How does the cell deal with ever-expression ?

Pascal Hua pjh3142 at rigel.tamu.edu
Mon Nov 22 15:10:44 EST 1993


Hello,

	I have a second question that I wanted to keep separate form the other one
for clarity purpose :-)).
	How do you think a metabolic pathway handles the over-expression of one of
the enzyme along the way to keep the flux through the pathway constant ?
	Many enzymes have been over-expressed.  The purpose might have been just
enzyme purification, or trying to increase the flux through the pathway. 
Quite often, the flux did not increase, and the conclusion was that a step
RbeforeS is the rate limiting step (see other post about that).  But what
happens to the substrate(s)/product(s) of this enzyme that has been
over-expressed ?  Are they any experimental evidences of how it is done
inside the cell ?

Pascal Hua                 pjh3142 at rigel.tamu.edu
Biochemistry & Biophysics
Texas A&M University.


Cross-posted to:
bionet.biology.computational
bionet.cellbiol
bionet.general
bionet.info-theory
bionet.metabolic-reg
bionet.molbio.proteins



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