What does this research mean for the field?

Cyanophages can adopt distinct DNA recognition strategies through their terminase small subunit TerS, utilizing either HTH-mediated sequence-dependent or sequence-independent modes. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to investigate the molecular mechanisms by which TerS recognizes DNA in cyanophages.

March 8, 2026Acta Biochimica et Biophysica SinicaOpen Access

Structural and functional insights into the distinct DNA recognition mechanisms of the terminase small subunit TerS from cyanophages

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Authors

DDDe-Qin Dong FYFeng Yang KDKang Du

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Implication

This research reveals distinct DNA recognition strategies in cyanophages, highlighting evolutionary mechanisms.

Key Points

The study aims to investigate the molecular mechanisms by which TerS recognizes DNA in cyanophages.
Utilized cryo-electron microscopy to determine the structure of TerS from cyanophage Pam5.
Conducted biochemical assays to examine DNA binding strategies of TerS.
Compared DNA recognition methods between two cyanophage TerS proteins.
Cryo-electron microscopy revealed a nonameric ring structure of Pam5 TerS.
Pam5 TerS specifically recognizes a 21-bp DNA sequence via its N-terminal helix-turn-helix domain.
Pam1 TerS was found to bind DNA in a sequence-independent manner, indicating distinct recognition strategies.

Cite This Study

Dong et al. (2026) studied this question.

synapsesocial.com/papers/69ada873bc08abd80d5bb5f2 https://doi.org/10.3724/abbs.2026042

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Structural and functional insights into the distinct DNA recognition mechanisms of the terminase small subunit TerS from cyanophages

Discussion

Member takes

Implication

Key Points

Cite This Study

Structural and functional insights into the distinct DNA recognition mechanisms of the terminase small subunit TerS from cyanophages

Discussion

Member takes

Implication

Key Points

Cite This Study

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