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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

cDNA cloning and developmental alterations in gene expression of the two Pit-1/GHF-1 transcription factors in the chicken pituitary.

Pit-1/GHF-1 (Pit-1) transcription factors promote the gene expressions for growth hormone ( GH), prolactin ( PRL), and the beta chain of thyroid-stimulating hormone in vertebrate pituitary glands. The present study analyzed the nature of chicken Pit-1s (cPit-1s) and their developmental expressions in the pituitary. Chicken pituitary expressed two cPit-1 mRNAs encoding cPit-1alpha and cPit-1gamma composed of 335 and 327 amino acid residues, respectively. They possessed different N-terminal regions and the common C-terminal regions containing a POU-specific domain and a POU homeodomain. Northern blot analysis revealed the pituitary-specific expressions of these Pit-1 mRNAs, and the Pit-1alpha mRNA expressions were two to three times higher than those for Pit-1gamma in both cephalic and caudal lobes of the pituitary. The cPit-1alpha and gamma mRNA expressions simultaneously increased after hatching until 4 weeks and then slightly decreased at 5 weeks. Similar gene expression profiles were observed for GH and PRL during the posthatch developmental period.[1]

References

  1. cDNA cloning and developmental alterations in gene expression of the two Pit-1/GHF-1 transcription factors in the chicken pituitary. Tanaka, M., Yamamoto, I., Ohkubo, T., Wakita, M., Hoshino, S., Nakashima, K. Gen. Comp. Endocrinol. (1999) [Pubmed]
 
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