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7534900 
Journal Article 
Investigation of in vitro and in silico effects of some novel carbazole Schiff bases on human carbonic anhydrase isoforms I and II 
Camadan, Y; Cicek, B; Adem, S; Calisir, U; Akkemik, E; , 
2021 
Yes 
Journal of Biomolecular Structure & Dynamics
ISSN: 0739-1102 
TAYLOR & FRANCIS INC 
PHILADELPHIA 
40 
15 
1-10 
English 
33645441 
WOS:000623962400001 
Carbonic anhydrases (CAs, EC4.2.1.1) are metalloenzymes that catalyse reversible hydration reaction of carbon dioxide to bicarbonate and protons. In recent years, there has been a great interest in inhibitors/activators of carbonic anhydrase isoenzymes. Therefore, we investigated the effects of four different carbazole Schiff base derivatives, which are believed to have a potential to be used as a drug, on human carbonic anhydrase (hCA) isoenzymes I and II under in vitro conditions. The IC50 values of carbazole Schiff base derivatives were found to be in the range of 32.09-151.2 mu M for hCA isoenzyme I and 21.82-40.54 mu M for hCA isoenzyme II. Among all compounds, (E)-3-(((9-Octyl-9H-carbazole-3-yl)imino)methyl)benzene-1,2-diol (C3) had the strongest inhibitory effect on hCA isoenzyme II. It was determined that 2,3,4-trimethoxy and 4-hydroxy phenyl containing carbazole compounds have selective inhibition against hCA II isoenzyme. Docking studies were performed against hCA I and II receptors using induced-fit docking method. The compounds had affinity scores varying from -7.74 +/- 0.27 to -6.27 +/- 0.07 kcal/mol for hCA I and from -8.04 +/- 0.17 to -7.27 +/- 0.18 kcal/mol for hCA II.Communicated by Ramaswamy H. Sarma