Classification of PDZ domains

Ilya Bezprozvanny, Anton Maximov

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


A diverse family of PDZ domains has been identified, but the rules that govern their ligand specificity are not clear. Here we propose a novel classification of PDZ domains based on the nature of amino acids in the two critical positions in the PDZ domain fold. Using these principles, we classified PDZ domains present in the SMART database. Using yeast two-hybrid, in vitro pull-down and plasmon surface resonance assays, we demonstrated that in agreement with their position in the proposed classification the Mint1-1, hINADL-5, and PAR6 PDZ domains display similar dual ligand specificity. The proposed classification helps to organize PDZ domain containing proteins.

Original languageEnglish (US)
Pages (from-to)457-462
Number of pages6
JournalFEBS Letters
Issue number3
StatePublished - Dec 14 2001


  • Mint1
  • PAR6
  • PDZ domain
  • Primary sequence analysis
  • Sequence database search

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology


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