Molecular cloning and functional characterization of two alternatively spliced Ntcp isoforms from mouse liver1

Biochim Biophys Acta. 1999 Apr 14;1445(1):154-9. doi: 10.1016/s0167-4781(99)00029-9.

Abstract

To isolate the murine Na+/taurocholate cotransporting polypeptide (Ntcp), we screened a mouse liver cDNA library and identified Ntcp1, encoding a 362 amino acid protein and Ntcp2, encoding a 317 amino acid protein which had a shorter C-terminal end. Both isoforms mediated saturable Na+-dependent transport of taurocholate when expressed in Xenopus laevis oocytes. Analysis of the gene revealed that Ntcp2 is produced by alternative splicing where the last intron is retained.

Publication types

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

MeSH terms

  • Alternative Splicing
  • Amino Acid Sequence
  • Animals
  • Base Sequence
  • Carrier Proteins / genetics*
  • Cloning, Molecular
  • Gene Library
  • Liver / metabolism*
  • Membrane Transport Proteins*
  • Mice
  • Molecular Sequence Data
  • Oocytes / metabolism
  • Organic Anion Transporters, Sodium-Dependent
  • Protein Isoforms / genetics
  • Sequence Alignment
  • Symporters
  • Xenopus laevis

Substances

  • Carrier Proteins
  • Membrane Transport Proteins
  • Organic Anion Transporters, Sodium-Dependent
  • Protein Isoforms
  • Symporters
  • sodium-bile acid cotransporter

Associated data

  • GENBANK/U95131
  • GENBANK/U95132