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Protein kinase

protein kinase

(Science: enzyme) enzyme catalysing transfer of phosphate from aTP to hydroxyl side chains on proteins, causing changes in function. most phosphate on proteins of animal cells is on serine residues, less on threonine, with a very small amount on tyrosine residues. Tyrosine kinases phosphorylate proteins on tyrosine, serine / threonine kinases on serine or threonine.


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Questions on the Sodium Potassium Pump and Enzymes

... cycle there is a phosphate group being added and taken away from the protein so surely kinase and phosphotase are involved because an ATPase only hydrolyses ATP? Also, we are just ...

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by JoWillyTso
Mon Nov 05, 2012 5:50 pm
 
Forum: Cell Biology
Topic: Questions on the Sodium Potassium Pump and Enzymes
Replies: 3
Views: 926

Beet Root Pigment

... response in adipose tissue as shown by attenuated glucose-regulated protein 78/C/EBP homologous protein (CHOP) protein abundance and c-Jun NH2-terminal kinase activation. Our findings suggest that betaine might serve as a safe and efficacious ...

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by jinx25
Mon Oct 08, 2012 2:54 am
 
Forum: General Discussion
Topic: Beet Root Pigment
Replies: 7
Views: 770

Re: Kinases

... in the molecule. If the terminal phosphate of ATP is transferred to a protein (releasing free ADP) then the system is in a lower-energy state that ... drive the reaction to the ADP & phosphoprotein side. Not every kinase will use ATP as a substrate. Other high-energy phosphates are available ...

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by jonmoulton
Mon Sep 24, 2012 3:13 pm
 
Forum: Cell Biology
Topic: Kinases
Replies: 2
Views: 701

organs shape

... called compartments. Specific reduction of dAkt" ( Drosophila Akt protein kinase) "function, an essential component of the insulin signaling pathway, in either ...

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by animus
Thu Jun 28, 2012 4:41 pm
 
Forum: Human Biology
Topic: organs shape
Replies: 1
Views: 2143

Molecular gene (genome) concept scientifically untenable

... by changes in gene expression, not in DNA. It's clear nowadays, that protein-coding sequences play only minor role in DNA (BTW there are genes, ... in cancer occurence. And more importantly, we do have gene for glukose kinase, for pyruvate dehydrogenase etc.

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by JackBean
Wed May 02, 2012 6:34 am
 
Forum: Molecular Biology
Topic: Molecular gene (genome) concept scientifically untenable
Replies: 12
Views: 11396
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