hello ppl,
I know that Protein Kinases do phosphorilate other proteins that get activated by this. but I also know ATPases do this . My question are:
1. There are differences between PKs and ATPases?
2. Are all the PKs also ATPases?
TY
m4x

That's a pretty tough question.
Most protein kinases are ATPases and vice versa.

I'm not sure, but...
I believe most protein kinases would be ATPases, yet ATPases aren't necessarily protein kinases.

As far as I know, all ATPases don't always breakdown ATP specifically to phosphorylate proteins, so you couldn't really consider them protein kinases in general.

firstable TY for answer to me
I studied that ATPases are a class of enzymes that catalyze the decomposition of ATP into ADP+P‚ .
do u know any ATPase that dont do this?

Breaking down ATP is part of the inherent definition of an ATPase. I believe all ATPases breakdown ATP.
But, I don't think that all ATPases breakdown ATP specifically to phosphorylate proteins.

I think there are a few which simply produce a free inorganic phosphate group.

this makes sense! plus there is to say that PKs phosphorylate only serine/thryonine or tyrosine kinds of aminoacids that could be found in the substrate subunit!
TY again n nice to meet ya!

Nice to meet ya too bro. Hope you stick around and chime in every now and then