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Cellular retinoid binding proteins

  • Johan Sundelin
  • , Ulf Eriksson
  • , Håkan Melhus
  • , Magnus Nilsson
  • , Joakim Lundvall
  • , Claes Olof Båvik
  • , Eva Hansson
  • , Brehon Laurent
  • , Per A. Peterson

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

The cellular retinol-binding protein (CRBP) and the cellular retinoic acid binding protein (CRABP) have similar physicochemical characteristics. The amino acid sequences of rat CRBP and bovine CRABP have been elucidated and they display 40% sequence identity. Both protein sequences appear to be evolutionarily highly conserved. The amino acid sequence of human CRBP, deduced from a cDNA-clone, is 96% identical to the rat CRBP sequence. CRBP and CRABP are members of a protein family, all members of which may bind hydrophobic ligands and interact with membrane components. All members of the protein family are probably related in tertiary structure and might interact with membrane components through two regions with a high probability for α-helix. The tissue distribution of CRBP and CRABP, together with their relation to lipid transporting proteins suggests that CRBP and CRABP are cellular transporting proteins for retinol and retinoic acid, respectively.

Original languageEnglish
Pages (from-to)175-185
Number of pages11
JournalChemistry and Physics of Lipids
Volume38
Issue number1-2
DOIs
StatePublished - 30 Aug 1985
Externally publishedYes

Keywords

  • cellular retinoic acid binding protein
  • cellular retinol-binding protein
  • sequence homology
  • transport
  • vitamin A

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