Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Binding energy and the information content of some elementary biological processes
Autore:
Ricard, A;
Indirizzi:
Univ Paris 06, CNRS, Inst Jacques Monod, F-75251 Paris 05, France Univ Paris 06 Paris France 05 st Jacques Monod, F-75251 Paris 05, France Univ Paris 07, CNRS, Inst Jacques Monod, F-75251 Paris, France Univ Paris 07 Paris France F-75251 Jacques Monod, F-75251 Paris, France
Titolo Testata:
COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE III-SCIENCES DE LA VIE-LIFE SCIENCES
fascicolo: 4, volume: 324, anno: 2001,
pagine: 297 - 304
SICI:
0764-4469(200104)324:4<297:BEATIC>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHLAMYDOMONAS-REINHARDTII CHLOROPLASTS; MULTIENZYME COMPLEXES; MOLECULAR-BIOLOGY; GTP-HYDROLYSIS; ENZYME MEMORY; PHOSPHORIBULOKINASE; DEHYDROGENASE; REVOLUTION; ACTIVATION; MECHANISM;
Keywords:
Shannon entropy; information; genetic information; information transfer between proteins information of enzyme reactions;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Ricard, A Univ Paris 06, CNRS, Inst Jacques Monod, 2,Pl Jussieu,Tour 43, F-75251 Paris 05, France Univ Paris 06 2,Pl Jussieu,Tour 43 Paris France 05s 05, France
Citazione:
A. Ricard, "Binding energy and the information content of some elementary biological processes", CR AC S III, 324(4), 2001, pp. 297-304

Abstract

Protein interactions within a multimolecular complex can result in information and energy transfer between proteins. This can lead in turn to the emergence of novel functions of some proteins of the complex. Various examplesof this situation can be found in the scientific literature. This is probably the case for prion protein, chloroplast phosphoribulokinase bound to glyceraldehyde phosphate dehydrogenase, Ras system, and pancreatic lipase bound to biomembranes, to cite but a few. Any enzyme reaction, or enzyme reaction network, carries Shannon entropy and information. On contrary to genomeentropy, the entropy of enzyme reactions and metabolic sequences is sensitive to 'external' signals, such as substrate, effector and proton concentrations. Complex structural organization of the cell is associated with a higher entropy content, and one can calculate the gain of entropy and information due to integration and complexity. One may conclude from this brief analysis that the informational content oi a living cell is much larger than that of its genome. (C) 2001 Academie des sciences/Editions scientifiques etmedicales Elsevier SAS.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/05/20 alle ore 02:03:33