cell trafficking. No biotinidase activity has been demonstrated for any of the vanin proteins, however, they possess pantetheinase activity, which may play a role in oxidative-stress response. The encoded protein is a GPI-anchored cell surface molecule that plays a role in transendothelial migration of neutrophils. This gene lies in close proximity to, and in same transcriptional orientation as two other vanin genes on chromosome 6q23-q24. Two transcript variants encoding different isoforms have been described for this gene.[3]
References
↑Galland F, Malergue F, Bazin H, Mattei MG, Aurrand-Lions M, Theillet C, Naquet P (Dec 1998). "Two human genes related to murine vanin-1 are located on the long arm of human chromosome 6". Genomics. 53 (2): 203–13. doi:10.1006/geno.1998.5481. PMID9790769.
↑Martin F, Malergue F, Pitari G, Philippe JM, Philips S, Chabret C, Granjeaud S, Mattei MG, Mungall AJ, Naquet P, Galland F (Aug 2001). "Vanin genes are clustered (human 6q22-24 and mouse 10A2B1) and encode isoforms of pantetheinase ectoenzymes". Immunogenetics. 53 (4): 296–306. doi:10.1007/s002510100327. PMID11491533.
Suzuki K, Watanabe T, Sakurai S, et al. (1999). "A novel glycosylphosphatidyl inositol-anchored protein on human leukocytes: a possible role for regulation of neutrophil adherence and migration". J. Immunol. 162 (7): 4277–84. PMID10201959.
Dahlgren C, Karlsson A, Sendo F (2001). "Neutrophil secretory vesicles are the intracellular reservoir for GPI-80, a protein with adhesion-regulating potential". J. Leukoc. Biol. 69 (1): 57–62. PMID11200068.
Watanabe T, Sendo F (2002). "Physical association of beta 2 integrin with GPI-80, a novel glycosylphosphatidylinositol-anchored protein with potential for regulating adhesion and migration". Biochem. Biophys. Res. Commun. 294 (3): 692–4. doi:10.1016/S0006-291X(02)00538-7. PMID12056825.
Takeda Y, Fu J, Suzuki K, et al. (2003). "Expression of GPI-80, a beta2-integrin-associated glycosylphosphatidylinositol-anchored protein, requires neutrophil differentiation with dimethyl sulfoxide in HL-60 cells". Exp. Cell Res. 286 (2): 199–208. doi:10.1016/S0014-4827(03)00071-5. PMID12749849.
Sendo D, Takeda Y, Ishikawa H, et al. (2004). "Localization of GPI-80, a beta2-integrin-associated glycosylphosphatidyl-inositol anchored protein, on strongly CD14-positive human monocytes". Immunobiology. 207 (3): 217–21. doi:10.1078/0171-2985-00235. PMID12777063.
Sasaki H, Ide N, Sendo F, et al. (2004). "Glycosylphosphatidyl inositol-anchored protein (GPI-80) gene expression is correlated with human thymoma stage". Cancer Sci. 94 (9): 809–13. doi:10.1111/j.1349-7006.2003.tb01523.x. PMID12967480.
Mungall AJ, Palmer SA, Sims SK, et al. (2003). "The DNA sequence and analysis of human chromosome 6". Nature. 425 (6960): 805–11. doi:10.1038/nature02055. PMID14574404.
Yoshitake H, Takeda Y, Nitto T, et al. (2004). "GPI-80, a beta2 integrin associated glycosylphosphatidylinositol-anchored protein, concentrates on pseudopodia without association with beta2 integrin during neutrophil migration". Immunobiology. 208 (4): 391–9. doi:10.1078/0171-2985-00281. PMID14748512.
