| Human | PDE4D | 1xom | A | B | CILOMILAST | | |
| Human | PDE4D | 1xom | B | A | CILOMILAST | | |
| Human | PDE4D | 1xom | B | B | CILOMILAST | | |
| Human | PDE4D | 1xon | A | A | 3-(CYCLOPENTYLOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-METHOXYBENZAMIDE | | |
| Human | PDE4D | 1xon | A | B | 3-(CYCLOPENTYLOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-METHOXYBENZAMIDE | | |
| Human | PDE4D | 1xon | B | A | 3-(CYCLOPENTYLOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-METHOXYBENZAMIDE | | |
| Human | PDE4D | 1xon | B | B | 3-(CYCLOPENTYLOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-METHOXYBENZAMIDE | | |
| Human | PDE4D | 1xoq | A | A | 3-(CYCLOPROPYLMETHOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-(DIFLUOROMETHOXY)BENZAMIDE | | |
| Human | PDE4D | 1xoq | A | B | 3-(CYCLOPROPYLMETHOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-(DIFLUOROMETHOXY)BENZAMIDE | | |
| Human | PDE4D | 1xoq | B | A | 3-(CYCLOPROPYLMETHOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-(DIFLUOROMETHOXY)BENZAMIDE | | |
| Human | PDE4D | 1xoq | B | B | 3-(CYCLOPROPYLMETHOXY)-N-(3,5-DICHLOROPYRIDIN-4-YL)-4-(DIFLUOROMETHOXY)BENZAMIDE | | |
| Human | PDE4D | 1xor | A | A | 6-(4-DIFLUOROMETHOXY-3-METHOXY-PHENYL)-2H-PYRIDAZIN-3-ONE | | |
| Human | PDE4D | 1xor | A | B | 6-(4-DIFLUOROMETHOXY-3-METHOXY-PHENYL)-2H-PYRIDAZIN-3-ONE | | |
| Human | PDE4D | 1xor | A | C | 6-(4-DIFLUOROMETHOXY-3-METHOXY-PHENYL)-2H-PYRIDAZIN-3-ONE | | |
| Human | PDE4D | 1xor | B | A | 6-(4-DIFLUOROMETHOXY-3-METHOXY-PHENYL)-2H-PYRIDAZIN-3-ONE | | |
| Human | PDE4D | 1xor | B | B | 6-(4-DIFLUOROMETHOXY-3-METHOXY-PHENYL)-2H-PYRIDAZIN-3-ONE | | |
| Human | PDE4D | 1xor | B | C | 6-(4-DIFLUOROMETHOXY-3-METHOXY-PHENYL)-2H-PYRIDAZIN-3-ONE | | |
| Human | PDE4D | 1y2b | A | A | 3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2b | A | B | 3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2b | B | A | 3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2b | B | B | 3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2c | A | A | 3,5-DIMETHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2c | A | B | 3,5-DIMETHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2c | B | A | 3,5-DIMETHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2c | B | B | 3,5-DIMETHYL-1-PHENYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2d | A | A | 1-(4-METHOXYPHENYL)-3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2d | A | B | 1-(4-METHOXYPHENYL)-3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2d | B | A | 1-(4-METHOXYPHENYL)-3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2d | B | B | 1-(4-METHOXYPHENYL)-3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |
| Human | PDE4D | 1y2e | A | A | 1-(4-AMINOPHENYL)-3,5-DIMETHYL-1H-PYRAZOLE-4-CARBOXYLICACIDETHYLESTER | | |