Mit1/Lb9 and Copg2, new members of mouse imprinted genes closely linked to Peg1/Mest(1)

FEBS Lett. 2000 Apr 28;472(2-3):230-4. doi: 10.1016/s0014-5793(00)01461-7.


Two mouse genes, Mit1/Lb9 and Copg2, linked to Peg1/Mest on mouse chromosome 6, were identified to be imprinted maternally and paternally, respectively. Mit1/Lb9 encoding untranslated transcripts resides within the intron 20 of Copg2. The gene is maternally imprinted in adult mouse brain, partially imprinted in other tissues. Copg240 kb genomic region, being expressed ubiquitously in mouse tissues with a partial imprinting pattern in embryos, neonates, and adult brain in contrast to maternally imprinted human COPG2. In addition, we identified an antisense transcript of Copg2, Copg2AS, which overlaps 3'-UTRs of Copg2 and Peg1/Mest. The Copg2AS transcript is maternally imprinted in embryos, neonates, and adult tissues.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • Coatomer Protein / genetics*
  • DNA, Complementary
  • Gene Expression
  • Genetic Linkage*
  • Genomic Imprinting*
  • Humans
  • Mice
  • Mice, Inbred C57BL
  • Molecular Sequence Data
  • Proteins / genetics*
  • Sequence Homology, Amino Acid
  • Vesicular Transport Proteins


  • COPG2 protein, human
  • Coatomer Protein
  • Copg2 protein, mouse
  • DNA, Complementary
  • Proteins
  • Vesicular Transport Proteins
  • mesoderm specific transcript protein

Associated data

  • GENBANK/AF205065
  • GENBANK/AF217545