Four Rice Seed cDNA Clones Belonging to the α-Amylase/Trypsin Inhibitor Gene Family Encode Potential Rice Allergens

概要

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Four rice seed proteins encoded by cDNAs belonging to the α-amylase/trypsin inhibitor gene family were overexpressed as TrpE-fusion proteins in E. coli. The expressed rice proteins were detected by SDS-PAGE as major proteins in bacterial cell lysates. Western blot analyses showed that all the recombinant proteins were immunologically reactive to rabbit polyclonal antibodies and to a mouse monoclonal antibody (25B9) specific for a previously isolated rice allergen of 16kDa. Some truncated proteins from deletion mutants of the cDNAs retained their reactivity to the specific antibodies. These results suggest that the cDNAs encode potential rice allergens and that some epitopes of the recombinant proteins are still immunoreactive when they are expressed as their fragments.
社団法人日本農芸化学会の論文
1995-07-23