[Properties of endoribonuclease activity of proteasomes from K562 cells. II. Analysis of specific mRNA nucleolysis by proteasomes]. / Kharacteristiki éndoribonukleaznoi aktivnosti proteasom iz kletok linii K562. II. Analiz nukleoliza spetsificheskikh mRNK proteasomami.
Tsitologiia
; 44(4): 357-63, 2002.
Article
en Ru
| MEDLINE
| ID: mdl-12149779
The ability of 26S proteasomes from the human proerythroleukaemic cell line K562 to degrade high-molecular-weight cytoplasmic RNAs, particularly specific messenger RNA, has been detected. The addition of hemin to K562 cells in the culture media leads to redistribution of proteasomes and their migration mainly to the cytoplasm. The human wild type p53 gene mRNA was shown to be specifically nucleolized by proteasomes. These particles displayed endoribonuclease activity towards mRNA for Renilla sp. luciferase. Proteasomes also specifically degraded Alu-containing mRNAs. A supposition is made about the involvement of proteasomes in stability control of specific RNA groups.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Péptido Hidrolasas
/
ARN Mensajero
/
Células K562
/
Complejo de la Endopetidasa Proteasomal
/
Endorribonucleasas
Límite:
Humans
Idioma:
Ru
Revista:
Tsitologiia
Año:
2002
Tipo del documento:
Article
Pais de publicación:
Rusia