Three-dimensional structure of human cyclooxygenase (hCOX)-1

Abstract The beneficial effects of Cyclooxygenases (COX) inhibitors on human health have been known for thousands of years. Nevertheless, COXs, particularly COX-1, have been linked to a plethora of human diseases such as cancer, heart failure, neurological and neurodegenerative diseases only recentl...

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Autores principales: Morena Miciaccia, Benny Danilo Belviso, Mariaclara Iaselli, Gino Cingolani, Savina Ferorelli, Marianna Cappellari, Paola Loguercio Polosa, Maria Grazia Perrone, Rocco Caliandro, Antonio Scilimati
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/e348145f07bc4650920473b1d5b3a4fd
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spelling oai:doaj.org-article:e348145f07bc4650920473b1d5b3a4fd2021-12-02T16:23:22ZThree-dimensional structure of human cyclooxygenase (hCOX)-110.1038/s41598-021-83438-z2045-2322https://doaj.org/article/e348145f07bc4650920473b1d5b3a4fd2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83438-zhttps://doaj.org/toc/2045-2322Abstract The beneficial effects of Cyclooxygenases (COX) inhibitors on human health have been known for thousands of years. Nevertheless, COXs, particularly COX-1, have been linked to a plethora of human diseases such as cancer, heart failure, neurological and neurodegenerative diseases only recently. COXs catalyze the first step in the biosynthesis of prostaglandins (PGs) and are among the most important mediators of inflammation. All published structural work on COX-1 deals with the ovine isoenzyme, which is easier to produce in milligram-quantities than the human enzyme and crystallizes readily. Here, we report the long-sought structure of the human cyclooxygenase-1 (hCOX-1) that we refined to an R/Rfree of 20.82/26.37, at 3.36 Å resolution. hCOX-1 structure provides a detailed picture of the enzyme active site and the residues crucial for inhibitor/substrate binding and catalytic activity. We compared hCOX-1 crystal structure with the ovine COX-1 and human COX-2 structures by using metrics based on Cartesian coordinates, backbone dihedral angles, and solvent accessibility coupled with multivariate methods. Differences and similarities among structures are discussed, with emphasis on the motifs responsible for the diversification of the various enzymes (primary structure, stability, catalytic activity, and specificity). The structure of hCOX-1 represents an essential step towards the development of new and more selective COX-1 inhibitors of enhanced therapeutic potential.Morena MiciacciaBenny Danilo BelvisoMariaclara IaselliGino CingolaniSavina FerorelliMarianna CappellariPaola Loguercio PolosaMaria Grazia PerroneRocco CaliandroAntonio ScilimatiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-18 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Morena Miciaccia
Benny Danilo Belviso
Mariaclara Iaselli
Gino Cingolani
Savina Ferorelli
Marianna Cappellari
Paola Loguercio Polosa
Maria Grazia Perrone
Rocco Caliandro
Antonio Scilimati
Three-dimensional structure of human cyclooxygenase (hCOX)-1
description Abstract The beneficial effects of Cyclooxygenases (COX) inhibitors on human health have been known for thousands of years. Nevertheless, COXs, particularly COX-1, have been linked to a plethora of human diseases such as cancer, heart failure, neurological and neurodegenerative diseases only recently. COXs catalyze the first step in the biosynthesis of prostaglandins (PGs) and are among the most important mediators of inflammation. All published structural work on COX-1 deals with the ovine isoenzyme, which is easier to produce in milligram-quantities than the human enzyme and crystallizes readily. Here, we report the long-sought structure of the human cyclooxygenase-1 (hCOX-1) that we refined to an R/Rfree of 20.82/26.37, at 3.36 Å resolution. hCOX-1 structure provides a detailed picture of the enzyme active site and the residues crucial for inhibitor/substrate binding and catalytic activity. We compared hCOX-1 crystal structure with the ovine COX-1 and human COX-2 structures by using metrics based on Cartesian coordinates, backbone dihedral angles, and solvent accessibility coupled with multivariate methods. Differences and similarities among structures are discussed, with emphasis on the motifs responsible for the diversification of the various enzymes (primary structure, stability, catalytic activity, and specificity). The structure of hCOX-1 represents an essential step towards the development of new and more selective COX-1 inhibitors of enhanced therapeutic potential.
format article
author Morena Miciaccia
Benny Danilo Belviso
Mariaclara Iaselli
Gino Cingolani
Savina Ferorelli
Marianna Cappellari
Paola Loguercio Polosa
Maria Grazia Perrone
Rocco Caliandro
Antonio Scilimati
author_facet Morena Miciaccia
Benny Danilo Belviso
Mariaclara Iaselli
Gino Cingolani
Savina Ferorelli
Marianna Cappellari
Paola Loguercio Polosa
Maria Grazia Perrone
Rocco Caliandro
Antonio Scilimati
author_sort Morena Miciaccia
title Three-dimensional structure of human cyclooxygenase (hCOX)-1
title_short Three-dimensional structure of human cyclooxygenase (hCOX)-1
title_full Three-dimensional structure of human cyclooxygenase (hCOX)-1
title_fullStr Three-dimensional structure of human cyclooxygenase (hCOX)-1
title_full_unstemmed Three-dimensional structure of human cyclooxygenase (hCOX)-1
title_sort three-dimensional structure of human cyclooxygenase (hcox)-1
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/e348145f07bc4650920473b1d5b3a4fd
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