Replication and expression of Xenopus laevis globin genes injected into fertilized Xenopus eggs.
AUTOR(ES)
Bendig, M M
RESUMO
Cloned Xenopus adult alpha 1- and beta 1-globin genes were injected into fertilized Xenopus eggs, and the eggs were allowed to develop into swimming tadpoles. The injected DNA replicated during early Xenopus development but did not become methylated de novo. When DNA was modified with Hpa II methylase before injection, methylation was maintained during replication. Although the Xenopus adult globin genes are not normally expressed until metamorphosis, both the unmethylated and in vitro methylated adult alpha- and beta-globin genes were transcribed at low levels, but from the correct promoters, during early development.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=394262Documentos Relacionados
- Differential expression of the Xenopus laevis tadpole and adult beta-globin genes when injected into fertilized Xenopus laevis eggs.
- Fidelity of transcription of Xenopus laevis globin genes injected into Xenopus laevis oocytes and unfertilized eggs.
- Developmental regulation of a gastrula-specific gene injected into fertilized Xenopus eggs.
- High-frequency germ-line transmission of plasmid DNA sequences injected into fertilized zebrafish eggs.
- Persistence, methylation and expression of vitellogenin gene derivatives after injection into fertilized eggs of Xenopus laevis.
