Functional Divergence of Microtubule-Associated TPX2 Family Members in Arabidopsis thaliana
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73603317" target="_blank" >RIV/61989592:15310/20:73603317 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/1422-0067/21/6/2183/htm" target="_blank" >https://www.mdpi.com/1422-0067/21/6/2183/htm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ijms21062183" target="_blank" >10.3390/ijms21062183</a>
Alternative languages
Result language
angličtina
Original language name
Functional Divergence of Microtubule-Associated TPX2 Family Members in Arabidopsis thaliana
Original language description
TPX2 (Targeting Protein for Xklp2) is an evolutionary conserved microtubule-associated protein important for microtubule nucleation and mitotic spindle assembly. The protein was described as an activator of the mitotic kinase Aurora A in humans and the Arabidopsis AURORA1 (AUR1) kinase. In contrast to animal genomes that encode only one TPX2 gene, higher plant genomes encode a family with several TPX2-LIKE gene members (TPXL). TPXL genes of Arabidopsis can be divided into two groups. Group A proteins (TPXL2, 3, 4, and 8) contain Aurora binding and TPX2_importin domains, while group B proteins (TPXL1, 5, 6, and 7) harbor an Xklp2 domain. Canonical TPX2 contains all the above-mentioned domains. We confirmed using in vitro kinase assays that the group A proteins contain a functional Aurora kinase binding domain. Transient expression of Arabidopsis TPX2-like proteins in Nicotiana benthamiana revealed preferential localization to microtubules and nuclei. Co-expression of AUR1 together with TPX2-like proteins changed the localization of AUR1, indicating that these proteins serve as targeting factors for Aurora kinases. Taken together, we visualize the various localizations of the TPX2-LIKE family in Arabidopsis as a proxy to their functional divergence and provide evidence of their role in the targeted regulation of AUR1 kinase activity.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10608 - Biochemistry and molecular biology
Result continuities
Project
<a href="/en/project/EF16_019%2F0000827" target="_blank" >EF16_019/0000827: Plants as a tool for sustainable global development</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN
1422-0067
e-ISSN
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Volume of the periodical
21
Issue of the periodical within the volume
6
Country of publishing house
CH - SWITZERLAND
Number of pages
16
Pages from-to
"2183-1"-"2183-16"
UT code for WoS article
000529890200279
EID of the result in the Scopus database
2-s2.0-85082523465