Patent ID: 7354902

Claim:
A mature lactoferrin obtained by a method of producing lactoferrin comprising: (a) transforming plant cells so as to integrate a recombinant nucleotide sequence within the genome of the plant cells, the plant cells selected from the group consisting of maize, wheat, barley and rice cells, and the recombinant nucleotide sequence comprising: (i) a coding sequence for the mature lactoferrin, (ii) a transcription promoter and terminator which are operably linked to the coding sequence of (i) and are recognized by transcriptional machinery of plant cells, and (iii) a coding sequence for a signal peptide that directs secretion of recombinant peptides from plant cells, (b) expressing lactoferrin in said transformed plant cells, and (c) recovering the lactoferrin expressed in said transformed plant cells, wherein the expressed lactoferrin is mature lactoferrin.