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Evolution of the hepcidin gene in primates.


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.

SUBMITTER: Segat L 

PROVIDER: S-EPMC2294130 | biostudies-literature | 2008

REPOSITORIES: biostudies-literature

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Evolution of the hepcidin gene in primates.

Segat Ludovica L   Pontillo Alessandra A   Milanese Michele M   Tossi Alessandro A   Crovella Sergio S  

BMC genomics 20080305


<h4>Background</h4>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.<h4>Results</h4>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-Wo  ...[more]

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