Evolution of the hepcidin gene in primates

Ludovica Segat, Alessandra Pontillo, Michele Milanese, Alessandro Tossi, Sergio Crovella

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Abstract

Background: Hepcidin/LEAP-1 is an iron regulatory hormone originally identified as an antimicrobial peptide. As part of a systematic analysis of the evolution of host defense peptides in primates, we have sequenced the orthologous gene from 14 species of non-human primates. Results: The sequence of the mature peptide is highly conserved amongst all the analyzed species, being identical to the human one in great apes and gibbons, with a single residue conservative variation in Old-World monkeys and with few substitutions in New-World monkeys. Conclusion: Our analysis indicates that hepcidin's role as a regulatory hormone, which involves interaction with a conserved receptor (ferroportin), may result in conservation over most of its sequence, with the exception of the stretch between residues 15 and 18, which in New-World monkeys (as well as in other mammals) shows a significant variation, possibly indicating that this structural region is involved in other functions.

Original languageEnglish
Article number120
JournalBMC Genomics
Volume9
DOIs
Publication statusPublished - Mar 5 2008

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ASJC Scopus subject areas

  • Medicine(all)

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