we propose that pyrrolid-2-one-5-carboxyl-trna is not involved in the initiation of protein synthesis in eukaryotic cells and that the n-terminal pyrrolid-2-one-5-carboxylic acid group of an igg ( immunoglobulin g ) ( that secreted by the mouse plasmacytoma adj pc5 ) is formed by the enzymic cyclization of the n-terminal glutamine of the heavy chain of the completed igg molecule and that the cyclization takes place inside the cell .
C1327616
secreted
C0007634
cell