Immobilization of ArRMut11 omega-transaminase for increased operational stability and reusability in the synthesis of 3α-amino-5α-androstan-17β-ol
Authors
Kaličanin, NevenaKovačević, Gordana
Spasojević, Milica
Prodanović, Olivera
Jovanović-Šanta, Suzana
Škorić, Dušan
Opsenica, Dejan
Prodanović, Radivoje
Article (Accepted Version)
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The aim of this research was to improve the operational stability and enable the reusability of ω-transaminase for synthesis of new enantiopure chiral amines of steroids. Dihydrotestosterone was used to optimize the synthetic procedure of corresponding amino-steroid on a larger scale. The obtained product 3α-amino-5α-androstan-17β-ol was isolated and characterized. The enzyme was immobilized on a methacrylate-based carrier, giving the specific activity of 1.84 U/g of dry polymer. Higher residual activity of the immobilized enzyme in comparison to the soluble form (100 % versus 35%) after 24 h incubation in 35 % dimethylformamide (DMF) was obtained. The soluble enzyme retained 19 % of the initial activity after 2 h incubation in 35 % DMF at 70 °C, while the activity of the immobilized enzyme decreased only to 75 %. Immobilized retained 85 % of initial activity after ten consecutive cycles of 3α-amino-5α-androstan-17β-ol synthesis. We have tested the specificity of the ArRMut11 variant, ...further increased its stability by immobilization, and used it in several cycles for the synthesis of 3α-amino-5α-androstan-17β-ol. We showed that the enzyme previously evolved for higher stability as the immobilized variant showed more increased stability and high reusability that can more effectively be applied for the biosynthesis of amino steroids.
Keywords:
Biocatalysts / Dihydrotestosterone / Immobilization / Macroporous / SteroidSource:
Process Biochemistry, 2022, 121, 674-680Publisher:
- Elsevier
Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200288 (Innovation Center of the Faculty of Chemistry) (RS-200288)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200053 (University of Belgrade, Institute for Multidisciplinary Research) (RS-200053)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200168 (University of Belgrade, Faculty of Chemistry) (RS-200168)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-200026)
Note:
- This is the peer-reviewed version of the article: Nevena Kaličanin, Gordana Kovačević, Milica Spasojević, Olivera Prodanović, Suzana Jovanović-Šanta, Dušan Škorić, Dejan Opsenica and Radivoje Prodanović, Immobilization of ArRMut11 omegatransaminase for increased operational stability and reusability in the synthesis of 3α-amino-5α-androstan-17β-ol, Process Biochemistry, (2022) 121, 674-680 doi:https://doi.org/10.1016/j.procbio.2022.08.016
- Published version: https://cer.ihtm.bg.ac.rs/handle/123456789/5370
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https://doi.org/10.1016/j.procbio.2022.08.016
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IHTMTY - JOUR AU - Kaličanin, Nevena AU - Kovačević, Gordana AU - Spasojević, Milica AU - Prodanović, Olivera AU - Jovanović-Šanta, Suzana AU - Škorić, Dušan AU - Opsenica, Dejan AU - Prodanović, Radivoje PY - 2022 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/5545 AB - The aim of this research was to improve the operational stability and enable the reusability of ω-transaminase for synthesis of new enantiopure chiral amines of steroids. Dihydrotestosterone was used to optimize the synthetic procedure of corresponding amino-steroid on a larger scale. The obtained product 3α-amino-5α-androstan-17β-ol was isolated and characterized. The enzyme was immobilized on a methacrylate-based carrier, giving the specific activity of 1.84 U/g of dry polymer. Higher residual activity of the immobilized enzyme in comparison to the soluble form (100 % versus 35%) after 24 h incubation in 35 % dimethylformamide (DMF) was obtained. The soluble enzyme retained 19 % of the initial activity after 2 h incubation in 35 % DMF at 70 °C, while the activity of the immobilized enzyme decreased only to 75 %. Immobilized retained 85 % of initial activity after ten consecutive cycles of 3α-amino-5α-androstan-17β-ol synthesis. We have tested the specificity of the ArRMut11 variant, further increased its stability by immobilization, and used it in several cycles for the synthesis of 3α-amino-5α-androstan-17β-ol. We showed that the enzyme previously evolved for higher stability as the immobilized variant showed more increased stability and high reusability that can more effectively be applied for the biosynthesis of amino steroids. PB - Elsevier T2 - Process Biochemistry T1 - Immobilization of ArRMut11 omega-transaminase for increased operational stability and reusability in the synthesis of 3α-amino-5α-androstan-17β-ol VL - 121 SP - 674 EP - 680 DO - 10.1016/j.procbio.2022.08.016 ER -
@article{ author = "Kaličanin, Nevena and Kovačević, Gordana and Spasojević, Milica and Prodanović, Olivera and Jovanović-Šanta, Suzana and Škorić, Dušan and Opsenica, Dejan and Prodanović, Radivoje", year = "2022", abstract = "The aim of this research was to improve the operational stability and enable the reusability of ω-transaminase for synthesis of new enantiopure chiral amines of steroids. Dihydrotestosterone was used to optimize the synthetic procedure of corresponding amino-steroid on a larger scale. The obtained product 3α-amino-5α-androstan-17β-ol was isolated and characterized. The enzyme was immobilized on a methacrylate-based carrier, giving the specific activity of 1.84 U/g of dry polymer. Higher residual activity of the immobilized enzyme in comparison to the soluble form (100 % versus 35%) after 24 h incubation in 35 % dimethylformamide (DMF) was obtained. The soluble enzyme retained 19 % of the initial activity after 2 h incubation in 35 % DMF at 70 °C, while the activity of the immobilized enzyme decreased only to 75 %. Immobilized retained 85 % of initial activity after ten consecutive cycles of 3α-amino-5α-androstan-17β-ol synthesis. We have tested the specificity of the ArRMut11 variant, further increased its stability by immobilization, and used it in several cycles for the synthesis of 3α-amino-5α-androstan-17β-ol. We showed that the enzyme previously evolved for higher stability as the immobilized variant showed more increased stability and high reusability that can more effectively be applied for the biosynthesis of amino steroids.", publisher = "Elsevier", journal = "Process Biochemistry", title = "Immobilization of ArRMut11 omega-transaminase for increased operational stability and reusability in the synthesis of 3α-amino-5α-androstan-17β-ol", volume = "121", pages = "674-680", doi = "10.1016/j.procbio.2022.08.016" }
Kaličanin, N., Kovačević, G., Spasojević, M., Prodanović, O., Jovanović-Šanta, S., Škorić, D., Opsenica, D.,& Prodanović, R.. (2022). Immobilization of ArRMut11 omega-transaminase for increased operational stability and reusability in the synthesis of 3α-amino-5α-androstan-17β-ol. in Process Biochemistry Elsevier., 121, 674-680. https://doi.org/10.1016/j.procbio.2022.08.016
Kaličanin N, Kovačević G, Spasojević M, Prodanović O, Jovanović-Šanta S, Škorić D, Opsenica D, Prodanović R. Immobilization of ArRMut11 omega-transaminase for increased operational stability and reusability in the synthesis of 3α-amino-5α-androstan-17β-ol. in Process Biochemistry. 2022;121:674-680. doi:10.1016/j.procbio.2022.08.016 .
Kaličanin, Nevena, Kovačević, Gordana, Spasojević, Milica, Prodanović, Olivera, Jovanović-Šanta, Suzana, Škorić, Dušan, Opsenica, Dejan, Prodanović, Radivoje, "Immobilization of ArRMut11 omega-transaminase for increased operational stability and reusability in the synthesis of 3α-amino-5α-androstan-17β-ol" in Process Biochemistry, 121 (2022):674-680, https://doi.org/10.1016/j.procbio.2022.08.016 . .