Imprinting analysis of 10 genes and/or transcripts in a 1.5-Mb MEST-flanking region at human chromosome 7q32

Genomics. 2004 Mar;83(3):402-12. doi: 10.1016/j.ygeno.2003.08.016.

Abstract

MEST is one of the imprinted genes in human. With the assistance of our integration map and the complete sequence in the registry, we mapped a total of 16 genes/transcripts at the 1.5-Mb MEST-flanking region at 7q32. This region has been suggested to form an imprinted gene cluster, because MEST and its three flanking genes/transcripts (MESTIT1, CPA4, and COPG2IT1) were reported to be imprinted, although two (TSGA14 and COPG2) were shown to escape imprinting. In this study, 10 other genes/transcripts were examined for their imprinting status in human fetal tissues. The results indicated that 8 genes/transcripts (NRF1, UBE2H, HSPC216, KIAA0265, FLJ14803, CPA2, CPA1, and DKFZp667F0312) were expressed biallelically. The imprinting status of two (TSGA13 and CPA5) was not conclusive, because of their weak and/or tissue-specific expression and inconstant results. These findings provided evidence that only 4 of the 16 genes/transcripts located to the region show monoallelic expression, while others are not involved in imprinting. Therefore, it is less likely that the MEST-flanking 7q32 region forms a large imprinted domain.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Alleles
  • Animals
  • Base Composition
  • Chromosomes, Human, Pair 7*
  • Female
  • Gene Expression Profiling
  • Genes*
  • Genome, Human
  • Genomic Imprinting*
  • Humans
  • Hybrid Cells
  • Male
  • Mice
  • Multigene Family
  • Physical Chromosome Mapping
  • Proteins / genetics*
  • Ubiquitin-Conjugating Enzymes / genetics

Substances

  • Proteins
  • mesoderm specific transcript protein
  • UBE2H protein, human
  • Ubiquitin-Conjugating Enzymes

Associated data

  • OMIM/180860