单词	transamination
释义	transamination /ˌtransamɪˈneɪʃ(ə)n / /ˌtrɑːns-/ /-nz-/ noun [mass noun] Biochemistry The transfer of an amino group from one molecule to another, especially from an amino acid to a keto acid.Glutamate is also a principal amino donor to other amino acids in subsequent transamination reactions.... The key organic acid, 2-oxoglutarate, is mainly derived from sugar respiration and amino acid transamination reactions. The earliest enzymatic functions are mostly linked to amino acid catabolism: deamination, transamination, and decarboxylation. Derivatives transaminate verb ... Ornithine, in excess of urea cycle needs, is transaminated to form glutamate semialdehyde. In skeletal muscle, pyruvate is transaminated to alanine, thus affording an additional route of nitrogen transport from muscle to liver. It seemed the mitochondrial OAA must be transaminated or decarboxylated in the cytosol via a malate-OAA shuttle in order to maximize malate-dependent respiration.
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