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Avian Retroviral Long Terminal Repeats Bind CCAAT/enhancer-binding Protein

Overview
Journal Mol Cell Biol
Specialty Cell Biology
Date 1989 Mar 1
PMID 2725492
Citations 63
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Abstract

DNA-protein interactions involving enhancer and promoter sequences within the U3 regions of several avian retroviral long terminal repeats (LTRs) were studied by DNase I footprinting. The rat CCAAT/enhancer-binding protein, C/EBP, bound to all four viral LTRs examined. The Rous sarcoma virus binding site corresponded closely to the 5' limit of the LTR enhancer; nucleotides -225 to -188 were protected as a pair of adjacent binding domains. The Fujinami sarcoma virus LTR bound C/EBP at a single site at nucleotides -213 to -195. C/EBP also bound to the promoter region of the enhancerless Rous-associated virus-0 LTR at nucleotides -77 to -57. The avian myeloblastosis virus LTR bound C/EBP at three sites: nucleotides -262 to -246, -154 to -134, and -55 to -39. We have previously observed binding of C/EBP to an enhancer in the gag gene of avian retroviruses. A heat-treated nuclear extract from chicken liver bound to all of the same retroviral sequences as did C/EBP. Alignment of the avian retroviral binding sequences with the published binding sites for C/EBP in two CCAAT boxes and in the simian virus 40, polyoma, and murine sarcoma virus enhancers suggested TTGNNGCTAATG as a consensus sequence for binding of C/EBP. When two bases of this consensus sequence were altered by site-specific mutagenesis of the Rous sarcoma virus LTR, binding of the heat-stable chicken protein was eliminated.

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References
1.
SANGER F, Nicklen S, Coulson A . DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977; 74(12):5463-7. PMC: 431765. DOI: 10.1073/pnas.74.12.5463. View

2.
Herr W, Gluzman Y . Duplications of a mutated simian virus 40 enhancer restore its activity. Nature. 1985; 313(6004):711-4. DOI: 10.1038/313711a0. View

3.
Czernilofsky A, DeLorbe W, Swanstrom R, Varmus H, Bishop J, Tischer E . The nucleotide sequence of an untranslated but conserved domain at the 3' end of the avian sarcoma virus genome. Nucleic Acids Res. 1980; 8(13):2967-84. PMC: 324138. DOI: 10.1093/nar/8.13.2967. View

4.
Efstratiadis A, Posakony J, Maniatis T, Lawn R, OConnell C, Spritz R . The structure and evolution of the human beta-globin gene family. Cell. 1980; 21(3):653-68. DOI: 10.1016/0092-8674(80)90429-8. View

5.
Shibuya M, Wang L, Hanafusa H . Molecular cloning of the Fujinami sarcoma virus genome and its comparison with sequences of other related transforming viruses. J Virol. 1982; 42(3):1007-16. PMC: 256934. DOI: 10.1128/JVI.42.3.1007-1016.1982. View