Click here to close Hello! We notice that you are using Internet Explorer, which is not supported by Xenbase and may cause the site to display incorrectly. We suggest using a current version of Chrome, FireFox, or Safari.
XB-ART-29020
Nucleic Acids Res 1985 Oct 25;1320:7341-58.
Show Gene links Show Anatomy links

Individual Xenopus histone genes are replication-independent in oocytes and replication-dependent in Xenopus or mouse somatic cells.

Old RW , Sheikh SA , Chambers A , Newton CA , Mohammed A , Aldridge TC .


???displayArticle.abstract???
We have assessed the response of many histone H3 mRNAs and an H1C mRNA in Xenopus tissue culture cells after treatment with the DNA synthesis inhibitor hydroxyurea. The amount of the histone mRNAs falls rapidly in response to the inhibitor. This response is prevented by cycloheximide. Cloned Xenopus histone genes were transfected into mouse cells and a cell line was obtained in which the Xenopus genes were actively expressed giving rise to mRNA with correct 5'-termini. The Xenopus genes were correctly regulated at the level of mRNA amounts in the mouse cell line. Nuclear microinjection experiments with Xenopus oocytes and S1 nuclease analysis of normal ovary RNA showed that the H1C gene, and probably also two H3 genes, which are replication-dependent in somatic cells are expressed in oocytes and are therefore replication-independent in this cell type. The same promoters are used in both replication-dependent and independent expression.

???displayArticle.pubmedLink??? 4059058
???displayArticle.pmcLink??? PMC322048
???displayArticle.link??? Nucleic Acids Res



References [+] :
Alterman, Cell cycle regulation of mouse H3 histone mRNA metabolism. 1984, Pubmed