Recombinant poliovirus 3C protease The enzyme application to protein specific fragmentation
- 3 June 1991
- journal article
- Published by Wiley in FEBS Letters
- Vol. 283 (2) , 291-294
- https://doi.org/10.1016/0014-5793(91)80611-6
Abstract
Active 3C protease of poliovirus I(M) was obtained when cloning and expressing fragment HindII‐HindIII (bases from 5240 to 6056) of cDNA in vector pTTQ8 in E.coli cells. As shown, fragment 3D of polymerase covalently bound to 3C does not deprive the enzyme of its specific proteolytic activity. The absence of 26 N‐terminal amino acids in 3C entails its inactivation. The recombinant 3C protease cleaved peptide bond Gln‐Gly not only in virus polyprotein, but also in molecules of β‐galactosidase and bovine catalase.Keywords
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