Designing fluorescent peptide sensors with dual specificity for the detection of HIV‑1 protease

Karla-Luiaw Herpoldt, Arbel Artzy-Schnirman, Andrew J. Christofferson, Adam J. Makarucha, Roberto de la Rica, Irene Yarovsky, Molly M. Stevens

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

HIV-1 protease is a key enzyme in the life cycle of HIV/AIDS, as it is responsible for the formation of the mature virus particle. We demonstrate here that phage-display peptides raised against this enzyme can be used as peptide sensors for the detection of HIV-1 protease in a simple, one-pot assay. The presence of the enzyme is detected through an energy transfer between two peptide sensors when simultaneously complexed with the target protein. The multivalent nature of this assay increases the specificity of the detection by requiring all molecules to be interacting in order for there to be a FRET signal.We also perform molecular dynamics simulations to explore the interaction between the protease and the peptides in order to guide the design of these peptide sensors and to understand the mechanisms which cause these simultaneous binding events. This approach aims to facilitate the development of new assays for enzymes that are not dependent on the cleavage of a substrate and do not require multiple washing steps.
LanguageEnglish
Pages7187-7195
Number of pages9
JournalChemistry of Materials
Volume27
Issue number20
DOIs
Publication statusPublished - 6 Oct 2015

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Peptides
Enzymes
Sensors
Assays
Bacteriophages
Viruses
Washing
Energy transfer
Molecular dynamics
Life cycle
Peptide Hydrolases
Display devices
Human immunodeficiency virus 1 p16 protease
Proteins
Molecules
Computer simulation
Substrates

Keywords

  • HIV diagnostics
  • HIV antibodies
  • fluorescent peptide sensors
  • HIV detection

Cite this

Herpoldt, K-L., Artzy-Schnirman, A., Christofferson, A. J., Makarucha, A. J., de la Rica, R., Yarovsky, I., & Stevens, M. M. (2015). Designing fluorescent peptide sensors with dual specificity for the detection of HIV‑1 protease. Chemistry of Materials, 27(20), 7187-7195. https://doi.org/10.1021/acs.chemmater.5b03651
Herpoldt, Karla-Luiaw ; Artzy-Schnirman, Arbel ; Christofferson, Andrew J. ; Makarucha, Adam J. ; de la Rica, Roberto ; Yarovsky, Irene ; Stevens, Molly M. / Designing fluorescent peptide sensors with dual specificity for the detection of HIV‑1 protease. In: Chemistry of Materials. 2015 ; Vol. 27, No. 20. pp. 7187-7195.
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Herpoldt, K-L, Artzy-Schnirman, A, Christofferson, AJ, Makarucha, AJ, de la Rica, R, Yarovsky, I & Stevens, MM 2015, 'Designing fluorescent peptide sensors with dual specificity for the detection of HIV‑1 protease' Chemistry of Materials, vol. 27, no. 20, pp. 7187-7195. https://doi.org/10.1021/acs.chemmater.5b03651

Designing fluorescent peptide sensors with dual specificity for the detection of HIV‑1 protease. / Herpoldt, Karla-Luiaw ; Artzy-Schnirman, Arbel ; Christofferson, Andrew J.; Makarucha, Adam J.; de la Rica, Roberto; Yarovsky, Irene; Stevens, Molly M.

In: Chemistry of Materials, Vol. 27, No. 20, 06.10.2015, p. 7187-7195.

Research output: Contribution to journalArticle

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Herpoldt K-L, Artzy-Schnirman A, Christofferson AJ, Makarucha AJ, de la Rica R, Yarovsky I et al. Designing fluorescent peptide sensors with dual specificity for the detection of HIV‑1 protease. Chemistry of Materials. 2015 Oct 6;27(20):7187-7195. https://doi.org/10.1021/acs.chemmater.5b03651