Rice seed globulin: a protein similar to wheat seed glutenin.
The globulin of the seed endosperms of rice has an isoelectric point of 6.4 and a M(r) of 26,000. There is one intra-disulphide bond, but no N-linked oligosaccharide chain. The amino acid sequence of the N-terminal and internal regions of the globulin was determined and found to be homologous with that of glutenin, the storage protein in the seed endosperms of wheat. Rice globulin and wheat glutenin were rich in glycine, and glutamic acid or glutamine, and in addition, wheat glutenin cross-reacted with antibody raised against rice globulin. These results suggest that rice seed globulin represents a protein similar to wheat seed glutenin.
Department of Molecular Biology, National Institute of Agrobiological Resources, Ibaraki, Japan.
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Komatsu
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Hirano
D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D005916:Globulins / Q000737:chemistry* / Q000276:immunology; D005983:Glutens / Q000031:analogs & derivatives / Q000737:chemistry / Q000276:immunology; D008969:Molecular Sequence Data; D012275:Oryza / Q000737:chemistry*; D010940:Plant Proteins / Q000737:chemistry*; D017386:Sequence Homology, Amino Acid; D014908:Triticum / Q000737:chemistry
D000596:Amino Acids; D005916:Globulins; D010940:Plant Proteins; D005983:Glutens; C037302:glutenin