Abstract
The 22-kDa potato proteinase inhibitors (22-kDa PPI) are synthesized as a preprotein with a hydrophobic signal sequence of 40-residue amino acids. The amino-terminal amino acid sequence (10-mer amino acids: 18-Ala-Phe-Ala-Arg-Ser-Phe-Thr-Ser-Glu-Asn-27) of signal peptide of 22-kDa PPI was synthesized. The 22-kDa PPI signal peptide specific anti-peptide antibodies were raised in New Zealand white rabbits against the 22-kDa PPI synthetic signal peptide. Immunoblot and Northern blot analysis were performed by using 22-kDa PPI anti-peptide antibody and cDNA probe, p34021, which codes for the 22-kDa PPI, respectively. In this paper, we determined the process of the 22-kDa potato proteinase inhibitor in tuber and wounded leaves.
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