Fig. 1. Qualitative PCR using CpTI and T-nos specific primers. (A) Transgenic construct sequence between CpTI and T-nos was amplified using primer sSCKF1, specific for the
CpTI, and primer sNOSR1, specific for T-nos; the PCR products were separated by agarose gel (2% [w/v]) electrophoresis. The products obtained using DNA template isolated
from non-GM rice (lane 1) and rice powder A (lane 2) are shown next to size markers (lane M). Detection of the endogenous rice gene, SPS, was used as a reference control
(amplicon size of 81 bp). Arrows indicate the amplified products. (B) Sequence of the amplified PCR products. Sequences within arrows are the targeted sequence for the
forward and reverse primers, sSCKF1 and sNOSR1, respectively. Sequences in italics (nucleotides 1–229) code for CpTI, and nucleotides 245–411 are identical to T-nos.
Sequences in bold code for the amino acid sequence KDEL, an endoplasmic reticulum retention signal. Boxed sequences indicate the position of a point mutation from
thymine (at nucleotide position 230) to adenine and a nonsense mutation (at nucleotide position 242–244) inserted after the KDEL-coding sequence.