Provided is a mutant protein obtained by mutating a specific amino acid residue of HMGR, a rate-limiting enzyme of isoprene monomer biosynthesis in the polyisoprenoid biosynthesis pathway. The present invention relates to a mutant protein, wherein at least one amino acid residue selected from the group consisting of amino acid residues at positions 91, 225, 257, 287, 339, 411, 470, 509 and 574 of the Arabidopsis thaliana 3-hydroxy-3-methylglutaryl CoA reductase shown by SEQ ID NO:1 and amino acid residues at positions corresponding to the foregoing in 3-hydroxy-3-methylglutaryl CoA reductase is deleted or replaced with another amino acid residue.

OSAKA UNIVERSITY

SUMITOMO RUBBER INDUSTRIES, LTD.

Mutein, method for producing said mutein, gene encoding said mutein, recombinant vector and plant bearing said gene, method for controlling amount of mevalonic acid produced and amount of isoprenoid produced, method for controlling 3-hydroxy-3-methylglutaryl-CoA reductase activity

isoprene/uročnjak

Mutein, method for producing said mutein, gene encoding said mutein, recombinant vector and plant bearing said gene, method for controlling amount of mevalonic acid produced and amount of isoprenoid produced, method for controlling 3-hydroxy-3-methylglutaryl-CoA reductase activity

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