About: The material properties of the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) and its proteins are discussed. We review the viral structure, size, rigidity, lipophilicity, isoelectric point, buoyant density and centrifugation conditions, stability against pH, temperature, UV light, gamma radiation, and susceptibility to various chemical agents including solvents and detergents. Possible inactivation, downstream, and formulation conditions are given including suitable buffers and some first ideas for quality‐control methods. This information supports vaccine development and discussion with competent authorities during vaccine approval and is certainly related to drug‐targeting strategies and hygienics. Several instructive tables are given, including the pI and grand average of hydropathicity (GRAVY) of SARS‐CoV‐1 and ‐2 proteins in comparison. SARS‐CoV‐1 and SARS‐CoV‐2 are similar in many regards, so information can often be derived. Both are unusually stable, but sensitive at their lipophilic membranes. However, since seemingly small differences can have strong effects, for example, on immunologically relevant epitope settings, unevaluated knowledge transfer from SARS‐CoV‐1 to SARS‐CoV‐2 cannot be advised. Published knowledge regarding downstream processes, formulations and quality assuring methods is, as yet, limited. However, standard approaches employed for other viruses and vaccines seem to be feasible including virus inactivation, centrifugation conditions, and the use of adjuvants.   Goto Sponge  NotDistinct  Permalink

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  • The material properties of the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) and its proteins are discussed. We review the viral structure, size, rigidity, lipophilicity, isoelectric point, buoyant density and centrifugation conditions, stability against pH, temperature, UV light, gamma radiation, and susceptibility to various chemical agents including solvents and detergents. Possible inactivation, downstream, and formulation conditions are given including suitable buffers and some first ideas for quality‐control methods. This information supports vaccine development and discussion with competent authorities during vaccine approval and is certainly related to drug‐targeting strategies and hygienics. Several instructive tables are given, including the pI and grand average of hydropathicity (GRAVY) of SARS‐CoV‐1 and ‐2 proteins in comparison. SARS‐CoV‐1 and SARS‐CoV‐2 are similar in many regards, so information can often be derived. Both are unusually stable, but sensitive at their lipophilic membranes. However, since seemingly small differences can have strong effects, for example, on immunologically relevant epitope settings, unevaluated knowledge transfer from SARS‐CoV‐1 to SARS‐CoV‐2 cannot be advised. Published knowledge regarding downstream processes, formulations and quality assuring methods is, as yet, limited. However, standard approaches employed for other viruses and vaccines seem to be feasible including virus inactivation, centrifugation conditions, and the use of adjuvants.
Subject
  • Hygiene
  • Statistical process control
  • Natural environment based therapies
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