| 摘要 |
PCT No. PCT/GB94/02765 Sec. 371 Date May 10, 1996 Sec. 102(e) Date May 10, 1996 PCT Filed Dec. 19, 1994 PCT Pub. No. WO95/17514 PCT Pub. Date Jun. 29, 1995A method for the expression of multiple proteins in a transgenic plant comprising inserting into the genome of the plant a gene construct comprising a 5'-region which includes a promoter which is capable of initiating transcription of a structural gene under the control thereof, a protein encoding sequence coding for more than one protein and a 3'-terminator region which includes a polyadenylation signal, each of the protein encoding sequences being separated from an adjacent protein encoding sequence by a DNA sequence which on translation provides a cleavage site whereby the expressed polyprotein is post-translationally processed into the component protein molecules. The DNA sequence which encodes the post-translation cleavage site may be derived from a virus, particularly a picornavirus. In a preferred embodiment the DNA sequence providing the cleavage site encodes the amino acid sequence NFDLLKLAGDVESNPGPFF.
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