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Pituitary-specific factor binding to the human prolactin, growth hormone, and placental lactogen genes
Lemaigre, F. P.; Peers, Bernard; Lafontaine, D. A. et al.
1989In DNA, 8 (3), p. 149-59
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Keywords :
Animals; Cells, Cultured; Chromosome Deletion; Deoxyribonucleases/analysis; Gene Expression Regulation; Growth Hormone/*genetics; Hela Cells; Humans; Molecular Sequence Data; Oligonucleotides/analysis; Placental Lactogen/*genetics; Plasmids; Prolactin/*genetics; Promoter Regions, Genetic; Rats; Sequence Homology, Nucleic Acid; Transcription, Genetic
Abstract :
[en] The human genes coding for growth hormone (GH), chorionic somatomammotropin (placental lactogen, CS), and prolactin (Prl) are related evolutionarily but are expressed in phenotypically distinct cell types despite their nucleotide sequence homology. We show here that the promoters of the human Prl and CS genes contain cis-acting sequences that confer pituitary-specific expression in a cell-free transcription assay. Similar data are obtained with the human GH gene, consistent with earlier work by others. Footprinting analysis shows that neighboring sequences in each of these three promoters are protected from deoxyribonuclease I digestion by rat pituitary cell extracts. Footprinting competition experiments and gel retardation assays with synthetic oligonucleotides suggest that a single factor is responsible for the pituitary-specific footprints seen on the human Prl, CS, and GH genes. They also suggest that this factor is identical or closely related to the trans-acting factor GHF-1/Pit-1. Similarities with and differences from the rat GH and Prl genes are discussed.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Lemaigre, F. P.
Peers, Bernard ;  Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire
Lafontaine, D. A.
Mathy, Marianne ;  Université de Liège - ULiège > Département des sciences de la motricité > Unité de recherche sur l'os et le cartillage (U.R.O.C.)
Rousseau, G. G.
Belayew, A.
Martial, Joseph ;  Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire
Language :
English
Title :
Pituitary-specific factor binding to the human prolactin, growth hormone, and placental lactogen genes
Publication date :
1989
Journal title :
DNA
ISSN :
0198-0238
Publisher :
Mary Ann Liebert, Inc., New York, United States - New York
Volume :
8
Issue :
3
Pages :
149-59
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 August 2009

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