PMID- 1472022 OWN - NLM STAT- MEDLINE DCOM- 19930128 LR - 20190612 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 189 IP - 2 DP - 1992 Dec 15 TI - Combinatorial crosstalk of transacting factors binding to the L-type pyruvate kinase promoter elements analysed in vitro. PG - 1119-28 AB - Five Dnase 1 footprints, termed boxes L1 to L5, have been characterized in the 280 bp upstream from the cap site of the L-type pyruvate kinase (L-PK) gene. They bind from 3' to 5', the factors HNF1, HNF4, MLTF, and a non-identified protein referred to as L5 binding factor (L5-BF). These elements, individually or variably combined, were tested by cell-free transcription. The L1 box stimulates both L-PK and TK promoters, but in the context of L-PK promoter, it cooperates with the L3 element to reach a high level of transcriptional activation. The L3 and L4 elements exhibit weaker influences, increased by homologous or heterologous interactions. The L5 box behaves as a promoter-dependent negative regulatory element. FAU - Puzenat, N AU - Puzenat N AD - ICGM, Laboratoire de recherches en genetique et pathologie moleculaires, INSERM U.129, universite Paris 5, CHU Cochin, France. FAU - Vaulont, S AU - Vaulont S FAU - Kahn, A AU - Kahn A FAU - Raymondjean, M AU - Raymondjean M LA - eng PT - Journal Article PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (DNA-Binding Proteins) RN - 0 (Hepatocyte Nuclear Factor 4) RN - 0 (Isoenzymes) RN - 0 (Nuclear Proteins) RN - 0 (Oligodeoxyribonucleotides) RN - 0 (Phosphoproteins) RN - 0 (Transcription Factors) RN - 126548-29-6 (Hepatocyte Nuclear Factor 1) RN - 138674-15-4 (Hepatocyte Nuclear Factor 1-beta) RN - EC 2.7.1.40 (Pyruvate Kinase) RN - EC 3.1.21.1 (Deoxyribonuclease I) SB - IM MH - Animals MH - Base Sequence MH - Binding Sites MH - Brain/*enzymology MH - DNA-Binding Proteins/*metabolism MH - Deoxyribonuclease I MH - Hepatocyte Nuclear Factor 1 MH - Hepatocyte Nuclear Factor 1-beta MH - Hepatocyte Nuclear Factor 4 MH - Isoenzymes/*genetics MH - Liver/*enzymology MH - Molecular Sequence Data MH - Nuclear Proteins/*metabolism MH - Oligodeoxyribonucleotides MH - *Phosphoproteins MH - Plasmids MH - Polymerase Chain Reaction/methods MH - *Promoter Regions, Genetic MH - Pyruvate Kinase/*genetics MH - Sequence Deletion MH - Transcription Factors/*metabolism MH - Transcription, Genetic EDAT- 1992/12/15 00:00 MHDA- 1992/12/15 00:01 CRDT- 1992/12/15 00:00 PHST- 1992/12/15 00:00 [pubmed] PHST- 1992/12/15 00:01 [medline] PHST- 1992/12/15 00:00 [entrez] AID - 0006-291X(92)92320-W [pii] AID - 10.1016/0006-291x(92)92320-w [doi] PST - ppublish SO - Biochem Biophys Res Commun. 1992 Dec 15;189(2):1119-28. doi: 10.1016/0006-291x(92)92320-w.