Research Article

Carborane-Based Carbonic Anhydrase Inhibitors: Insight into CAII/CAIX Specificity from a High-Resolution Crystal Structure, Modeling, and Quantum Chemical Calculations

Table 3

CAII or CAIX residues interacting with 1, 2, and 3.

CAIICAIX
1231

Trp5
Asn62
Asn67
Gln92Gln92Gln92
His94His94His94His94
His96His96His96His96
Glu106
His119His119His119His119
Val121Val121Val121
Phe131Phe131Phe131
Val143Val143
Leu198Leu198Leu198Leu198
Thr199Thr199Thr199Thr199
Thr200Thr200Thr200Thr200
Pro201Pro201
Pro202
Trp209Trp209

Interacting residues were identified from acrystal structure 4Q78 (this work); bcrystal structure 3IGP [34]; ccrystal structure 3PO6 [52]; dcomputational model (this work); eresidues making polar interactions are highlighted in bold.