PMID- 2171522 OWN - NLM STAT- MEDLINE DCOM- 19901121 LR - 20190612 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 172 IP - 1 DP - 1990 Oct 15 TI - The interaction of a c-Jun/Fos related protein factor with the U3 sequences of the mouse mammary tumor virus LTR. PG - 348-56 AB - Using polyacrylamide gel mobility shift assay we have detected a nuclear factor (NF-S) in a mouse mammary tumor cell line (GR) that binds to an upstream sequence domain (-766 to -737) near the 5'-end of the mouse mammary tumor virus (MMTV) long terminal repeat (LTR). Antibodies to the products of the Jun and Fos oncogenes interfered with the binding potential of this factor, indicating that the factor shares antigenic determinants with c-Jun/AP-1. In vitro translated c-Jun and c-Fos were also found to bind to the NF-S binding domain consisting of the sequence TGA(A/G)TCA that are known to be recognized by c-Jun/AP-1. Our results raise the possibility that the MMTV-LTR sequence element-766 to -737 by interacting with a Jun/Fos related protein play a role in MMTV transcription and/or the activation of int protooncogenes that are associated with murine mammary tumorigenesis. FAU - Siddique, H R AU - Siddique HR AD - Department of Cell and Molecular Biology, Medical College of Georgia, Augusta 30912-2100. FAU - Sarkar, N H AU - Sarkar NH LA - eng GR - CA-45123/CA/NCI NIH HHS/United States GR - CA-45127/CA/NCI NIH HHS/United States PT - Comparative Study PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (DNA-Binding Proteins) RN - 0 (Oligonucleotide Probes) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Proto-Oncogene Proteins c-fos) RN - 0 (Proto-Oncogene Proteins c-jun) RN - 0 (Transcription Factors) SB - IM MH - Animals MH - Base Sequence MH - Cell Line MH - Cell Nucleus/metabolism MH - DNA-Binding Proteins/*metabolism MH - Mammary Glands, Animal/metabolism MH - Mammary Tumor Virus, Mouse/*genetics MH - Mice MH - Molecular Sequence Data MH - Mutagenesis, Site-Directed MH - Oligonucleotide Probes MH - Protein Biosynthesis MH - Proto-Oncogene Proteins/*metabolism MH - Proto-Oncogene Proteins c-fos MH - Proto-Oncogene Proteins c-jun MH - *Repetitive Sequences, Nucleic Acid MH - Restriction Mapping MH - Sequence Homology, Nucleic Acid MH - Transcription Factors/*metabolism EDAT- 1990/10/15 00:00 MHDA- 1990/10/15 00:01 CRDT- 1990/10/15 00:00 PHST- 1990/10/15 00:00 [pubmed] PHST- 1990/10/15 00:01 [medline] PHST- 1990/10/15 00:00 [entrez] AID - S0006-291X(05)80216-5 [pii] AID - 10.1016/s0006-291x(05)80216-5 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 1990 Oct 15;172(1):348-56. doi: 10.1016/s0006-291x(05)80216-5.