Mechanistic Explanation of the Weak Carbonic Anhydrase’s Esterase Activity

In order to elucidate the elementary mechanism of the promiscuous esterase activity of human carbonic anhydrase (h-CA), we present an accurate theoretical investigation on the hydrolysis of fully-acetylated d-glucose functionalized as sulfamate. This h-CA’s inhibitor is of potential relevance in can...

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Main Authors: Paolo Piazzetta, Tiziana Marino, Nino Russo
Format: Article
Language:English
Published: MDPI AG 2017-06-01
Series:Molecules
Subjects:
Online Access:http://www.mdpi.com/1420-3049/22/6/1009
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author Paolo Piazzetta
Tiziana Marino
Nino Russo
author_facet Paolo Piazzetta
Tiziana Marino
Nino Russo
author_sort Paolo Piazzetta
collection DOAJ
description In order to elucidate the elementary mechanism of the promiscuous esterase activity of human carbonic anhydrase (h-CA), we present an accurate theoretical investigation on the hydrolysis of fully-acetylated d-glucose functionalized as sulfamate. This h-CA’s inhibitor is of potential relevance in cancer therapy. The study has been performed within the framework of three-layer ONIOM (QM-high:QM’-medium:MM-low) hybrid approach. The computations revealed that the hydrolysis process is not energetically favored, in agreement with the observed weak carbonic anhydrase’s esterase activity.
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spelling doaj.art-20b18d95c58545a3b446a00f0f22c27d2022-12-22T03:23:47ZengMDPI AGMolecules1420-30492017-06-01226100910.3390/molecules22061009molecules22061009Mechanistic Explanation of the Weak Carbonic Anhydrase’s Esterase ActivityPaolo Piazzetta0Tiziana Marino1Nino Russo2Dipartimento di Chimica e Tecnologie Chimiche (CTC), Università della Calabria, 87036 Arcavacata di Rende (CS), ItalyDipartimento di Chimica e Tecnologie Chimiche (CTC), Università della Calabria, 87036 Arcavacata di Rende (CS), ItalyDipartimento di Chimica e Tecnologie Chimiche (CTC), Università della Calabria, 87036 Arcavacata di Rende (CS), ItalyIn order to elucidate the elementary mechanism of the promiscuous esterase activity of human carbonic anhydrase (h-CA), we present an accurate theoretical investigation on the hydrolysis of fully-acetylated d-glucose functionalized as sulfamate. This h-CA’s inhibitor is of potential relevance in cancer therapy. The study has been performed within the framework of three-layer ONIOM (QM-high:QM’-medium:MM-low) hybrid approach. The computations revealed that the hydrolysis process is not energetically favored, in agreement with the observed weak carbonic anhydrase’s esterase activity.http://www.mdpi.com/1420-3049/22/6/1009carbonic anhydraseDFTenzyme promiscuityenzyme inhibitors
spellingShingle Paolo Piazzetta
Tiziana Marino
Nino Russo
Mechanistic Explanation of the Weak Carbonic Anhydrase’s Esterase Activity
Molecules
carbonic anhydrase
DFT
enzyme promiscuity
enzyme inhibitors
title Mechanistic Explanation of the Weak Carbonic Anhydrase’s Esterase Activity
title_full Mechanistic Explanation of the Weak Carbonic Anhydrase’s Esterase Activity
title_fullStr Mechanistic Explanation of the Weak Carbonic Anhydrase’s Esterase Activity
title_full_unstemmed Mechanistic Explanation of the Weak Carbonic Anhydrase’s Esterase Activity
title_short Mechanistic Explanation of the Weak Carbonic Anhydrase’s Esterase Activity
title_sort mechanistic explanation of the weak carbonic anhydrase s esterase activity
topic carbonic anhydrase
DFT
enzyme promiscuity
enzyme inhibitors
url http://www.mdpi.com/1420-3049/22/6/1009
work_keys_str_mv AT paolopiazzetta mechanisticexplanationoftheweakcarbonicanhydrasesesteraseactivity
AT tizianamarino mechanisticexplanationoftheweakcarbonicanhydrasesesteraseactivity
AT ninorusso mechanisticexplanationoftheweakcarbonicanhydrasesesteraseactivity