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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2021
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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) |
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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 |
work_keys_str_mv |
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1718384142280818688 |