ChIP-Chip Identifies SEC23A, CFDP1, and NSD1 as TFII-I Target Genes in Human Neural Crest Progenitor Cells

Cleft Palate Craniofac J. 2013 May;50(3):347-50. doi: 10.1597/12-069. Epub 2012 Nov 12.

Abstract

Objectives : GTF2I and GTF2IRD1 genes located in Williams-Beuren syndrome (WBS) critical region encode TFII-I family transcription factors. The aim of this study was to map genomic sites bound by these proteins across promoter regions of developmental regulators associated with craniofacial development. Design : Chromatin was isolated from human neural crest progenitor cells and the DNA-binding profile was generated using the human RefSeq tiling promoter ChIP-chip arrays. Results : TFII-I transcription factors are recruited to the promoters of SEC23A, CFDP1, and NSD1 previously defined as TFII-I target genes. Moreover, our analysis revealed additional binding elements that contain E-boxes and initiator-like motifs. Conclusions : Genome-wide promoter binding studies revealed SEC23A, CFDP1, and NSD1 linked to craniofacial or dental development as direct TFII-I targets. Developmental regulation of these genes by TFII-I factors could contribute to the WBS-specific facial dysmorphism.

MeSH terms

  • Humans
  • Neural Crest*
  • Promoter Regions, Genetic
  • Proteins / genetics
  • Stem Cells
  • Transcription Factors, TFII* / genetics
  • Williams Syndrome / genetics

Substances

  • Proteins
  • Transcription Factors, TFII