constitutive enzyme

The oxygen consumption rate had a strong effect on the production of this constitutive enzyme.

Constitutive enzymes are produced constitutively by the cell under all physiological conditions.

Some properties of this constitutive enzyme are described.

AOX activity is demonstrated in situ as a constitutive enzyme.

Constitutive enzymes are produced in constant amounts without regard to the physiological demand or the concentration of the substrate.

According to our findings, the inducible enzyme may display an activity four to five times higher than that of the constitutive enzyme.

Urease is a constitutive enzyme for both long and short cells, but its activity was tremendously increased when urea was incorporated into the media.

H/BMT is a constitutive enzyme, and its localization in the cytosol is understandable because glucosinolate hydrolysis products are released in this compartment after myrosinase action.

At high Pi concentrations, residual activities of both acid and alkaline phophatases were detected, probably reflecting the activity of constitutive enzymes not involved in P nutrition of the cells.

"If we can inhibit those induced enzymes which cause inflammation, without touching the protective constitutive enzyme, we could get rid of NSAIDs' side effects on the stomach," Sir John said.

An adaptive enzyme or inducible enzyme is an enzyme that is expressed only under conditions in which it is clear of adaptive value, as opposed to a constitutive enzyme which is produced all the time.

An example of inducible enzyme is COX-2 which is synthesized in macrophages to produce Prostaglandin E while the constitutive enzyme COX-1 (another isozyme in COX family) is always produced in variety of organisms in body (like stomach).

Methods that detect and confirm the presence of E. coli in a single step use the enzyme $glucuronidase, a unique constitutive enzyme found in E. coli, Shigella spp., and some Salmonella spp., but rarely present in other coliforms (Manafi et al., 1991).