CELE_R10E11.8, R10E11.8

vha-1 encodes an ortholog of subunit c of the membrane-bound (V0) domain of vacuolar proton-translocating ATPase (V-ATPase); VHA-1 is a predicted V-ATPase transmembrane rotor component; VHA-1 and VHA-2/3 comprise a closely related family of subunit c co-orthologs, predicted to carry protons from the cytosol to a-subunits (VHA-5, VHA-6, VHA-7, or UNC-32) for transmembrane export; VHA-1, like VHA-12 and VHA-17, antagonizes EFF-1-mediated cell fusion in hypodermal cells; VHA-1 is required for ovulation and embryogenesis, since vha-1(RNAi) animals are sterile with polyploid, unmatured oocytes and dead progeny; VHA-1 is required for alae formation, like the V0 subunits VHA-4 and VHA-5, but not like the V1 subunits VHA-8 or VHA-13; vha-1 shares an operon with vha-2 and R10E11.6; both vha-1 and vha-2 are expressed in the excretory cell, the rectum, and a pair of cells near the anus.

41578

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