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Titolo:
Identification, purification, and molecular cloning of a putative plastidic glucose translocator
Autore:
Weber, A; Servaites, JC; Geiger, DR; Kofler, H; Hille, D; Groner, F; Hebbeker, U; Flugge, UI;
Indirizzi:
Univ Cologne, Lehrstuhl Bot 2, D-50931 Cologne, Germany Univ Cologne Cologne Germany D-50931 uhl Bot 2, D-50931 Cologne, Germany Univ Dayton, Dept Biol, Dayton, OH 45469 USA Univ Dayton Dayton OH USA 45469 v Dayton, Dept Biol, Dayton, OH 45469 USA
Titolo Testata:
PLANT CELL
fascicolo: 5, volume: 12, anno: 2000,
pagine: 787 - 801
SICI:
1040-4651(200005)12:5<787:IPAMCO>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHLOROPLAST ENVELOPE MEMBRANES; TRANSGENIC POTATO PLANTS; ARABIDOPSIS-THALIANA L; PHOSPHATE TRANSLOCATOR; SPINACH-CHLOROPLASTS; NICOTIANA-SYLVESTRIS; STARCHLESS MUTANT; METABOLITE LEVELS; CARBOHYDRATE-METABOLISM; ANTISENSE REPRESSION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
72
Recensione:
Indirizzi per estratti:
Indirizzo: Weber, A Univ Cologne, Lehrstuhl Bot 2, Gyrhofstr 15, D-50931 Cologne, Germany Univ Cologne Gyrhofstr 15 Cologne Germany D-50931 logne, Germany
Citazione:
A. Weber et al., "Identification, purification, and molecular cloning of a putative plastidic glucose translocator", PL CELL, 12(5), 2000, pp. 787-801

Abstract

During photosynthesis, part of the fixed carbon is directed into the synthesis of transitory starch, which serves as an intermediate carbon storage facility in chloroplasts. This transitory starch is mobilized during the night. Increasing evidence indicates that the main route of starch breakdown proceeds by way of hydrolytic enzymes and results in glucose formation. Thispathway requires a glucose translocator to mediate the export of glucose from the chloroplasts. We have reexamined the kinetic properties of the plastidic glucose translocator and, using a differential labeling procedure, have identified the glucose translocator as a component of the inner envelopemembrane. Peptide sequence information derived from this protein was used to isolate cDNA clones encoding a putative plastidic glucose translocator from spinach, potato, tobacco, Arabidopsis, and maize. We also present the molecular characterization of a candidate for a hexose transporter of the plastid envelope membrane. This transporter, initially characterized more than 20 years ago, is closely related to the mammalian glucose transporter GLUT family and differs from all other plant hexose transporters that have been characterized to date.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 15:48:24