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Activator

Activator

(Science: biochemistry) a DNA-binding transcription metabolite that positively modulates an allosteric Enzyme or regulates one or more genes by increasing the rate of transcription.


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DIFFERENT BETWEEN REPRESSOR AND INDUCER

Activator and repressor bind DNA. Activator = transcription; repressor = no transcription (simplified). Inducer does NOT bind DNA. Inducer binds either activator OR repressor. It makes activator BETTER able to bind DNA = more ...

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by Cat
Fri Oct 19, 2012 12:15 am
 
Forum: Molecular Biology
Topic: DIFFERENT BETWEEN REPRESSOR AND INDUCER
Replies: 1
Views: 2877

DIFFERENT BETWEEN REPRESSOR AND INDUCER

CAN ANY BODY HELP ME TO UNDERSTAND BASIC DIFFERENT BETWEEN REPRESSOR AND INDUCER. AND WHAT IS THE DIFFERENT BETWEEN INDUCER AND ACTIVATOR PROTEIN IN RESPECT TO OPERONS ??

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by Helics
Wed Oct 17, 2012 3:23 pm
 
Forum: Molecular Biology
Topic: DIFFERENT BETWEEN REPRESSOR AND INDUCER
Replies: 1
Views: 2877

Gene enhancers/repressors in Drosophilia stripes

... that I can't seem to answer correctly/articulate in the right way. Gene expresses 2 stripes, 1 in the anterior and 1 in the posterior. The same activator binds to both enhancers and is required for expression in both the ant and post stripe. Activator is present in an ant/post gradient. Describe ...

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by bwooten28
Wed Apr 04, 2012 4:44 am
 
Forum: Molecular Biology
Topic: Gene enhancers/repressors in Drosophilia stripes
Replies: 1
Views: 1122

what is the difference between promoter and enhancer

... increases the speed. That's the place where transcription factors bind (although they should bind in the nearby of promotor as well.) Should the activator be a DNA sequence? I would consider that as a protein with activating function.

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by JackBean
Wed Mar 14, 2012 9:59 am
 
Forum: Molecular Biology
Topic: what is the difference between promoter and enhancer
Replies: 3
Views: 5419

Re: HCG Diet - Excellent Idea Or Not necessarily?

... Those fatty acids will be used in a multitude of ways to construct cell membranes, cell signals, etc. The idea works and HCG does work as an activator of lipolysis in the human body (very well actually). However, this chemical is normally made during pregnancy. It plays with the levels of ...

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by daniel.kurz
Sun Oct 30, 2011 2:52 am
 
Forum: Human Biology
Topic: HCG Diet - Excellent Idea Or Not necessarily?
Replies: 4
Views: 3965
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