1.   A related class of drugs, known as matrix metalloproteinase inhibitors, which disable an enzyme that tumors use to invade surrounding tissues, is also advancing.

2.   He knew that patients with homocystinuria had genetic defects that disabled these enzymes.

3.   His work, in which the protein proofreading enzyme was disabled, was an attempt to recreate that earlier, sloppier stage.

4.   Much attention has been focused recently on a group of drugs called matrix metalloproteinase inhibitors, which disable an enzyme that tumors use to invade surrounding tissues.

5.   Sevin can disable an enzyme, cholinesterase, which affects the transmission of nerve impulses.

6.   While antibiotics kill bacteria, Relenza and Tamiflu merely disable the enzyme that enables the influenza A and B viruses to spread to new cells.