Gene Regulation

About microscopic forms of life, including Bacteria, Archea, protozoans, algae and fungi. Topics relating to viruses, viroids and prions also belong here.

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elatimer
Garter
Garter
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Joined: Tue Mar 04, 2008 1:18 am

Gene Regulation

Post by elatimer » Tue Mar 04, 2008 1:22 am

Can someone help me and explain repressible systems to me in english??? thanks
-liz

Cat
King Cobra
King Cobra
Posts: 635
Joined: Thu Feb 14, 2008 7:40 pm

Post by Cat » Tue Mar 11, 2008 2:20 am

There are repressible and inducible systems.

In an inducible system, repressor is normally bound to the gene or operon (=> no expression) until effector molecule binds it causing the release from the gene/operon leading to gene activation (=> expression)

In an repressible system, repressor is normally NOT bound to the gene or operon (=>expression) until effector molecule binds it causing to bind gene/operon leading to gene repression (=> no expression)

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