IAL   21557
INSTITUTO DE AGROBIOTECNOLOGIA DEL LITORAL
Unidad Ejecutora - UE
artículos
Título:
The Unique Specificity of the Sucrose Synthase from Thermosynechococcus elongatus
Autor/es:
C.M. FIGUEROA; M.D. ASENCIÓN DIEZ; M.L. KUHN; S. MCEWEN; G.L. SALERNO; A.A. IGLESIAS; M.A. BALLICORA
Revista:
FEBS LETTERS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Lugar: Amsterdam; Año: 2013 vol. 567 p. 165 - 169
ISSN:
0014-5793
Resumen:
Sucrose synthase catalyzes the reversible conversion of sucrose and UDP into fructose and UDP-glucose. In filamentous cyanobacteria, the sucrose cleavage direction plays a key physiological function in carbon metabolism, nitrogen fixation, and stress tolerance. In unicellular strains, the function of sucrose synthase has not been elucidated. We report a detailed biochemical characterization of sucrose synthase from Thermosynechococcus elongatus after the gene was artificially synthesized for optimal expression in Escherichia coli. The homogeneous recombinant sucrose synthase was highly specific for ADP as substrate, constituting the first one with this unique characteristic, and strongly suggesting an interaction between sucrose and glycogen metabolism.