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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erz369
|2 doi
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|a pubmed25n1005.xml
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|a (DE-627)NLM301671265
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|a (NLM)31559423
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Park, Sungjin
|e verfasserin
|4 aut
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|a A mutation in the catalytic domain of cellulose synthase 6 halts its transport to the Golgi apparatus
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 10.08.2020
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|a Date Revised 10.08.2020
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2019. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Cellulose microfibrils, which form the mechanical framework of the plant cell wall, are synthesized by the cellulose synthase complex in the plasma membrane. Here, we introduced point mutations into the catalytic domain of cellulose synthase 6 (CESA6) in Arabidopsis to produce enhanced yellow fluorescent protein (EYFP)-tagged CESA6D395N, CESA6Q823E, and CESA6D395N+Q823E, which were exogenously produced in a cesa6 null mutant, prc1-1. Comparison of these mutants in terms of plant phenotype, cellulose content, cellulose synthase complex dynamics, and organization of cellulose microfibrils showed that prc1-1 expressing EYFP:CESA6D395N or CESA6D395N+Q823E was nearly the same as prc1-1, whereas prc1-1 expressing EYFP:CESA6Q823E was almost identical to wild type and prc1-1 expressing EYFP:WT CESA6, indicating that CESA6D395N and CESA6D395N+Q823E do not function in cellulose synthesis, while CESA6Q823E is still functionally active. Total internal reflection fluorescence microscopy and confocal microscopy were used to monitor the subcellular localization of these proteins. We found that EYFP:CESA6D395N and EYFP:CESA6D395N+Q823E were absent from subcellular regions containing the Golgi and the plasma membrane, and they appeared to be retained in the endoplasmic reticulum. By contrast, EYFP:CESA6Q823E had a normal localization pattern, like that of wild-type EYFP:CESA6. Our results demonstrate that the D395N mutation in CESA6 interrupts its normal transport to the Golgi and its eventual participation in cellulose synthase complex assembly
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a cesa6 mutants
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|a Arabidopsis
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|a Golgi transport
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|a catalytic domain
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|a cellulose synthase 6 mutant
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|a cellulose synthase complex assembly
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|a endoplasmic reticulum
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|a Arabidopsis Proteins
|2 NLM
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|a Mutant Proteins
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|a Cellulose
|2 NLM
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|a 9004-34-6
|2 NLM
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|a Glucosyltransferases
|2 NLM
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|a EC 2.4.1.-
|2 NLM
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|a PRC1 protein, Arabidopsis
|2 NLM
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| 650 |
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|a EC 2.4.1.-
|2 NLM
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| 700 |
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|a Song, Bo
|e verfasserin
|4 aut
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|a Shen, Wei
|e verfasserin
|4 aut
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| 700 |
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|a Ding, Shi-You
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 70(2019), 21 vom: 18. Nov., Seite 6071-6083
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
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|g volume:70
|g year:2019
|g number:21
|g day:18
|g month:11
|g pages:6071-6083
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|u http://dx.doi.org/10.1093/jxb/erz369
|3 Volltext
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|d 70
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|e 21
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|h 6071-6083
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