scholarly journals The ASH1-RELATED3 SET-Domain Protein Controls Cell Division Competence of the Meristem and the Quiescent Center of the Arabidopsis Primary Root

2014 ◽  
Vol 166 (2) ◽  
pp. 632-643 ◽  
Author(s):  
R. Kumpf ◽  
T. Thorstensen ◽  
M. A. Rahman ◽  
J. Heyman ◽  
H. Z. Nenseth ◽  
...  
Keyword(s):  
Cell Division ◽  
Primary Root ◽  
Quiescent Center ◽  
Set Domain ◽  
Domain Protein

scholarly journals Nitrate Induction of Primary Root Growth Requires Cytokinin Signaling in Arabidopsis thaliana

2019 ◽  
Vol 61 (2) ◽  
pp. 342-352 ◽  
Author(s):  
Pamela A Naulin ◽  
Grace I Armijo ◽  
Andrea S Vega ◽  
Karem P Tamayo ◽  
Diana E Gras ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Cell Division ◽  
Root Growth ◽  
Primary Root ◽  
Growth Arrest ◽  
Root Tip ◽  
Wild Type ◽  
Cytokinin Signaling ◽  
Control Growth ◽  
Primary Root Growth

Abstract Nitrate can act as a potent signal to control growth and development in plants. In this study, we show that nitrate is able to stimulate primary root growth via increased meristem activity and cytokinin signaling. Cytokinin perception and biosynthesis mutants displayed shorter roots as compared with wild-type plants when grown with nitrate as the only nitrogen source. Histological analysis of the root tip revealed decreased cell division and elongation in the cytokinin receptor double mutant ahk2/ahk4 as compared with wild-type plants under a sufficient nitrate regime. Interestingly, a nitrate-dependent root growth arrest was observed between days 5 and 6 after sowing. Wild-type plants were able to recover from this growth arrest, while cytokinin signaling or biosynthesis mutants were not. Transcriptome analysis revealed significant changes in gene expression after, but not before, this transition in contrasting genotypes and nitrate regimes. We identified genes involved in both cell division and elongation as potentially important for primary root growth in response to nitrate. Our results provide evidence linking nitrate and cytokinin signaling for the control of primary root growth in Arabidopsis thaliana.

Exploring the origin of the catalytic power and product specificity of SET domain protein methyltransferase

2016 ◽  
Vol 12 (10) ◽  
pp. 2980-2983 ◽  
Author(s):  
A. H. Lima ◽  
C. N. Alves ◽  
R. Prasad ◽  
J. Lameira
Keyword(s):  
Computer Simulation ◽  
Set Domain ◽  
Product Specificity ◽  
Protein Methyltransferase ◽  
Domain Protein ◽  
Catalytic Power

Computer simulation reveals that the origin of SET8 catalytic power is mainly due to electrostatic preorganization.

scholarly journals The SET domain protein Metnase mediates foreign DNA integration and links integration to nonhomologous end-joining repair

2005 ◽  
Vol 102 (50) ◽  
pp. 18075-18080 ◽  
Author(s):  
S.-H. Lee ◽  
M. Oshige ◽  
S. T. Durant ◽  
K. K. Rasila ◽  
E. A. Williamson ◽  
...  
Keyword(s):  
Nonhomologous End Joining ◽  
Set Domain ◽  
End Joining ◽  
Dna Integration ◽  
Foreign Dna ◽  
Domain Protein ◽  
Foreign Dna Integration

scholarly journals Strategy to Target the Substrate Binding site of SET Domain Protein Methyltransferases

2013 ◽  
Vol 53 (3) ◽  
pp. 681-691 ◽  
Author(s):  
Kong T. Nguyen ◽  
Fengling Li ◽  
Gennadiy Poda ◽  
David Smil ◽  
Masoud Vedadi ◽  
...  
Keyword(s):  
Binding Site ◽  
Substrate Binding ◽  
Set Domain ◽  
Substrate Binding Site ◽  
Domain Protein ◽  
Protein Methyltransferases
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