Expression of self processing polyproteins in transgenic plants
AssigneeZeneca Limited
InventorsClaire Halpin, Martin Denis Ryan
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AssigneeZeneca Limited
InventorsClaire Halpin, Martin Denis Ryan
Estimating the term…
A 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.
A gene construct for the use in the genetic modification of plants comprising in sequence, a gene promoter active in plant cells, a plurality of coding regions and a 3'-nontranslated region containing a polyadenylation signal, wherein each of the plurality of coding regions is separated by a DNA sequence which encodes an amino acid sequence comprising amino acids 5-17 of SEQ ID NO:1, and said DNA sequence does not encode an amino acid sequence which serves as a substrate for a proteinase.
Dependencies are inferred from the claim text.