title: Pit-1 and Pit-2 role in growth hormone gene regulation.
abstract: The role of the POU domain transcription factor Pit-1 (GHF-1) in differentiation and proliferation of the somatotrophic lineage is well known. In our study of differential splicing of the PIT1 gene we found a new protein, Pit-2, in which 26 amino acids are inserted into the transactivation domain. Pit-2 can activate the growth hormone promoter but has lost the ability to activate the prolactin promoter or PIT1 promoter itself.
authors.affiliation: Centro de Biología Molecular (CSIC-UAM), Universidad Autónoma de Madrid, Cantoblanco, Spain.
authors.forename: V
authors.initials: V
authors.lastname: Vila
authors.forename: O
authors.initials: O
authors.lastname: Jiménez
authors.forename: A
authors.initials: A
authors.lastname: Güell
authors.forename: J L
authors.initials: JL
authors.lastname: Castrillo
mesh_terms: D004274:DNA, Recombinant; D004268:DNA-Binding Proteins / Q000235:genetics / Q000502:physiology*; D005786:Gene Expression Regulation / Q000502:physiology*; D005796:Genes; D013006:Growth Hormone / Q000235:genetics*; D011388:Prolactin / Q000235:genetics; D050817:Transcription Factor Pit-1; D014157:Transcription Factors / Q000235:genetics / Q000502:physiology*; D015533:Transcriptional Activation
chemical_list: D004274:DNA, Recombinant; D004268:DNA-Binding Proteins; D050817:Transcription Factor Pit-1; D014157:Transcription Factors; D011388:Prolactin; D013006:Growth Hormone