单词	proenzyme
释义	proenzyme /prəʊˈɛnzʌɪm / noun Biochemistry A biologically inactive substance which is metabolized into an enzyme.Covalent modification of pre-existing pools of inactive proenzymes produces active enzymes.... These death proteases are part of a proteolytic cascade activating proenzymes into active proteases. Protein digestion begins in the stomach, where a proenzyme called pepsinogen is secreted, autocatalytically converted to Pepsin A, and used for the first step of proteolysis.
随便看	unmeddled-with unmeddlesome unmeddling unmediated unmediatized unmedical unmedicated unmeditated unmeditative unmeek unmeekly unmeekness unmeet unmeetable unmeetly unmeetness unmellow unmellowed unmelodic unmelodious unmelodiously unmelodramatic unmeltable unmelted unmelting

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