Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Control of nitrogen and carbon metabolism in cyanobacteria
Autore:
de Marsac, NT; Lee, HM; Hisbergues, M; Castets, AM; Bedu, S;
Indirizzi:
Inst Pasteur, Dept Biochim & Genet Mol, Unite Physiol Microbienne, CNRS,URA 2172, F-75724 Paris, France Inst Pasteur Paris France F-75724 , CNRS,URA 2172, F-75724 Paris, France CNRS, Chim Bacterienne Lab, F-13402 Marseille 20, France CNRS Marseille France 20 m Bacterienne Lab, F-13402 Marseille 20, France
Titolo Testata:
JOURNAL OF APPLIED PHYCOLOGY
fascicolo: 4, volume: 13, anno: 2001,
pagine: 287 - 292
SICI:
0921-8971(200108)13:4<287:CONACM>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
SP STRAIN PCC-7942; PHOSPHOPROTEIN P-II; GLNB GENE-PRODUCT; INORGANIC CARBON; GLUTAMINE-SYNTHETASE; PROTEIN; PHOSPHORYLATION; SYSTEM; SIGNAL; PCC-6803;
Keywords:
Synechococcus; Synechocystis; signal transducer P-II; transcriptional effector NtcA; phosphorylation/dephosphorylation; redox state;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: de Marsac, NT Inst Pasteur, Dept Biochim & Genet Mol, Unite Physiol Microbienne, CNRS,URA 2172, 28 Rue Docteur Roux, F-75724 Paris, France Inst Pasteur 28 Rue Docteur Roux Paris France F-75724 rance
Citazione:
N.T. de Marsac et al., "Control of nitrogen and carbon metabolism in cyanobacteria", J APPL PHYC, 13(4), 2001, pp. 287-292

Abstract

In the unicellular cyanobacteria that do not fix molecular nitrogen, interactions between N assimilation and C metabolism occur through the signal transducer P-II and the global nitrogen regulator NtcA. Under high CO2 concentration, P-II liganded to ATP and bound to 2-oxoglutarate becomes phosphorylated and negatively controls the high affinity transport for bicarbonate. In contrast, under low CO2, P-II being only liganded to ATP becomes dephosphorylated and negatively controls the nitrate/nitrite active transport system. The redox state of the cells together with NtcA also modulate the phosphorylation state of P-II. Moreover, the regulation of the expression of thegene encoding P-II is at least in part NthA-dependent. This network of transcriptional and post-transcriptional regulations allows cells to rapidly acclimate by adjusting their carbon and nitrogen metabolism in response to changes in environmental conditions.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/12/20 alle ore 11:35:06