enzyme cofactor
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enzyme cofactor; uspto.gov;_WJD_2019-0318_V001R01_IR00_
Source (資訊來源):
Info cited on 2019-03-18-WD1 (資訊引用於 中華民國108年3月18日) by 湯偉晉 (WeiJin Tang)
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An enzyme cofactor is a nonprotein substance whose presence is required for an enzyme to exhibit its catalytic activity and which undergoes a chemical change during the catalytic cycle of the enzyme involved. A coenzyme is a type of enzyme cofactor which is chemically modified in the course of the reaction catalyzed by the parent enzyme. Regeneration of the original form of the cofactor requires its participation in a separate reaction that is catalyzed by an enzyme other than the parent enzyme. A prosthetic group is an enzyme cofactor which is chemically modified in the course of the reaction catalyzed by the parent enzyme and is regenerated by a second reaction catalyzed by the parent enzyme. Prosthetic groups are bound to the protein portion of the parent enzyme, such protein portion being known as the apoenzyme and the catalytically active parent enzyme being known as the holoenzyme.
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