id author title date pages extension mime words sentences flesch summary cache txt cord-305755-6jup93v4 Gouveia, Duarte Proteotyping SARS-CoV-2 Virus from Nasopharyngeal Swabs: A Proof-of-Concept Focused on a 3 Min Mass Spectrometry Window 2020-07-22 .txt text/plain 6708 328 50 In this proof-of-concept study, simili nasopharyngeal swabs spiked with different quantities of purified SARS-CoV-2 viral material were used to develop a nanoLC–MS/MS acquisition method, which was then successfully applied on COVID-19 clinical samples. By using a short LC gradient focusing on the region of interest identified in our previous study, we tested the detection of the virus in samples containing different quantities of viral peptides, as well as COVID-19 clinical samples, paving the way for the development of time-efficient viral diagnostic tests based on an alternative platform. Simili swabs containing specific quantities of SARS-CoV-2 virus and the equivalent of 8.4% of the nasal matrix protein material collected during sampling were analyzed by MS/MS with a short gradient. To foster the development of alternative detection methods for SARS-CoV-2, we performed a proof-of-concept study to assess the potential of MS/MS for proteotyping SARS-CoV-2: (i) in simulated nasal swabs containing different quantities of viral peptides and (ii) in nasopharyngeal swabs from COVID-19 diagnosed patients. ./cache/cord-305755-6jup93v4.txt ./txt/cord-305755-6jup93v4.txt