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    • 8. 发明专利
    • HUMAN BLOOD PROTEINS EXPRESSED IN ORYZA SEEDS
    • CA2525493C
    • 2018-10-30
    • CA2525493
    • 2003-04-11
    • VENTRIA BIOSCIENCE
    • HUANG NINGRODRIQUEZ RAYMOND LHAGIE FRANK ESTALKER DAVID M
    • C12N15/00C07K14/75C07K14/81C12N15/63C12N15/82C12P21/00
    • The present disclosure relates to a method of producing a recombinant human blood protein in Oryza plant seeds, comprising the steps of transforming an Oryza plant cell with a chimeric gene, growing an Oryza plant from the transformed Oryza plant cell for a time sufficient to produce seeds containing the human blood protein; and harvesting the seeds from the Oryza plant, wherein the human blood protein constitutes at least 3.0% of the total soluble protein in the harvested seeds. In the present disclosure, the chimeric gene comprises (i) a promoter from the gene of a maturation-specific monocot plant storage protein, wherein the promoter is operably linked to a first DNA molecule encoding a monocot plant seed-specific signal sequence capable of targeting a polypeptide linked thereto to a monocot plant seed endosperm cell, wherein the promoter operably linked to the first DNA molecule encoding the signal sequence has at least 95% sequence identity over the entire length of a sequence selected from the group consisting of SEQ ID NOs:6-21; and (ii) a second DNA molecule, linked in translation frame with the first DNA molecule, encoding the human blood protein and wherein the first DNA molecule and the second DNA molecule together encode a fusion protein comprising the monocot plant seed-specific signal sequence and the human blood protein.