A liver-specific isoform of the betaine/GABA transporter in the rat: cDNA sequence and organ distribution

Biochim Biophys Acta. 1996 Oct 2;1284(1):4-8. doi: 10.1016/0005-2736(96)00118-6.

Abstract

We report the cloning of a 2.2 kb cDNA encoding a Na(+)-and Cl- dependent betaine/GABA (gamma-aminobutyric acid) transporter from rat liver poly(A+) RNA. 5'-RACE revealed an additional 355 bases 5' to the 2.2 kb cDNA sequence. Northern analysis demonstrated two (2.2 kb and 2.6 kb) mRNA isoforms in rat liver. Betaine transporter mRNA was also detected in the brain, spleen, lung, and kidney using the 2.2 kb cDNA clone as a probe. Only the 2.6 kb mRNA from the liver hybridized with the 5'-RACE product.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • Betaine / metabolism
  • Carrier Proteins / genetics*
  • Carrier Proteins / metabolism
  • Cloning, Molecular
  • DNA, Complementary / genetics*
  • GABA Plasma Membrane Transport Proteins
  • Liver / metabolism*
  • Molecular Sequence Data
  • Organ Specificity
  • Rats
  • Sequence Analysis, DNA
  • Xenopus

Substances

  • Carrier Proteins
  • DNA, Complementary
  • GABA Plasma Membrane Transport Proteins
  • betaine plasma membrane transport proteins
  • Betaine

Associated data

  • GENBANK/U28927