Dictionary » P » Protein kinase

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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Ras Pathway

... is temporarily halted during mating. Be sure to specify the role of MAP kinase pathway(s) in this process. The following questions focus on experimental ... growth factor (EGF) is added to epithelial cells, the Ras and Raf proteins are both activated. From this observation by itself, what conclusion ...

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by biologybuzz
Mon Apr 27, 2009 10:36 pm
 
Forum: Cell Biology
Topic: Ras Pathway
Replies: 0
Views: 390

Single PCR tube DNA Extraction Method

... PCR Tube- Mixed inside PCR tube 10ul of 1% SDS solution 10ul of Protein K Kinase 15ul of Nucleas free water. 15 Beads from a Zippy Fecal Extraction kit, Then Vortexted ...

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by Swordy
Mon Apr 27, 2009 5:53 pm
 
Forum: Molecular Biology
Topic: Single PCR tube DNA Extraction Method
Replies: 0
Views: 231

Re: Frog Egg Physilogy

... homegrown methods involveing in different combinations Bead Bashing, Protein Kinase, SDS, HCl, NaOH, Tris, Freezing, and Boiling. None of these have worked in the slightest ...

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by Swordy
Thu Apr 23, 2009 5:51 pm
 
Forum: Zoology Discussion
Topic: Frog Egg Physilogy
Replies: 2
Views: 468

T cell differentiation

... can be distinguished from normal naive CD4+ cells primarily by their protein tyrosine kinase 7 expression, and they are less responsive and have poor effector function. So, does ...

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by biohazard
Thu Apr 16, 2009 6:53 pm
 
Forum: Human Biology
Topic: T cell differentiation
Replies: 12
Views: 2251

cAMP as second messenger in GPCR signal transduction

Hello. I'm currently reading about the signal transduction from G protein-coupled receptors in relation to the cAMP second messenger. But after ... the book uses cAMP as a second messenger and activator of protein kinase A. They do this for the rest of the book. Not only in the chapter I'm ...

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by hplc
Sun Feb 15, 2009 12:31 pm
 
Forum: Cell Biology
Topic: cAMP as second messenger in GPCR signal transduction
Replies: 2
Views: 714
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