CHANGES IN THE AQUEOUS AMMONIA SOLUBLE PROTEINS OF RAPESEED (BRASSICA NAPUS L.) DURING THE MATURING PERIOD

Abstract

The changes in the amino acid composition of the two aqueous ammonia soluble proteins from rapeseed (Brassica napus L.) have been studied from the time that the seed contains a small amount of protein nitrogen until it is mature. Amino acid analyses and N-terminal amino acid analyses indicated that protein synthesis proceeds from the N-terminus of the protein towards the C-terminus. Although the results of the analyses cannot be interpreted unequivocally, they ruled out the possibility that the storage protein is synthesized by the condensation of similar polypeptide subunits.