Inhibitory peptides of the sulfotransferase domain of the heparan sulfate enzyme, N-Deacetylase-N-sulfotransferase-1

Tarsis F. Gesteira, Vivien J. Coulson-Thomas, Alessandro Taunay-Rodrigues, Vitor Oliveira, Bryan E. Thacker, Maria A. Juliano, Renata Pasqualini, Wadih Arap, Ivarne L.S. Tersariol, Helena B. Nader, Jeffrey D. Esko, Maria A.S. Pinhal

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


N-Deacetylase-N-sulfotransferase 1 (Ndst1) catalyzes the initial modification of heparan sulfate and heparin during their biosynthesis by removal of acetyl groups from subsets of N-acetylglucosamine units and subsequent sulfation of the resulting free amino groups. In this study, we used a phage display library to select peptides that interact with Ndst1, with the aim of finding inhibitors of the enzyme. The phage library consisted of cyclic random 10-mer peptides expressed in the phage capsid protein pIII. Selection was based on the ability of engineered phage to bind to recombinant murine Ndst1 (mNdst1) and displacement with heparin. Peptides that were enriched through multiple cycles of binding and disassociation displayed two specific sequences, CRGWRGEKIGNC and CNMQALSMPVTC. Both peptides inhibited mNdst1 activity in vitro, however, by distinct mechanisms. The peptide CRGWRGEKIGNC presents a chemokine-like repeat motif (BXX, where B represents a basic amino acid and X is a noncharged amino acid) and binds to heparan sulfate, thus blocking the binding of substrate to the enzyme. The peptide NMQALSMPVT inhibits mNdst1 activity by direct interaction with the enzyme near the active site. The discovery of inhibitory peptides in this way suggests a method for developing peptide inhibitors of heparan sulfate biosynthesis.

Original languageEnglish (US)
Pages (from-to)5338-5346
Number of pages9
JournalJournal of Biological Chemistry
Issue number7
StatePublished - Feb 18 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Cell Biology


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