CRALBP transcriptional regulation in ciliary epithelial, retinal Müller and retinal pigment epithelial cells

Exp Eye Res. 2003 Feb;76(2):257-60. doi: 10.1016/s0014-4835(02)00308-1.

Abstract

Cellular retinaldehyde binding protein (CRALBP) functions in the visual cycle and mutations in the RLBP1 gene can lead to blindness. RLBP1 promoter analyses have been pursued in vitro as an approach to deciphering the mechanism controlling cell-specific expression of CRALBP. Reporter activity of wildtype and mutant RLBP1 promoter constructs suggest that CRALBP transcriptional regulation may be similar in the ciliary epithelium (CE) and retinal pigment epithelium (RPE) but different in Müller cells. Results in RPE cells refine the location of an RLBP1 enhancer element to within -1826 to -1749 bp and a repressor element to within -702 to -635 bp.

Publication types

  • Letter
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Base Sequence
  • Carrier Proteins / genetics*
  • Cells, Cultured
  • Ciliary Body / metabolism*
  • Epithelial Cells / metabolism
  • Gene Expression Regulation*
  • Humans
  • Molecular Sequence Data
  • Pigment Epithelium of Eye / metabolism
  • Promoter Regions, Genetic
  • Retina / metabolism*
  • Transcription, Genetic

Substances

  • 11-cis-retinal-binding protein
  • Carrier Proteins