You will need a ride home after the procedure because of the medicines or anesthesia you received. Coronary angiography is a common procedure that rarely causes serious problems. Possible complications may include bleeding, allergic reactions to the contrast dye, infection, blood vessel damage, arrhythmias, blood clots that can trigger a heart attack or stroke, kidney damage, and fluid buildup around the heart.
(Redirected from Corepressor (genetics)) In the field of molecular biology, a corepressor is a substance that inhibits the expression of genes. In prokaryotes, corepressors are small molecules whereas in eukaryotes, corepressors are proteins. A corepressor does not directly bind to DNA, but instead indirectly regulates gene expression by binding to repressors.
In the DNA of E. coli, there is a fourth gene, the regulator gene, lacI. The regulator gene is under separate transcriptional control from the other three genes. lacI codes for a protein called a repressor.The repressor binds to a region just before the lacZ gene. mutant regulator gene (lacI -) produces a defective repressor that cannot bind to the operator. A mutant operator region (lacO c) is defective in that the repressor cannot bind and thus transcription cannot be shut off. Both types of mutants have the same constitutive phenotype.