Motif III Is Necessary for Activity of GA2ox5 and GA2ox6.
(A) Design of constructs encoding the full-length and motif III–truncated GA2ox5 and GA2ox6. Boxes indicate positions of three highly conserved amino acid motifs. The last amino acid residue was shown at the C terminus of deduced polypeptides.
(B) Comparison of morphology among transgenic rice overexpressing full-length and motif III–truncated GA2ox5 and GA2ox6 and vector pCAMBIA1301 only (CK).