Abstract
Our published studies on the self- and co-assembly of cyclo-HH peptides demonstrated their capacity to coordinate with Zn(II), their enhanced photoluminescence and their ability to self-encapsulate epirubicin, a chemotherapy drug. Here, we provide a detailed description of computational and experimental methodology for the study of cyclo-HH self- and co-assembling mechanisms, photoluminescence, and drug encapsulation properties. We outline the experimental protocols, which involve fluorescence spectroscopy, transmission electron microscopy, and atomic force microscopy protocols, as well as the computational protocols, which involve structural and energetic analysis of the assembled nanostructures. We suggest that the computational and experimental methods presented here can be generalizable, and thus can be applied in the investigation of self- and co-assembly systems involving other short peptides, encapsulating compounds and binding to ions, beyond the particular ones presented here.
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Acknowledgments
A.A.O acknowledges the Texas A&M University Graduate Diversity Fellowship from the Texas A&M University Graduate and Professional School. All MD simulations and computational analysis were conducted using the Ada supercomputing cluster at the Texas A&M High Performance Research Computing Facility, and additional facilities at Texas A&M University. E.G. acknowledges the support part by the European Research Council under the European Union Horizon 2020 research and innovation program (No. 694426). E.G. also acknowledges support from NSF-BSF Joint Funding Research Grants (No. 2020752). Y.C. gratefully acknowledges the Center for Nanoscience and Nanotechnology of Tel Aviv University for financial support. PT acknowledges support from the National Science Foundation (Award Number 2104558; NSF-BSF: Computational and Experimental Design of Novel Peptide Nanocarriers for Cancer Drugs).
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Orr, A.A., Chen, Y., Gazit, E., Tamamis, P. (2022). Computational and Experimental Protocols to Study Cyclo-dihistidine Self- and Co-assembly: Minimalistic Bio-assemblies with Enhanced Fluorescence and Drug Encapsulation Properties. In: Simonson, T. (eds) Computational Peptide Science. Methods in Molecular Biology, vol 2405. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-1855-4_10
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