Imprinting of PEG3, the human homologue of a mouse gene involved in nurturing behavior.

Journal Article (Journal Article)

The paternally expressed Peg3 gene in mice encodes an unusual Krüppel-type zinc finger protein implicated in critical cellular and behavioral functions including growth, apoptosis, and maternal nurturing behavior. Methylation and expression analyses were used to determine whether PEG3 on chromosome 19q13.4 is imprinted in humans. The PEG3 promoter is encompassed within a large CpG-rich region that is differentially methylated in fetal tissues. Furthermore, expression studies demonstrate that PEG3 is ubiquitously imprinted throughout development and postnatally. Multiple isoforms of the PEG3 gene, including a novel transcript, are paternally expressed. These results are the first to show that human chromosome 19q13.4 contains an imprinted region. The imprinted status of PEG3 throughout life coupled with its neural expression and putative roles in regulating cell growth suggests that PEG3 may be a susceptibility locus for cancer as well as neurobehavioral deficits.

Full Text

Duke Authors

Cited Authors

  • Murphy, SK; Wylie, AA; Jirtle, RL

Published Date

  • January 1, 2001

Published In

Volume / Issue

  • 71 / 1

Start / End Page

  • 110 - 117

PubMed ID

  • 11161803

International Standard Serial Number (ISSN)

  • 0888-7543

Digital Object Identifier (DOI)

  • 10.1006/geno.2000.6419


  • eng

Conference Location

  • United States