Reference : Isolation and characterization of the human prolactin gene
Scientific journals : Article
Life sciences : Biochemistry, biophysics & molecular biology
Isolation and characterization of the human prolactin gene
Truong, Anh T [> > > >]
Duez, Colette mailto [Université de Liège - ULiège > > Centre d'ingénierie des protéines >]
Belayew, Alexandra [> > > >]
Renard, André [ > > ]
Pictet, Raymond [> > > >]
Bell, Greame I [> > > >]
Martial, Joseph mailto [Université de Liège - ULiège > Département des sciences de la vie > GIGA-R : Biologie et génétique moléculaire >]
EMBO Journal
Oxford University Press
Yes (verified by ORBi)
United Kingdom
[en] Animals ; Base Sequence ; DNA Restriction Enzymes ; DNA, Recombinant ; Gene Expression Regulation ; *Genes ; Growth Hormone/genetics ; Humans ; Microscopy, Electron ; Nucleic Acid Renaturation ; Prolactin/*genetics ; Rats/genetics ; Species Specificity
[en] Prolactin (PRL) and growth hormone (GH) genes derive from a common ancestor and still share some sequence homologies. Their expression in the pituitary gland is regulated in opposite directions by most of the many hormones acting on them. This provides an interesting system to study sequences involved in gene expression. Using a human PRL cDNA clone as a probe, we screened a human genomic DNA library in lambda phage and isolated a single recombinant comprising the whole hPRL gene. It was characterized by restriction endonuclease mapping and cDNA hybridization, by DNA heteroduplex analysis and by nucleotide sequencing. The hPRL gene is present as a single copy per haploid genome, is approximately 10 kb long and contains four introns, three of which interrupt the coding sequence at the same locations as in the known GH and PRL genes. The origin of transcription was determined by S1 mapping on prolactinoma mRNAs. The search for direct and inverted repeats, as well as dyad symmetries was carried out in the 900-bp sequenced in the 5'-flanking region. Sequence homologies between hPRL, hGH and rPRL were derived from computer drawn matrices for these upstream regions.

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