| 释义 |
Transpeptidation
Transpeptidation the transfer of an amino acid residue or peptide residue from one compound, usually a peptide, to another in living cells. The reaction, which may be catalyzed by such proteolytic enzymes as trypsin and chymotrypsin, proceeds without substantial changes in free energy, and the total number of peptide bonds (—CO—NH—) in the system remains unchanged. Transpeptidation is used by the cell in the biosynthesis of proteins. transpeptidation
trans·pep·ti·da·tion (trans'pep-ti-dā'shŭn), A reaction involving the transfer of one or more amino acids from one peptide chain to another, as by transpeptidase action, or of a peptide chain itself, as in bacterial cell wall synthesis.trans·pep·ti·da·tion (trans-pep'ti-dā'shŭn) A reaction involving the transfer of one or more amino acids from one peptide chain to another, as by transpeptidase action, or of a peptide chain itself, as in bacterial cell wall synthesis. |