Ja. Kennell et al., cDNA cloning, chromosomal localization and evolutionary analysis of mouse vacuolar ATPase subunit D, Atp6m, CYTOG C GEN, 92(3-4), 2001, pp. 337-341
The multi-subunit vacuolar ATPase pump uses ATP hydrolysis to move protons
into membrane bound compartments. The pump is involved in a variety of cell
ular functions, including regulation of cytosolic pH, vesicular transport,
endocytosis, secretion, and apoptosis. Here, we describe the cDNA cloning a
nd chromosomal mapping of subunit D of murine V-ATPase. The mouse gene, des
ignated Atp6m, maps to Chromosome 12, in a region of high homology with hum
an chromosome 14q24. Evolutionary analysis of subunit D orthologs in a vari
ety of other species reveals that this is a highly conserved protein that h
as been under remarkably strong negative selection during evolution, most l
ikely reflecting its critical role in multiple cellular processes. Copyrigh
t(C) 2001 S. Karger AG, Basel.