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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1016/j.plantsci.2018.08.011
|2 doi
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|a pubmed25n0965.xml
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|a (DE-627)NLM289826993
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|a (NLM)30348313
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|a (PII)S0168-9452(18)30535-1
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Podzimek, Tomáš
|e verfasserin
|4 aut
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| 245 |
1 |
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|a N-glycosylation of tomato nuclease TBN1 produced in N. benthamiana and its effect on the enzyme activity
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 06.11.2018
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a Copyright © 2018 Elsevier B.V. All rights reserved.
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|a A unique analysis of an enzyme activity versus structure modification of the tomato nuclease R-TBN1 is presented. R-TBN1, the non-specific nuclease belonging to the S1-P1 nuclease family, was recombinantly produced in N. benthamiana. The native structure is posttranslationally modified by N-glycosylation at three sites. In this work, it was found that this nuclease is modified by high-mannose type N-glycosylation with a certain degree of macro- and microheterogeneity. To monitor the role of N-glycosylation in its activity, hypo- and hyperglycosylated nuclease mutants, R-TBN1 digested by α-mannosidase, and R-TBN1 deglycosylated by PNGase F were prepared. Deglycosylated R-TBN1 and mutant N94D/N112D were virtually inactive. Compared to R-TBN1 wt, both N94D and N112D mutants showed about 60% and 10% of the activity, respectively, while the N186D, D36S, and D36S/E104 N mutants were equally or even more active than R-TBN1 wt. The partial demannosylation of R-TBN1 did not affect the nuclease activity; moreover, a little shift in substrate specificity was observed. The results show two facts: 1) which sites must be occupied by a glycan for the proper folding and stability and 2) how N. benthamiana glycosylates the foreign nuclease. At the same time, the modifications can be interesting in designing the nuclease activity or specificity through its glycosylation
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|a Journal Article
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|a Mass spectrometry
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|a N-glycosylation
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|a Nicotiana benthamiana
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|a Plant non-specific nucleases
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|a Recombinant protein production
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|a ssDNase activity
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| 650 |
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|a Plant Proteins
|2 NLM
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| 650 |
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|a Recombinant Proteins
|2 NLM
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| 650 |
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|a Deoxyribonucleases
|2 NLM
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| 650 |
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|a EC 3.1.-
|2 NLM
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| 700 |
1 |
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|a Přerovská, Tereza
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Šantrůček, Jiří
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kovaľ, Tomáš
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dohnálek, Jan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Matoušek, Jaroslav
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lipovová, Petra
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant science : an international journal of experimental plant biology
|d 1985
|g 276(2018) vom: 03. Nov., Seite 152-161
|w (DE-627)NLM098174193
|x 1873-2259
|7 nnas
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| 773 |
1 |
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|g volume:276
|g year:2018
|g day:03
|g month:11
|g pages:152-161
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| 856 |
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|u http://dx.doi.org/10.1016/j.plantsci.2018.08.011
|3 Volltext
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|d 276
|j 2018
|b 03
|c 11
|h 152-161
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