ATP's role in the basic functions of the cell make the cell cycle sensitive to changes in the availability of mitochondrial derived ATP.
Now, Rawling, Fitzgerald and Pyle have investigated ATP's role in immune signaling in more detail, and have found that ATP plays two distinct roles.
Prp16 also has an ATP-dependent role in promoting the release of Yju2/Cwc25, and has an ATP-independent role in the first catalytic step in stabilizing the binding of Cwc25 when pre-mRNA carries a mutation at the branchpoint.
In addition to these ATP-dependent functions, several DExD/H-box splicing factors have been shown to have an ATP-independent role in splicing.
An ATP-independent role for Prp16 in the first reaction has recently been demonstrated [ 70].
Purinergic signaling by extracellular ATP plays roles in diverse physiological processes including cell proliferation, development, neurotransmission, and motility.
Similar to our observations, mutations in the conserved residues of the TPR domain of the fly co-chaperone Shutdown compromise only the secondary biogenesis of piRNAs, although a null mutation of shutdown abolishes both primary and secondary piRNA biogenesis (Olivieri et al, 2012), indicating that Shutdown might also have an Hsp90- and ATP-independent role in piRNA biogenesis.
2b, 16, 17 Because of the vital role ATP plays in bacterial metabolism, we determined the level of intracellular ATP, the activity of F-type ATP synthase, and the NAD+/NADH reaction in the inner membrane.
The P2X7 receptor is a calcium permeable cationic channel activated by extracellular ATP, playing a role in chronic pain, osteoporosis and arthritis.
Extracellular ATP plays a role in macrophage apoptosis as a response to pathogen attack.
This setup allowed us to address whether the cohesin loader and ATP play a role in cohesin unloading, as they do during loading.
