Structure-Based Optimization of a Peptidyl Inhibitor against Calcineurin-Nuclear Factor of Activated T Cell (NFAT) Interaction

نویسندگان

  • Ziqing Qian
  • Patrick G. Dougherty
  • Tao Liu
  • Shameema Oottikkal
  • Patrick G. Hogan
  • Christopher M. Hadad
  • Dehua Pei
چکیده

Calcineurin inhibitors such as cyclosporine A and FK506 are effective immunosuppressants but produce severe side effects. Rational modification of a previously reported peptide inhibitor, GPHPVIVITGPHEE (KD ∼ 500 nM), by replacing the two valine residues with tert-leucine and the C-terminal proline with a cis-proline analogue, gave an improved inhibitor ZIZIT-cisPro, which binds to calcineurin with a KD value of 2.6 nM and is more resistant to proteolysis.

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عنوان ژورنال:

دوره 57  شماره 

صفحات  -

تاریخ انتشار 2014