Cysteine proteases of positive strand RNA viruses and chymotrypsin-like serine proteases. A distinct protein superfamily with a common structural fold.
FEBS Lett. 1989 Jan 30;243(2):103-14. doi: 10.1016/0014-5793(89)80109-7.
FEBS Lett. 1989.
PMID: 2645167
Review.