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Class: All beta proteins (24004)
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Fold: Trypsin-like serine proteases (1752)
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Superfamily: Trypsin-like serine proteases (1752)
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Family: Viral cysteine protease of trypsin fold (145)
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Protein domain: Coronavirus main proteinase (3Cl-pro, putative coronavirus nsp2) (75)
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Human coronavirus [TaxId: 443239] (2)
3D23A:; B:; C:; D:MAIN PROTEASE OF HCOV-HKU1
3TLOA:; B:CRYSTAL STRUCTURE OF HCOV-NL63 3C-LIKE PROTEASE