Pantetheinase is an enzyme that in humans is encoded by the VNN1gene.[5][6]
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.[6]
^"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.
^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.