Glucosinolate biosynthesis : role of MAM synthase and its perspectives
© 2021 The Author(s)..
Glucosinolates, synthesized by the glucosinolate biosynthesis pathway, are the secondary metabolites used as a defence mechanism in the Brassicaceae plants, including Arabidopsis thaliana. The first committed step in the pathway, catalysed by methylthioalkylmalate (MAM) synthase (EC: 2.3.3.17), is to produce different variants of glucosinolates. Phylogenetic analyses suggest that possibly MAM synthases have been evolved from isopropylmalate synthase (IPMS) by the substitutions of five amino acid residues (L143I, H167L, S216G, N250G and P252G) in the active site of IPMS due to point mutations. Considering the importance of MAM synthase in Brassicaceae plants, Petersen et al. (2019) made an effort to characterise the MAM synthase (15 MAM1 variants) in vitro by single substitution or double substitutions. In their study, the authors have expressed the variants in Escherichia coli and analysed the amino acids in the cultures of E. coli in vivo. Since modifying the MAM synthases by transgenic approaches could increase the resistance of Brassicaceae plants for enhancing the defence effect of glucosinolates and their degraded products; hence, MAM synthases should be characterized in detail in vivo in A. thaliana along with the structural analysis of the enzyme for meaningful impact and for its imminent use in vivo.
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| Medienart: |
E-Artikel |
| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:41 |
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| Enthalten in: |
Bioscience reports - 41(2021), 10 vom: 29. Okt. |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Das, Bidyadhar [VerfasserIn] |
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| Links: |
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| Themen: |
Arabidopsis thaliana |
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| Anmerkungen: |
Date Completed 01.02.2022 Date Revised 01.02.2022 published: Print CommentOn: Biosci Rep. 2019 Jul 2;39(7):. - PMID 31175145 Citation Status MEDLINE |
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| doi: |
10.1042/BSR20211634 |
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| funding: |
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| PPN (Katalog-ID): |
NLM330877720 |
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| 520 | |a Glucosinolates, synthesized by the glucosinolate biosynthesis pathway, are the secondary metabolites used as a defence mechanism in the Brassicaceae plants, including Arabidopsis thaliana. The first committed step in the pathway, catalysed by methylthioalkylmalate (MAM) synthase (EC: 2.3.3.17), is to produce different variants of glucosinolates. Phylogenetic analyses suggest that possibly MAM synthases have been evolved from isopropylmalate synthase (IPMS) by the substitutions of five amino acid residues (L143I, H167L, S216G, N250G and P252G) in the active site of IPMS due to point mutations. Considering the importance of MAM synthase in Brassicaceae plants, Petersen et al. (2019) made an effort to characterise the MAM synthase (15 MAM1 variants) in vitro by single substitution or double substitutions. In their study, the authors have expressed the variants in Escherichia coli and analysed the amino acids in the cultures of E. coli in vivo. Since modifying the MAM synthases by transgenic approaches could increase the resistance of Brassicaceae plants for enhancing the defence effect of glucosinolates and their degraded products; hence, MAM synthases should be characterized in detail in vivo in A. thaliana along with the structural analysis of the enzyme for meaningful impact and for its imminent use in vivo | ||
| 650 | 4 | |a Journal Article | |
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