Collectrin, a homologue of ACE2, its transcriptional control and functional perspectives

Yanling Zhang, Jun Wada

Research output: Contribution to journalShort surveypeer-review

20 Citations (Scopus)


Collectrin is a type I membrane protein and shares significant homology with C-terminal domain of angiotensin-converting enzyme-2 (ACE2). However, collectrin lacks catalytic domain and it suggests the presence of uncharacterized physiological functions of collectrin. Collectrin is transcriptionally regulated by hepatocyte nuclear factor-α and -β and is highly expressed on renal proximal tubules and collecting ducts as well as pancreatic β-cells. Recent in vitro and in vivo studies demonstrated interesting physiological roles of collectrin related to insulin secretion, formation of primary cilia, renal cyst formation and amino acid transport. The common underlying molecular mechanism may be suggested by the evidence that collectrin binds to SNARE complex by interacting with snapin. Collectrin is involved in the process of vesicle transport and membrane fusion and thus it delivers insulin for exocytosis or various membrane proteins to apical plasmalemma and primary cilia. Collectrin may be the new therapeutic target for various pathological processes such as diabetes, polycystic kidney disease, hypertension and aminoaciduria.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalBiochemical and Biophysical Research Communications
Issue number1
Publication statusPublished - Nov 9 2007


  • Amino acid transport
  • Collectrin
  • Insulin secretion
  • Primary cilia

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology


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