3S45:
reference: Critical differences in HIV-1 and HIV-2 protease specificity for clinical inhibitors., Tie Y, Wang YF, Boross PI, Chiu TY, Ghosh AK, Tozser J, Louis JM, Harrison RW, Weber IT, Protein Sci. 2012 Mar;21(3):339-50. doi: 10.1002/pro.2019. Epub 2012 Jan 24. PMID: 22238126

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