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. Author manuscript; available in PMC: 2011 Jan 24.
Published in final edited form as: J Am Chem Soc. 2006 Mar 29;128(12):3924–3925. doi: 10.1021/ja058196w

Table 1.

UB3LYP/CHARMM barriers (endothermicities) in kcal/mol at snapX-based optimized geometries (R1/B1 first column, R1/B2 otherwise).

Asp297 R1/B1 R1/B2 R1p/B2 R1’/B2 R1’p/B2 R2/B2 R2s/B2
deprotonated 16.7 (8.3) 16.3 (4.1) 16.9 (4.4) 19.0 (4.6) 19.9 (4.9) 18.8 (4.6) 19.7 (5.0)
protonated 16.9 (10.1) 16.7 (6.1) 16.9 (6.1) 19.3 (6.8) 19.7 (6.9) 18.7 (6.5) 19.1 (6.4)