First Author | Takeuchi S | Year | 1999 |
Journal | Biochim Biophys Acta | Volume | 1448 |
Issue | 3 | Pages | 512-8 |
PubMed ID | 9990303 | Mgi Jnum | J:52452 |
Mgi Id | MGI:1329304 | Doi | 10.1016/s0167-4889(98)00165-7 |
Citation | Takeuchi S, et al. (1999) A possible involvement of melanocortin 3 receptor in the regulation of adrenal gland function in the chicken. Biochim Biophys Acta 1448(3):512-8 |
abstractText | The melanocortin 3 receptor (MC3-R) in the melanocortin receptor family has been identified as a neural receptor subtype mainly expressed in the brain in mammals. We report here the isolation of the chicken gene for MC3-R, CMC3, displaying different tissue distribution from mammalian counterparts. The CMC3 gene was found to be a single copy gene encoding a 325 amino acid protein, sharing 75.3-76.8% identity with mammalian counterparts. When assessed by RT-PCR, the CMC3 mRNA was not detected in the brain but was exclusively expressed in adrenal glands, where Agouti-related protein/Agouti-related transcript (AGRP/ART), a newly identified endogenous antagonist of MC3-R, is expressed in mammals, raising the possibility that the CMC3 plays a role in complicated regulation of the gland function by melanocortins and AGRP/ART in the chicken. Noteworthy, MC1-R gene was found to be a quite unique member of the chicken MC-R family with regard to GC content and codon usage. It may reflect as yet unidentified evolutionary pressure operating specifically on the gene. |