ArticleACS omega2025
Oligolysine Enhances and Inhibits DNA Condensate Formation.
Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Molecular Crowding Stabilizes DNA Coacervate Droplets and Generates Self-Organized Characteristic Patterns.JACS Au · 2026Article
- Cooperation and Competition of Base Pairing and Electrostatic Interactions in Mixtures of DNA Nanostars and Polylysine.Journal of the American Chemical Society · 2025Article
- Peptide Coacervates Can Protect Sequestered Oligonucleotides from Nucleases and Release Them for Transcription and Translation.Biomacromolecules · 2025Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The formation of biomolecular condensates via phase separation relates to various cellular functions. Reconstituting these condensates with designed molecules facilitates the exploration of their mechanisms and potential applications. Sequence-designed DNA nanostructures enable the investigation of how structural design influences condensate formation and the construction of functional artificial condensates. Despite the high designability of DNA-based condensates, free nanostructures that do not assemble into condensates remain a challenge. Combining DNA nanostructures with other molecules, such as peptides, represents a promising approach to overcoming the limitations of DNA condensates and gaining a deeper understanding of molecular condensates. Herein, we report the effects of cationic oligolysines with several residues on DNA condensate formation assembled from Y-shaped DNA nanostructures. DNA condensate formation was enhanced by oligolysines at an appropriate L/P ratio, which refers to the ratio of positively charged amine groups in lysine (L) to negatively charged nucleic acid phosphate groups (P). Oligolysines with five residues enhanced condensate formation while maintaining the sequence-specific interaction of DNA. In contrast, oligolysines inhibited condensate formation depending on the L/P ratio and residue number. This was attributed to nanostructure deformation caused by oligolysines. These results suggest that the amount and length of cationic peptides significantly affect the self-assembly of branched DNA nanostructures. This study offers important insights into biomolecular condensates that can guide further development of DNA/peptide hybrid condensates to enhance the functions of artificial condensates for use in artificial cells and molecular robots.
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Registered trials
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