<p style="text-align: justify;">CV127 soybean has been genetically modified to express an altered AtAHASL protein which is encoded by the <i>csr1-2</i> gene from <i>Arabidopsis thaliana</i> and confers tolerance to imidazolinone herbicides. The AtAHASL protein encoded by <i>csr1-2</i> is structurally and functionally identical to the native AtAHASL, except for substitution of a serine with an asparagine at residue 653 (S653N) which results in tolerance to imidazolinone herbicides. In addition, the <i>csr1-2</i> gene in CV127 contains a second mutation, in which arginine at position 272 is replaced by lysine (R272K).</p>
