Many times (at least several times a week) I would feel a lot of air in my stomach - mostly after eating or drinking soda or whatever. It was okay for a while, but I didn't think it was normal for me to produce that much gas in my stomach and for me to be unable to burp.
In molecular genetics, a repressor is a DNA-or RNA-binding protein that inhibits the expression of one or more genes by binding to the operator or associated silencers.
The binding of repressors to operators is reversible (an operator vacillates between two states-one with out the repressor bound and one with the repressor bound; the relative duration of each state depends on the active number of repressors) and trp the repressor is an allosteric protein with two altnernative shapes (active and inactive); the trp repressor is synthesized in an inactive form with little affinity for the trp operator