| Autor: |
Gorgoni, B., Fiorentino, L., Marchioni, M., Carnevali, F. |
| Zdroj: |
Biochemical and Biophysical Research Communications; October 24, 1995, Vol. 215 Issue: 3 p1088-1095, 8p |
| Abstrakt: |
The cDNAs coding for the α and β components of XrpFI, an activator of ribosomal protein genes transcription, were isolated. RNA analysis showed that transcripts of the β genes are present at constant level throughout Xenopus development unlike the β proteins which are undetectable in the early stages of embryogenesis when transcription is silent. On the contrary, a transcripts and proteins were found in all the embryo stages examined. The role of the XrpFI α and β subunits in rp-gene transcription has been studied by mRNA microinjection into X.laevis oocytes. The presence of the β subunit appears to be critical for the proper rp-gene promoter function.Copyright 1995, 1999 Academic Press, Inc. |
| Databáze: |
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