Dual labeled peptides as tools to study receptors: Nanomolar affinity derivatives of TIPP (Tyr-Tic-Phe-Phe) containing an affinity label and biotin as probes of δ opioid receptors

Jane V. Aldrich, Vivek Kumar, Thomas F. Murray, Wei Guang, Jia Bei Wang

Research output: Contribution to journalArticle


A general strategy for the design of dual labeled peptides was developed, and derivatives of the δ opioid receptor (DOR) selective antagonist TIPP (Tyr-Tic-Phe-PheOH) containing both an affinity label and biotin were prepared by solid-phase synthesis. Tyr-Tic-Phe-Phe(p-X)-Asp-NH(CH2CH 2O)2-CH2CH2NH-biotin (where X = N=C=S or NHCOCH2Br) exhibit nanomolar DOR affinity. The ability to detect receptors labeled with these peptides following solubilization and SDS-PAGE demonstrate the applicability of this design approach for dual labeled peptide derivatives.

Original languageEnglish (US)
Pages (from-to)201-204
Number of pages4
JournalBioconjugate Chemistry
Issue number2
StatePublished - Feb 1 2009


All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Bioengineering
  • Biomedical Engineering
  • Pharmacology
  • Pharmaceutical Science
  • Organic Chemistry

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