Библиотека института физики им. Л.В. Киренского СО РАН

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

Формат представления найденных документов:
полный	информационный	краткий

Поисковый запрос: (<.>K=MT: Oligonucleotides: Diagnostics and Biosensors<.>)

Общее количество найденных документов : 1

Discovery of DNA aptamers targeting SARS-CoV-2 nucleocapsid protein and protein-binding epitopes for label-free COVID-19 diagnostics / S. Poolsup, E. Zaripov, N. Huttmann [et al.] // Mol. Ther. Nucleic Acids. - 2023. - Vol. 31. - P. 731-743, DOI 10.1016/j.omtn.2023.02.010. - Cited References: 74. - M.V.B. thanks the Canadian Institutes of Health Research grant OV1-170353 for providing financial support. Molecular modeling and docking were supported by a grant from the Russian Science Foundation (project number 21-73-20240) for A.S.K. S.P. is thankful to Dr. Bob Dass, Dylan Tanner, and Dr. Degang Liu, Sartorius for generously providing excellent technical training and consumable support for binding assay on BLI, and Aldo Jordan for assisting with creating the figures. The authors also thank John L. Holmes’s mass spectrometry facility for providing access to perform nLC-MS/MS. Lastly, the authors thank the JCSS Joint Super Computer Center of the Russian Academy of Sciences for providing supercomputers for computer simulations . - ISSN 2162-2531
Кл.слова (ненормированные):
MT: Oligonucleotides: Diagnostics and Biosensors -- COVID-19 diagnosis -- SARS-CoV-2 nucleocapsid detection -- label-free optical aptasensor -- aptamer selection -- biolayer interferometry -- binding motif identification
Аннотация: The spread of COVID-19 has affected billions of people across the globe, and the diagnosis of viral infection still needs improvement. Because of high immunogenicity and abundant expression during viral infection, SARS-CoV-2 nucleocapsid (N) protein could be an important diagnostic marker. This study aimed to develop a label-free optical aptasensor fabricated with a novel single-stranded DNA aptamer to detect the N protein. The N-binding aptamers selected using asymmetric-emulsion PCR-SELEX and their binding affinity and cross-reactivity were characterized by biolayer interferometry. The tNSP3 aptamer (44 nt) was identified to bind the N protein of wild type and Delta and Omicron variants with high affinity (KD in the range of 0.6–3.5 nM). Utilizing tNSP3 to detect the N protein spiked in human saliva evinced the potential of this aptamer with a limit of detection of 4.5 nM. Mass spectrometry analysis was performed along with molecular dynamics simulation to obtain an insight into how tNSP3 binds to the N protein. The identified epitope peptides are localized within the RNA-binding domain and C terminus of the N protein. Hence, we confirmed the performance of this aptamer as an analytical tool for COVID-19 diagnosis.

Смотреть статью,
WOS,
Читать в сети ИФ
Держатели документа:
Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada
John L. Holmes Mass Spectrometry Facility, Faculty of Science, University of Ottawa, Ottawa, ON K1N 6N5, Canada
Laboratory for Digital Controlled Drugs and Theranostics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk 660036, Russia
Prof. V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, Krasnoyarsk 660022, Russia
Department of Chemistry, Siberian Federal University, Krasnoyarsk 660041, Russia
Laboratory of Physics of Magnetic Phenomena, Kirensky Institute of Physics, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Poolsup, S.; Zaripov, E.; Huttmann, N.; Minic, Z.; Artyushenko, P. V.; Shchugoreva, I. A.; Tomilin, F. N.; Томилин, Феликс Николаевич; Kichkailo, A. S.; Berezovski, M. V.
}
Найти похожие