 PKs, differences between PKs and ATPases |
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| m4x1m1n1o |
  Feb 08, 2007, 03:26 AM
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#1
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 Newbie  Group: Basic Member Posts: 12 Joined: Feb 08, 2007 From: Milano, Italy Member No.: 7620  |
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 |
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| Casey |
Feb 08, 2007, 07:18 AM
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#2
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 Awakening Group: Basic Member Posts: 135 Joined: Dec 29, 2006 From: U.S. Member No.: 6699 |
QUOTE(m4x1m1n1o @ Feb 08, 2007, 05:26 AM)  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. |
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| m4x1m1n1o |
Feb 08, 2007, 07:56 AM
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#3
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Newbie Group: Basic Member Posts: 12 Joined: Feb 08, 2007 From: Milano, Italy Member No.: 7620 |
QUOTE(Casey @ Feb 08, 2007, 04:18 PM) 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?  |
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| Casey |
Feb 12, 2007, 10:18 AM
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#4
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Awakening Group: Basic Member Posts: 135 Joined: Dec 29, 2006 From: U.S. Member No.: 6699 |
QUOTE(m4x1m1n1o @ Feb 08, 2007, 09:56 AM) 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. |
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| m4x1m1n1o |
Feb 14, 2007, 12:42 PM
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#5
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Newbie Group: Basic Member Posts: 12 Joined: Feb 08, 2007 From: Milano, Italy Member No.: 7620 |
QUOTE(Casey @ Feb 12, 2007, 07:18 PM) 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! |
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| Casey |
Feb 14, 2007, 07:49 PM
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#6
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Awakening Group: Basic Member Posts: 135 Joined: Dec 29, 2006 From: U.S. Member No.: 6699 |
QUOTE(m4x1m1n1o @ Feb 14, 2007, 02:42 PM) TY again n nice to meet ya! Nice to meet ya too bro. Hope you stick around and chime in every now and then  |
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