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Biochim Biophys Acta. 1998 Mar 4;1396(1):32-8.

Poly A-containing histone H4 mRNA variant (H4-v. 1): isolation and sequence determination from bovine adrenal medulla.

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Department of Pharmacology, Faculty of Medicine, University of Ottawa, Ont., Canada.


A histone H4 cDNA variant (H4-v.1) was cloned from a bovine adrenal medullary phage library using PCR as a method of detection. The isolated clones contained a short 5' untranslated region (UTR) followed by the histone H4 coding region and a long atypical 3'UTR. The 3'UTR comprised the palindromic and purine-rich sequences typical of cell-cycle dependent histone mRNAs, and a 1.1 kb extension downstream of the palindromic sequence ending with a poly(A) track typical of cell-cycle independent histone mRNAs. Northern blot and RT-PCR analyses indicate that the transcript is fully expressed in bovine adrenal medulla. Thus, bovine histone H4-v.1 mRNA represents the first example of a histone H4 transcript that contains both 3'UTR characteristics of cell-cycle dependent and cell-cycle independent histone mRNAs.

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