Characterisation of ACE2-like Enzyme from Bacillus cereus sp. as an Alternative Treatment for COVID-19 Patients

SARS-CoV-2 infection can lead to downregulation of ACE2, raising pro-inflammatory Angiotensin II levels. Recombinant human ACE2 protein therapy can restore homeostasis but is costly. An alternative is an ACE2-like enzyme with similar effects. The previous research identified a carboxypeptidase prot...

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Main Authors: Alya Sendra Maulida, Novi Arie Anggraeni, Azzania Fibriani
Format: Article
Language:English
Published: Bogor Agricultural University 2024-11-01
Series:Hayati Journal of Biosciences
Online Access:https://journal.ipb.ac.id/index.php/hayati/article/view/57558
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author Alya Sendra Maulida
Novi Arie Anggraeni
Azzania Fibriani
author_facet Alya Sendra Maulida
Novi Arie Anggraeni
Azzania Fibriani
author_sort Alya Sendra Maulida
collection DOAJ
description SARS-CoV-2 infection can lead to downregulation of ACE2, raising pro-inflammatory Angiotensin II levels. Recombinant human ACE2 protein therapy can restore homeostasis but is costly. An alternative is an ACE2-like enzyme with similar effects. The previous research identified a carboxypeptidase protein from Bacillus cereus sp. (rBceCP) as a potential ACE2-like enzyme, but it has not been characterized well. This study characterizes, expresses, and tests the activity of the rBceCP). rBceCP structure and properties were predicted using Prabi and Expasy. The in vitro approach included protein expression optimization, hydrolysis tests, and inhibition tests. In silico analysis revealed the protein is a homodimer with 53.66% α-helix and a molecular weight of 58.99 kDa. The protein is stable, hydrophilic, and has an isoelectric point at pH 4.93, indicating it can be expressed using the E. coli system. Expression of rBceCP showed no significant differences across IPTG concentrations (p-value >0.05). The protein hydrolysis activity of rBceCP was similar to the control, though purified samples had lower activity than crude samples. Inhibition activity in crude and purified samples showed no significant differences (p-value >0.05) and was higher than the control. Thus, rBceCP has potential as an ACE2-like enzyme and a therapeutic candidate for COVID-19.
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publishDate 2024-11-01
publisher Bogor Agricultural University
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spelling doaj-art-e27e83adfc4c463a8b07dbb4204acb112025-08-20T02:23:45ZengBogor Agricultural UniversityHayati Journal of Biosciences1978-30192086-40942024-11-0132110.4308/hjb.32.1.47-54Characterisation of ACE2-like Enzyme from Bacillus cereus sp. as an Alternative Treatment for COVID-19 PatientsAlya Sendra Maulida0Novi Arie Anggraeni1Azzania Fibriani2School of Life Sciences and Technology, Institut Teknologi Bandung (ITB), Bandung 40132, IndonesiaSchool of Life Sciences and Technology, Institut Teknologi Bandung (ITB), Bandung 40132, IndonesiaSchool of Life Sciences and Technology, Institut Teknologi Bandung (ITB), Bandung 40132, Indonesia SARS-CoV-2 infection can lead to downregulation of ACE2, raising pro-inflammatory Angiotensin II levels. Recombinant human ACE2 protein therapy can restore homeostasis but is costly. An alternative is an ACE2-like enzyme with similar effects. The previous research identified a carboxypeptidase protein from Bacillus cereus sp. (rBceCP) as a potential ACE2-like enzyme, but it has not been characterized well. This study characterizes, expresses, and tests the activity of the rBceCP). rBceCP structure and properties were predicted using Prabi and Expasy. The in vitro approach included protein expression optimization, hydrolysis tests, and inhibition tests. In silico analysis revealed the protein is a homodimer with 53.66% α-helix and a molecular weight of 58.99 kDa. The protein is stable, hydrophilic, and has an isoelectric point at pH 4.93, indicating it can be expressed using the E. coli system. Expression of rBceCP showed no significant differences across IPTG concentrations (p-value >0.05). The protein hydrolysis activity of rBceCP was similar to the control, though purified samples had lower activity than crude samples. Inhibition activity in crude and purified samples showed no significant differences (p-value >0.05) and was higher than the control. Thus, rBceCP has potential as an ACE2-like enzyme and a therapeutic candidate for COVID-19. https://journal.ipb.ac.id/index.php/hayati/article/view/57558
spellingShingle Alya Sendra Maulida
Novi Arie Anggraeni
Azzania Fibriani
Characterisation of ACE2-like Enzyme from Bacillus cereus sp. as an Alternative Treatment for COVID-19 Patients
Hayati Journal of Biosciences
title Characterisation of ACE2-like Enzyme from Bacillus cereus sp. as an Alternative Treatment for COVID-19 Patients
title_full Characterisation of ACE2-like Enzyme from Bacillus cereus sp. as an Alternative Treatment for COVID-19 Patients
title_fullStr Characterisation of ACE2-like Enzyme from Bacillus cereus sp. as an Alternative Treatment for COVID-19 Patients
title_full_unstemmed Characterisation of ACE2-like Enzyme from Bacillus cereus sp. as an Alternative Treatment for COVID-19 Patients
title_short Characterisation of ACE2-like Enzyme from Bacillus cereus sp. as an Alternative Treatment for COVID-19 Patients
title_sort characterisation of ace2 like enzyme from bacillus cereus sp as an alternative treatment for covid 19 patients
url https://journal.ipb.ac.id/index.php/hayati/article/view/57558
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AT azzaniafibriani characterisationoface2likeenzymefrombacilluscereusspasanalternativetreatmentforcovid19patients