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Allosteric Protein

A protein that has underwent a fundamental structural change after reacting in the presence of another molecule. This will alter its ability to react with that particular type of molecule in the future.

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Re: Enzymes

... "faster" enzymes?" Oh my goodness yes yes yes. Different protein structures have different rates of catalysis - a single amino acid ... affect rate. Many enzymes are controllable by other enzymes -- look at allosteric regulation: http://en.wikipedia.org/wiki/Allosteric

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by jonmoulton
Mon Aug 20, 2012 10:37 pm
Forum: Molecular Biology
Topic: Enzymes
Replies: 23
Views: 19081

Biochemistry/ Proteins & Amino Acids

... with 4 H-bonds 3. Some organisms do not use BPG as the central allosteric effector that binds between the two Beta-subunits of Hb. Instead ... elution profiles for the first three cycles of Edman chemistry in the protein sequenator for the peptide A-D-K-F-K would be: a) bis-PTH-K in cycle ...

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by SimplyMe
Tue Feb 23, 2010 8:32 am
Forum: General Discussion
Topic: Biochemistry/ Proteins & Amino Acids
Replies: 4
Views: 6536

Noncompetitive inhibition and allosteric inhibition

... non-competitive, mixed-competitive are all kinetic behaviors. An allosteric site is a binding site distinct from the substrate binding or ... as inhibit. Usually, there is some kind of conformational change of the protein involved. It need not alter just the conformation of the active site, ...

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by blcr11
Thu Dec 25, 2008 12:17 pm
Forum: Molecular Biology
Topic: Noncompetitive inhibition and allosteric inhibition
Replies: 2
Views: 33904


... on enzymes. There are carbohydrase enzymes, lipidase enzymes, and protein digesting enzymes which break down the food molecules. Without them, ... of the food. "Pepsin" I believe the enzyme is called. It's an allosteric enzyme.

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by Oscerot
Mon Dec 18, 2006 12:06 am
Forum: Cell Biology
Topic: Enzymes
Replies: 21
Views: 5971

What does allosteric mean?

Allosteric means that when a lignad binds to a site for example in a protein that have four subunits as emoglobine, it makes easier the binding of others ligands to the others sites ...

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by Morris
Fri Oct 28, 2005 6:01 pm
Forum: Cell Biology
Topic: What does allosteric mean?
Replies: 2
Views: 5223
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