Retina-specific expression from the IRBP promoter in transgenic mice is conferred by 212 bp of the 5'-flanking region

Biochem Biophys Res Commun. 1991 Nov 27;181(1):159-65. doi: 10.1016/s0006-291x(05)81395-6.

Abstract

IRBP is a photoreceptor-specific glycoprotein that has been suggested as a retinoid carrier in the visual process. Previous research has shown that 1.3 kb of 5'-flanking sequence from the human IRBP gene is sufficient to promote photoreceptor-specific expression of reporter genes in transgenic mice. To define more narrowly the sequences that promote tissue-specific expression, chimeric constructs with shorter promoters were used to generate transgenic mice. The bacterial CAT gene was fused to fragments of 706 bp or 212 bp from the 5' end of the human IRBP gene. Analysis of the three transgenic families bearing the 706 bp IRBP promoter revealed that CAT expression was confined to the neuro-retina and the pineal gland. Analysis of the four transgenic families bearing the 212 bp IRBP promoter revealed the same tissue-specific CAT expression in three families. These results establish that tissue-specific expression of IRBP can be regulated by a short 212 bp promoter which has been conserved between humans and mice.

Publication types

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

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • Chloramphenicol O-Acetyltransferase / genetics
  • Chloramphenicol O-Acetyltransferase / metabolism
  • Eye Proteins / genetics*
  • Genetic Vectors
  • Humans
  • Mice
  • Mice, Transgenic
  • Molecular Sequence Data
  • Plasmids
  • Promoter Regions, Genetic*
  • Recombinant Fusion Proteins / metabolism
  • Restriction Mapping
  • Retina / physiology*
  • Retinol-Binding Proteins / genetics*
  • Sequence Homology, Nucleic Acid

Substances

  • Eye Proteins
  • Recombinant Fusion Proteins
  • Retinol-Binding Proteins
  • interstitial retinol-binding protein
  • Chloramphenicol O-Acetyltransferase

Associated data

  • GENBANK/M64055
  • GENBANK/M64056
  • GENBANK/M64057
  • GENBANK/M64058
  • GENBANK/M64059
  • GENBANK/M64060
  • GENBANK/S67100
  • GENBANK/S67113
  • GENBANK/S74365
  • GENBANK/S74367