Information
Accession GMS-82-3 

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TitlePhoto-responsive DNA condensates
Submit date2025-05-14 12:17:15
Last update date2025-05-14 14:45:32
Contact Masahiro TAKINOUE
masahiro.takinoue AT takinoue-lab.jp
Institute of Science Tokyo
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Total file size41.01 MB
Keywords Synthetic DNA Nanoscale DNA condensate Y-motif DNA linker 
Photo-control DNA fluid DNA DNA nanotechnology DNA droplet 
 Study
Experiment type In vitro experiments for the formation of photo-responsive DNA condensates and their mechanical actions
Summary Photo-reactive DNA condensatres are composed of Y-shaped DNA nanostructures (Y-motif), self-assembled from three azobenzene-modified ssDNAs (listed below). The basic sequences are referenced from Y. Sato et al., Sci. Adv. (2020) (DOI: 10.1126/sciadv.aba3471).

The azo DNA condensates is capable of reversible phase-state changes upon irradiation of UV or visibile light (Vis). UV leads to an increase in the fluidity (gel-to-liquid or gel-to-dispersed state changes); Vis leads to a decrease in the fluidity (disperse-to-liquid).

Thee types of azo sequnces are highlighted: Y_1x7; Y_3x5; Y_2x1x5, in the order of thermostability, wher 'x' refers to the azo insertion site in the SE. When coupled with non-photoresponsive DNA using linker DNA, the resulting condensates show self-collapsing behavior (1x7) and burst-like flow and disassembly–reassembly cycle flow
(3x5, 2x1x5)
Citation(s) H. Udono, S. M. Nomura, M. Takinoue, Nature Communications (accepted, 2025): DOI: 
10.26434/chemrxiv-2022-0n2fm
 Experiment
OrganismOTHERs
Cell (Tissue) not applicable
Protocol The buffer condition is the same as that of Y. Sato et al. (2020). See the Methods section and Supplementary Information in the published article.
Data processing
 Analysis
[1006] no description

OTHERS 
list_of_sequences.pdf (199.83 KB)  
[1007] no description

OTHERS 
native_PAGE.pdf (1.76 MB)  
[1008] no description
MovieS1_UV_induced_gel_to_liquid_phase_transition.mp4 (1.62 MB)  

[1009] no description
MovieS2_Vis_induced_dispersed_to_gel_phase_transition.mp4 (2.70 MB)  

[1010] no description
MovieS3_burst_light.mp4 (4.44 MB)  

[1012] no description
MovieS4_collapse.mp4 (25.50 MB)  

[1011] no description
MovieS5_reversing_lighter.mp4 (4.79 MB)  

 Supplements [download all]
[1006] list_of_sequences.pdf
 no description
 application/pdf 199.83 KB MD5: 1e142047d46a1055c60f8f56ae9dbae2
[1007] native_PAGE.pdf
 no description
 application/pdf 1.76 MB MD5: 46b3cc72464e4a733e126d74e483b44a
[1008] MovieS1_UV_induced_gel_to_liquid_phase_transition.mp4
 no description
 video/mp4 1.62 MB MD5: 6831f7a6f8563871847c12ebffaeeee7
[1009] MovieS2_Vis_induced_dispersed_to_gel_phase_transition.mp4
 no description
 video/mp4 2.70 MB MD5: 6a3bcb2aadd4a704d9574d0a59559d4d
[1010] MovieS3_burst_light.mp4
 no description
 video/mp4 4.44 MB MD5: 9823df6ed5f652de5d586c50cb7551b9
[1012] MovieS4_collapse.mp4
 no description
 video/mp4 25.50 MB MD5: 046437a1d4a15862338633bd7e23fb42
[1011] MovieS5_reversing_lighter.mp4
 no description
 video/mp4 4.79 MB MD5: f8645c03aedeaa6b1a348199339ebc10