MEDizzy
MEDizzy
USMLE
metabolism - Set 26
If enzyme code EC 2.6.1.1 belongs to aspartate amino transferase, then the code EC 4.3.1.3 belongs to which enzyme?
Explanation
ExplanationEnzyme commission by International Union of Biochemistry assigned each enzyme a recommended name and a 4 digit code. Code 4.3.1.3 belongs to histidase which is an example for lyase class of enzymes. The first digit codes for the main class of enzymes. The second digit codes for the type of enzyme catalyzed reaction whereas the third digit describes the enzyme catalyzed reaction. The fourth digit gives a number which keeps on changing as new enzymes are discovered.
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