Molecular diversity and accelerated evolution of C-type lectin-like proteins from snake venom

Tomohisa Ogawa, Takahito Chijiwa, Naoko Oda-Ueda, Motonori Ohno

Research output: Contribution to journalReview articlepeer-review

126 Citations (Scopus)

Abstract

A number of C-type lectin-like proteins that affect thrombosis and hemostasis by inhibiting or activating specific platelet membrane receptors or blood coagulation factors have been isolated from the venom of various snake species and characterized and more than 80 have been sequenced. Recent data on the primary sequences and 3D structures of C-type lectins and C-type lectin-like proteins from snake venoms have enabled us to analyze their molecular evolution. Statistical analysis of their cDNA sequences shows that C-type lectin-like proteins, with some exceptions, have evolved in an accelerated manner to acquire their diverse functions. Phylogenetic analysis shows that the A and B chains of C-type lectin-like proteins are clearly separated from C-type lectins and that the A and B chains are further divided into a group of platelet receptor-binding proteins and a group of coagulation factor-binding proteins. Elucidation of the tertiary structures of several C-type lectin-like proteins led to the discovery of a unique domain-swapping interaction between heterodimeric subunits, which creates a concave surface for ligand binding.

Original languageEnglish
Pages (from-to)1-14
Number of pages14
JournalToxicon
Volume45
Issue number1
DOIs
Publication statusPublished - 2005 Jan

Keywords

  • Accelerated evolution
  • C-type lectin
  • C-type lectin-like protein
  • Coagulation
  • Phylogeny
  • Platelet activation
  • Snake venom

ASJC Scopus subject areas

  • Toxicology

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