Vacuolar protein sorting-associated protein 4A is a protein that in humans is encoded by the VPS4Agene.[5][6][7]
Function
The protein encoded by this gene is a member of the AAA protein family (ATPases associated with diverse cellular activities), and is the homolog of the yeast Vps4 protein. In humans, two paralogs of the yeast protein have been identified. They share a high degree of amino acid sequence similarity with each other, and also with yeast Vps4 and mouse proteins. Functional studies indicate that both human paralogs associate with the endosomal compartments, and are involved in intracellular protein trafficking, similar to Vps4 protein in yeast. The gene encoding this paralog has been mapped to chromosome 16; the gene for the other resides on chromosome 18.[7]
^Scheuring S, Röhricht RA, Schöning-Burkhardt B, Beyer A, Müller S, Abts HF, Köhrer K (September 2001). "Mammalian cells express two VPS4 proteins both of which are involved in intracellular protein trafficking". J Mol Biol. 312 (3): 469–80. doi:10.1006/jmbi.2001.4917. PMID11563910.
^Howard TL, Stauffer DR, Degnin CR, Hollenberg SM (July 2001). "CHMP1 functions as a member of a newly defined family of vesicle trafficking proteins". J. Cell Sci. 114 (Pt 13): 2395–404. doi:10.1242/jcs.114.13.2395. PMID11559748.
Further reading
Scheuring S, Bodor O, Röhricht RA, Müller S, Beyer A, Köhrer K (1999). "Cloning, characterisation, and functional expression of the Mus musculus SKD1 gene in yeast demonstrates that the mouse SKD1 and the yeast VPS4 genes are orthologues and involved in intracellular protein trafficking". Gene. 234 (1): 149–59. doi:10.1016/S0378-1119(99)00163-8. PMID10393249.
Howard TL, Stauffer DR, Degnin CR, Hollenberg SM (2002). "CHMP1 functions as a member of a newly defined family of vesicle trafficking proteins". J. Cell Sci. 114 (Pt 13): 2395–404. doi:10.1242/jcs.114.13.2395. PMID11559748.
Beyer A, Scheuring S, Müller S, Mincheva A, Lichter P, Köhrer K (2003). "Comparative sequence and expression analyses of four mammalian VPS4 genes". Gene. 305 (1): 47–59. doi:10.1016/S0378-1119(02)01205-2. PMID12594041.
Chen VY, Posada MM, Blazer LL, Zhao T, Rosania GR (2007). "The role of the VPS4A-exosome pathway in the intrinsic egress route of a DNA-binding anticancer drug". Pharm. Res. 23 (8): 1687–95. doi:10.1007/s11095-006-9043-0. PMID16841193. S2CID2777033.