PMID- 8264599 OWN - NLM STAT- MEDLINE DCOM- 19940121 LR - 20210526 IS - 0270-7306 (Print) IS - 1098-5549 (Electronic) IS - 0270-7306 (Linking) VI - 14 IP - 1 DP - 1994 Jan TI - Nucleosome-mediated disruption of transcription factor-chromatin initiation complexes at the mouse mammary tumor virus long terminal repeat in vivo. PG - 32-41 AB - Glucocorticoid induction of mouse mammary tumor virus (MMTV) is short lived, returning to base levels within 24 h despite the continued presence of hormone. MMTV DNA sequences assembled as chromatin require hormone for binding by nuclear factor 1 (NF1) and octamer proteins (OCT). However, in the same cells, NF1 and OCT factors are bound to transiently introduced DNA in the absence of hormone. In contrast, recruitment of the TATA-binding protein and a novel DNA-binding protein, which we have designated FDT, for factor downstream of the TATA-binding protein, is hormone dependent for both stable and transient templates. Furthermore, transient DNA templates, but not nucleosomal templates, retain these transcription factors over the course of 24 h. This finding suggests that MMTV chromatin structure contributes to activation and cessation of transcription in vivo. FAU - Lee, H L AU - Lee HL AD - Department of Obstetrics & Gynecology, University of Western Ontario, London, Canada. FAU - Archer, T K AU - Archer TK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Mol Cell Biol JT - Molecular and cellular biology JID - 8109087 RN - 0 (CCAAT-Enhancer-Binding Proteins) RN - 0 (Chromatin) RN - 0 (DNA Primers) RN - 0 (DNA, Viral) RN - 0 (DNA-Binding Proteins) RN - 0 (NFI Transcription Factors) RN - 0 (Nuclear Proteins) RN - 0 (Nucleosomes) RN - 0 (RNA, Messenger) RN - 0 (TATA-Box Binding Protein) RN - 0 (Transcription Factors) RN - 0 (Y-Box-Binding Protein 1) RN - 0 (YBX1 protein, human) RN - 7S5I7G3JQL (Dexamethasone) SB - IM MH - Animals MH - Base Sequence MH - *CCAAT-Enhancer-Binding Proteins MH - Cell Line, Transformed MH - Chromatin/*metabolism MH - DNA Primers/genetics MH - DNA, Viral/genetics/metabolism MH - DNA-Binding Proteins/metabolism MH - Dexamethasone/pharmacology MH - Kinetics MH - Mammary Tumor Virus, Mouse/genetics/*metabolism MH - Mice MH - Molecular Sequence Data MH - NFI Transcription Factors MH - Nuclear Proteins MH - Nucleosomes/*metabolism MH - Promoter Regions, Genetic/drug effects MH - RNA, Messenger/biosynthesis/genetics MH - Repetitive Sequences, Nucleic Acid MH - TATA-Box Binding Protein MH - Transcription Factors/*metabolism MH - Transcription, Genetic MH - Y-Box-Binding Protein 1 PMC - PMC358353 EDAT- 1994/01/01 00:00 MHDA- 1994/01/01 00:01 PMCR- 1994/01/01 CRDT- 1994/01/01 00:00 PHST- 1994/01/01 00:00 [pubmed] PHST- 1994/01/01 00:01 [medline] PHST- 1994/01/01 00:00 [entrez] PHST- 1994/01/01 00:00 [pmc-release] AID - 10.1128/mcb.14.1.32-41.1994 [doi] PST - ppublish SO - Mol Cell Biol. 1994 Jan;14(1):32-41. doi: 10.1128/mcb.14.1.32-41.1994.