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Table 4 Calculated physiochemical properties by the ExPASy ProtParam server

From: Potential therapeutic target identification in the novel 2019 coronavirus: insight from homology modeling and blind docking study

Calculated parameters Template protein Target protein
Molecular weight 33845.72 33796.64
Theoretical pI 6.22 5.95
Amino acid composition (total) 306 306
Atomic composition C1499H2325N405O445S22 C1499H2318N402O445S22
Extinction coefficient 33640 33640
Estimated half-life 30 h (mammalian reticulocytes, in vitro). 30 h (mammalian reticulocytes, in vitro).
> 20 h (yeast, in vivo). > 20 h (yeast, in vivo).
> 10 h (Escherichia coli, in vivo). >10 h (Escherichia coli, in vivo).
Instability index 29.67 27.65
Aliphatic index 81.83 82.12
GRAVY − 0.049 − 0.019