Patent ID: 6329574
Filing Date: 2001-12-11
Classification: C07K,C12N,Y02A

Abstract:
A fertile transgenic Zea mays plant comprising isolated DNA comprising a tissue-specific promoter operably linked to a first non-plant DNA sequence encoding a dihydrodipicolinic acid synthase (DHDPS) which DHDPS is substantially resistant to feedback inhibition by endogenously produced free L-lysine and wherein said DNA further comprises a second sequence attached to the 5' terminus of the DHDPS encoding sequence which encodes a plant DHDPS chloroplast transit peptide (CTP) which localizes the DHDPS in the chloroplasts of the cells of said plant, wherein said DNA is expressed so that the transgenic Zea mays plant exhibits an increased level of lysine in its seed over a plant which does not comprise said DNA, and wherein said DNA is heritable.