A broadly used gene expression regulatory mechanism inactivates targets by CED-3-caspase-mediated proteolysis and works in parallel to miRNAs for diverse non-apoptotic developmental functions.
Parallel measurements of pH gradient and membrane potential at the single vesicle level have revealed that the synaptic vesicle acidification is initiated by removal of its clathrin coat, which blocks vesicular ATPase activity.
A Na,K-ATPase beta subunit can suppress basal cell carcinogenesis either via its osmoregulatory function to avoid hypotonic stress, or by promoting epithelial polarity and adhesiveness of basal keratinocytes from the overlying outer layer.
The oncogenic RasV12 keeps cells mutant for the tumor suppressor scribble in an undead-like condition, which is required for an amplification loop that promotes tumorigenesis.
Structural and biochemical studies indicate that AAA+ ATPase employ a general mechanism to translocate a variety of substrates, including extended polypeptides, hairpins, crosslinked chains, and chains conjugated to other molecules.
The ATPase Dhh1 controls processing body formation and disassembly in yeast cells, and processing body dynamics can be recapitulated in vitro with recombinant Dhh1, ATP and RNA.