Environmental reprogramming of the expression of protein kinase CK2β subunit in fish

Marco Alvarez, Gudrun Kausel, Jaime Figueroa, María Inés Vera

Resultado de la investigación: Article

6 Citas (Scopus)

Resumen

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 CK2β expression decreases in winter when compared to that attained in summer. Similarly, in winter, liver and kidney cells contain lower levels of CK2β 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.

Idioma originalEnglish
Páginas (desde-hasta)107-112
Número de páginas6
PublicaciónMolecular and Cellular Biochemistry
Volumen227
N.º1-2
DOI
EstadoPublished - 1 ene 2001

Huella dactilar

Casein Kinase II
Carps
Fish
Ecosystem
Fishes
Acclimatization
RNA Precursors
Protein Subunits
Photoperiod
Transcription
Processing
Liver
Genes
Kidney
Temperature
Enzymes
U3 small nucleolar RNA

ASJC Scopus subject areas

  • Molecular Biology
  • Clinical Biochemistry
  • Cell Biology

Citar esto

Alvarez, Marco ; Kausel, Gudrun ; Figueroa, Jaime ; Vera, María Inés. / Environmental reprogramming of the expression of protein kinase CK2β subunit in fish. En: Molecular and Cellular Biochemistry. 2001 ; Vol. 227, N.º 1-2. pp. 107-112.
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Environmental reprogramming of the expression of protein kinase CK2β subunit in fish. / Alvarez, Marco; Kausel, Gudrun; Figueroa, Jaime; Vera, María Inés.

En: Molecular and Cellular Biochemistry, Vol. 227, N.º 1-2, 01.01.2001, p. 107-112.

Resultado de la investigación: Article

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