The composition and distribution of seed storage proteins are important factors for eating quality such as grain flavor and quality in rice (OryzasativaL.) Rice protein disulfide isomerase (OsPDI) and binding protein (OsBIP) regulate synthesis, stability and sorting of storage proteins. We thus have tried to develop a marker protein for selection of rice cultivars which have different eating quality. Immunoblot analysis revealed that protein levels of OsPDI and OsBIP have no direct correlation with eating quality, suggesting that they may indirectly participate in control of eating quality through their-interacting partners or other regulatory mechanism.

• Yeon Jeong Kim(Department of Plant Science, Research Institute for Agriculture and Life Sciences, and Plant Genomics and Breeding Institute, Seoul National University)
• SoonHoChoi(Department of Plant Science, Research Institute for Agriculture and Life Sciences, and Plant Genomics and Breeding Institute, Seoul National University)
• Yun Jung Han(Department of Plant Science, Research Institute for Agriculture and Life Sciences, and Plant Genomics and Breeding Institute, Seoul National University)
• Yun Jung Han(Department of Plant Science, Research Institute for Agriculture and Life Sciences, and Plant Genomics and Breeding Institute, Seoul National University)
• Jong Tae Song(School of Applied Biosciences, Kyungpook National University)
• Hak Soo Seo(Department of Plant Science, Research Institute for Agriculture and Life Sciences, and Plant Genomics and Breeding Institute, Seoul National University Bio-MAX Institute, Seoul National University) Corresponding author