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Turnover number

turnover number

(Science: biochemistry, pharmacology) equivalent to vmax, being the number of substrate molecules converted to product by one molecule of enzyme in unit time, when the substrate is saturating.


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Enzyme Kinetics - Turnover

... make a point that it's a homotetramer and asks for the Kcat/turnover number per active site.

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by TJC12
Sun Feb 26, 2012 12:19 pm
 
Forum: Molecular Biology
Topic: Enzyme Kinetics - Turnover
Replies: 2
Views: 4396

Tissue cells and cancers.

... are to become cancerous. Blood cells and epithelia have a very high turnover rates and subsequently also big number of cancers. Brain or muscle cancers, for example, are rare as these cells hardly divide ...

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by biohazard
Tue Sep 21, 2010 11:29 am
 
Forum: General Discussion
Topic: Tissue cells and cancers.
Replies: 4
Views: 9421

Re: Cytokine - Receptor concepts

... as the receptors are being degraded by proteases during normal protein turnover and finally only one is left. Receptor concentrations can be roughly ... the fate of the cell? What will happen if we assume the case that the number of two different receptors (or concentrations of them) on the cell ...

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by jonmoulton
Wed Jun 02, 2010 5:26 pm
 
Forum: Cell Biology
Topic: Cytokine - Receptor concepts
Replies: 7
Views: 14859

enzymes in cold temperature

... only thing that slows this enzyme down is the rate of diffusion, its turnover number (Kcat) is about 600,000 molecules of product per second. The other perfect enzyme Triose ...

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by canan5000
Thu Dec 06, 2007 5:13 pm
 
Forum: Molecular Biology
Topic: enzymes in cold temperature
Replies: 8
Views: 26659

help!!!!!!!! about enzyme kinetics

The maximal rate, V(max), reveals the turnover number when the enzyme is fully saturated with substrate. It's equal to k(cat)

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by sdekivit
Sat Oct 28, 2006 9:44 am
 
Forum: Molecular Biology
Topic: help!!!!!!!! about enzyme kinetics
Replies: 6
Views: 3685
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