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Dictionary » A » Ara operon

Ara operon

Ara operon

(Science: biochemistry molecular biology) Operons involved in arabinose metabolism, especially. The araBAD operon of E. Coli.Two other ara operons are known in E. Coli.


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Two questions about operon (transcription/translation)

Let's deal with a bacteria only. 1. Suppose an operon was transcribed. When it gets translated, does each gene have its own translation intiation site (ribosomal binding site)? Or does it only have one (like it has one promoter). 2. rRNA (5s/16s/30s, ...

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by farful
Mon Jul 27, 2009 5:33 pm
 
Forum: General Discussion
Topic: Two questions about operon (transcription/translation)
Replies: 2
Views: 119

Biological Functions of...

... can also be alosteric regulators (think of fructose 1,6-bisphosphate in glycolysis) and so can disaccharides (think of lactose in the lac operon). Polysaccharides have a structural role in the cell wall of plants (cellulose) and fungi (poly-N-acetylglucosamine), they are important for ...

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by MrMistery
Wed Jul 08, 2009 2:59 am
 
Forum: Cell Biology
Topic: Biological Functions of...
Replies: 3
Views: 235

Re: Really puzzled with gene expresseion!!!!

... your instructor is likely very familiar with, so if you decide to use this example be sure to study it carefully. http://en.wikipedia.org/wiki/Lac_operon Historical notes on the discovery of the lactose-response genes (the lac operon): http://en.wikipedia.org/wiki/Jacques_Monod http://en.wikipedia.org/wiki/Fran%C3%A7ois_Jacob ...

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by jonmoulton
Mon Apr 27, 2009 3:07 pm
 
Forum: Genetics
Topic: Really puzzled with gene expresseion!!!!
Replies: 4
Views: 552

Re: Operon info

... and eukaryotes having different mechanism but as far reported saccharomyces cerevisiae having similarity with plant systen and this Ars operon is reported in saccharomyces cerevisiae also. so there are chances of getting this operon in fern i.e. plant system. so if i want to know the ...

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by ss_kalve
Mon Feb 16, 2009 7:31 am
 
Forum: Molecular Biology
Topic: Operon info
Replies: 4
Views: 410

Re: Operon info

An operon is generally common in prokaryotes (the bacteria) and less common, although existent, in eukaryotes (fern). Since you don't have the sequence, you can't tell for sure. But generally speaking, those are very different ...

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by gforce32
Sun Feb 15, 2009 9:02 pm
 
Forum: Molecular Biology
Topic: Operon info
Replies: 4
Views: 410
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