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Titolo:
Environmental reprogramming of the expression of protein kinase CK2 beta subunit in fish
Autore:
Alvarez, M; Kausel, G; Figueroa, J; Vera, MI;
Indirizzi:
Univ Andres Bello, Lab Biol Celular & Mol, Fac Ciencias Salud, Santiago, Chile Univ Andres Bello Santiago Chile l, Fac Ciencias Salud, Santiago, Chile MIFAB, Santiago, Chile MIFAB Santiago ChileMIFAB, Santiago, Chile Univ Austral Chile, Fac Ciencias, Inst Bioquim, Valdivia, Chile Univ Austral Chile Valdivia Chile encias, Inst Bioquim, Valdivia, Chile
Titolo Testata:
MOLECULAR AND CELLULAR BIOCHEMISTRY
fascicolo: 1-2, volume: 227, anno: 2001,
pagine: 107 - 112
SICI:
0300-8177(2001)227:1-2<107:EROTEO>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSCRIPTION FACTOR PIT-1; CARP CYPRINUS-CARPIO; SEASONAL ACCLIMATIZATION; GENE-EXPRESSION; BETA-SUBUNIT; CK2; PHOSPHORYLATION; INSULIN; IDENTIFICATION; TEMPERATURE;
Keywords:
protein kinase CK2 beta subunit; nucleolus; fish acclimatization; carp;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
31
Recensione:
Indirizzi per estratti:
Indirizzo: Vera, MI Univ Andres Bello, Lab Biol Celular & Mol, Fac Ciencias Salud, Republ 217,Santiago, Chile Univ Andres Bello Republ 217 Santiago Chile 217,Santiago, Chile
Citazione:
M. Alvarez et al., "Environmental reprogramming of the expression of protein kinase CK2 beta subunit in fish", MOL C BIOCH, 227(1-2), 2001, pp. 107-112

Abstract

The dramatic segregation of the nucleolar components in winter-acclimatized carp is the most striking cellular-phenotypical feature observed during the seasonal adaptation of this fish toward the circannual changes in its habitat. Our studies also show that the carp habitat temperature and photoperiod winter conditions provoke a remarkable reduction of both rRNA transcription and the processing of their precursors. To gain knowledge on the mechanisms involved in the regulation of nucleolar activity during the seasonal adaptation process, we studied the behavior of some genes, specifically snoRNA U3 and protein kinase CK2. Consistent with the reduction in the synthesis and processing of pre-rRNA observed during the cold season, the level of CK2 beta expression decreasesin winter when compared to that attained in summer. Similarly, in winter, liver and kidney cells contain lower levels of CK2 beta subunit protein compared to summer. CK2 is associated with or modifies different factors and enzymes involved in the nucleolar activity; therefore, its higher or lower content could be part of the molecular mechanisms underlying the nucleolar seasonal changes that occur during the compensatory acclimatization process.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 21:50:24