DIFFERENT EXPRESSIONS FOR ENZYME-ACTIVITIES IN ORGANS OF RAT - APPLICATION TO ASPARTATE-TRANSAMINASE, GLUTAMATE-DEHYDROGENASE AND AMP-DEAMINASE

  • 1 January 1978
    • journal article
    • research article
    • Vol. 34  (3) , 345-349
Abstract
The widely used activity expressions for enzyme levels in tissues are discussed: microkatals per unit of tissue wt, protein wt and DNA wt. The expression of microkatals present in a definite organ in reference to a standard animal wt, 100 g in the rat, is also used. The different expressions are applied to aspartate transaminase, glutamate dehydrogenase and AMP deaminase activities in liver, hind leg striated muscle and kidneys in rat. Measurements of enzyme activity in tissues should be expressed in more than 1 form, as the information drawn from 1 could differ substantially from that obtained from other, giving artifactual views of the metabolic role played by the enzyme in a given tissue.

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