Nucleic acid fragment, the chimeric gene, host cell, polipeptu00ecdeos, method of amendment of the level of expression of an enzyme biossintu00e9tica,Method of production of a fragment of nucleic acid, and method of assessing the capacity of at least one compound to inhibit the activity of an enzyme biossintu00e9tica

摘要

"Fragment of nucleic acid, chimeric gene, host cell, polipeptu00ecdeos, method of amendment of the level of expression of an enzyme biossintu00e9tica,Method of production of a fragment of nucleic acid, and method for assessing the ability of at least one compound to inhibit the activity of an enzyme biossintu00e9tica ".The present invention relates to a fragment of a nucleic acid encoding an enzyme isolated biossintu00e9tica branched chain amino acid.The present invention also refers to the construction of a chimeric gene that encode, in whole or in part, the enzyme biossintu00e9tica branched chain amino acid.In the guidance of sense favourable or otherwise.In the expression of the chimeric gene results in the production of altered levels of branched chain amino acid biossintu00e9tica enzyme in a transformed host cell.