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. 2017 Nov 13;82(24):13563–13571. doi: 10.1021/acs.joc.7b02794

Table 1. Relative Energies (kilocalories per mole) at Optimized QM or QM/MM Geometries.

  SUB-a1 SUB-a2 SUB-b1 SUB-b2
C5–C6/C1–O22 conformation trans/trans cis/trans trans/cis cis/cis
Gas Phase, QM Energy
B3LYP-D3/TZVP 0.0 4.2 3.8 6.8
Enzyme, QM/MM Energy
OM2/CHARMM 0.0 3.7 –13.0 –14.0
DFT(B3LYP-D3/SVP)/CHARMM 0.0 10.3 –10.2 –10.4
DFT(B3LYP-D3/TZVP)/CHARMM 0.0 11.8 –8.4 –8.2