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Titolo:
H-2-UPTAKE ACTIVITY, SPECTRA, REDUCTION POTENTIALS, AND KINETICS OF IRON RELEASE ON THE SURFACE OF IRON CORE FROM AZOTOBACTER-VINELANDII BACTERIAL FERRITIN
Autore:
HUANG HQ; XU LS; ZHANG FZ; QIU XH; LIN QM; HUANG JW; ZAO H; HUANG NC; ZENG RY; ZENG D;
Indirizzi:
XIAMEN UNIV,DEPT BIOL XIAMEN 361005 PEOPLES R CHINA XIAMEN UNIV,RES CTR ENVIRONM SCI XIAMEN 361005 PEOPLES R CHINA XIAMEN UNIV,DEPT CHEM XIAMEN 361005 PEOPLES R CHINA
Titolo Testata:
Journal of protein chemistry
fascicolo: 1, volume: 17, anno: 1998,
pagine: 45 - 52
SICI:
0277-8033(1998)17:1<45:HASRPA>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
HORSE SPLEEN FERRITIN; BACTERIOFERRITIN; REDOX; PHOSPHATE; APOFERRITIN; PROTEIN; CELLS; EXAFS; FE2+;
Keywords:
AZOTOBACTER VINELANDII; H-2-UPTAKE ACTIVITY; SPECTRA AND KINETICS; SELF-REGULATION OF THE PROTEIN SHELL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
H.Q. Huang et al., "H-2-UPTAKE ACTIVITY, SPECTRA, REDUCTION POTENTIALS, AND KINETICS OF IRON RELEASE ON THE SURFACE OF IRON CORE FROM AZOTOBACTER-VINELANDII BACTERIAL FERRITIN", Journal of protein chemistry, 17(1), 1998, pp. 45-52

Abstract

Bacterial ferritin from Azotobucter vinelandii (AvBF(o)) has a function in H-2 uptake. The Fe3+ reduction on the surface of the iron core from AvBF(o) is accompanied simultaneously by H-2 uptake, with a maximum activity of H-2 uptake of 450H(2)/AvBF(o). A reduction potential of -402 mV for iron reduction on the surface of the core is found. A shift to the red the protein absorbance peaks ranging from 280 to 290 nm is observed between pH 5 and 9 under 100% H-2 reduction. The reduction potential for iron release becomes negative at a rate of 0.025 mV/Fe2released. The kinetics of iron release on the surface of the core is a first-order reaction.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/09/20 alle ore 04:48:36