DNA SEQUENCE (VARIANTS, RECOMBINANT DNA, PROTEIN, METHOD OF PROTEIN PREPARING, METHOD OF MICROORGANISM PREPARING, METHOD OF FUNGUS CELL PREPARING, METHOD OF PREPARING LINEAR α-1,4-GLUCANES AND/OR FRUCTOSE AND METHOD OF PREPARING LINEAR α-1,4-GLUCANES AND/OR FRUCTOSE IN VITRO Russian patent published in 2003 - IPC

FIELD: molecular biology, biotechnology, genetic engineering. SUBSTANCE: DNA sequences encoding protein that shows enzymatic activity of amylosucrase and linked with regulatory sequences are introduced into cells of procaryotes or eucaryotes. Then whole plants are regenerated from plant cells where synthesis of linear α-1,4-glucanes occurs more intensively as compared with that in non-transformed plants. Then expressed α-1,4-glucanes and/or fructose are isolated from the host organism. Invention can be used for preparing plants, fungi and microorganisms enriched with linear α-1,4-glucanes. EFFECT: improved method of preparing, valuable biological properties of objects. 17 cl, 2 dwg