6OGT:
reference: Single atom changes in newly synthesized HIV protease inhibitors reveal structural basis for extreme affinity, high genetic barrier, and adaptation to the HIV protease plasticity., Bulut H, Hattori SI, Aoki-Ogata H, Hayashi H, Das D, Aoki M, Davis DA, Rao KV, Nyalapatla PR, Ghosh AK, Mitsuya H, Sci Rep. 2020 Jun 30;10(1):10664. doi: 10.1038/s41598-020-65993-z. PMID: 32606378

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