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Reliable, easy-to-read patient information on common medical conditions โ written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
VNN1
Introduction
Pantetheinase is an enzyme that in humans is encoded by the VNN1 gene.[1][2]
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. This protein, like its mouse homolog, is likely a GPI-anchored cell surface molecule. The mouse protein is expressed by the perivascular thymic stromal cells and regulates migration of T-cell progenitors to the thymus. This gene lies in close proximity to, and in same transcriptional orientation as two other vanin genes on chromosome 6q23-q24.[2]
References
References
- โ 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): 203โ13. doi:10.1006/geno.1998.5481. PMIDย 9790769.
- โ 2.0 2.1 “Entrez Gene: VNN1 vanin 1”.
Further reading
Further reading
- Aurrand-Lions M, Galland F, Bazin H, et al. (1997). “Vanin-1, a novel GPI-linked perivascular molecule involved in thymus homing”. Immunity. 5 (5): 391โ405. doi:10.1016/S1074-7613(00)80496-3. PMIDย 8934567.
- Maras B, Barra D, Duprรจ S, Pitari G (1999). “Is pantetheinase the actual identity of mouse and human vanin-1 proteins?”. FEBS Lett. 461 (3): 149โ52. doi:10.1016/S0014-5793(99)01439-8. PMIDย 10567687.
- Martin F, Malergue F, Pitari G, et al. (2001). “Vanin genes are clustered (human 6q22-24 and mouse 10A2B1) and encode isoforms of pantetheinase ectoenzymes”. Immunogenetics. 53 (4): 296โ306. doi:10.1007/s002510100327. PMIDย 11491533.
- Strausberg RL, Feingold EA, Grouse LH, et al. (2003). “Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences”. Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899โ903. doi:10.1073/pnas.242603899. PMCย 139241. PMIDย 12477932.
- Mungall AJ, Palmer SA, Sims SK, et al. (2003). “The DNA sequence and analysis of human chromosome 6”. Nature. 425 (6960): 805โ11. doi:10.1038/nature02055. PMIDย 14574404.
- Ota T, Suzuki Y, Nishikawa T, et al. (2004). “Complete sequencing and characterization of 21,243 full-length human cDNAs”. Nat. Genet. 36 (1): 40โ5. doi:10.1038/ng1285. PMIDย 14702039.
- Kristiansen TZ, Bunkenborg J, Gronborg M, et al. (2005). “A proteomic analysis of human bile”. Mol. Cell. Proteomics. 3 (7): 715โ28. doi:10.1074/mcp.M400015-MCP200. PMIDย 15084671.
- Gerhard DS, Wagner L, Feingold EA, et al. (2004). “The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)”. Genome Res. 14 (10B): 2121โ7. doi:10.1101/gr.2596504. PMCย 528928. PMIDย 15489334.
- Liu T, Qian WJ, Gritsenko MA, et al. (2006). “Human plasma N-glycoproteome analysis by immunoaffinity subtraction, hydrazide chemistry, and mass spectrometry”. J. Proteome Res. 4 (6): 2070โ80. doi:10.1021/pr0502065. PMCย 1850943. PMIDย 16335952.
- Min-Oo G, Fortin A, Pitari G, et al. (2007). “Complex genetic control of susceptibility to malaria: positional cloning of the Char9 locus”. J. Exp. Med. 204 (3): 511โ24. doi:10.1084/jem.20061252. PMCย 2137903. PMIDย 17312006.
