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-Structure paper
| タイトル | Cryo-EM structure of cyanopodophage Pan3 reveals a modular tail architecture for host recognition. |
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| ジャーナル・号・ページ | Structure, Vol. 34, Issue 2, Page 220-228.e3, Year 2026 |
| 掲載日 | 2026年2月5日 |
著者 | Pu Hou / Jie Zhu / Rong-Cheng Yu / Feng Yang / Kang Du / Jing Li / Wen-Wen Kong / Jie Wang / Yuxing Chen / Cong-Zhao Zhou / Yong-Liang Jiang / ![]() |
| PubMed 要旨 | Cyanophages, which are bacteriophages that specifically infect host cyanobacteria, also utilize the tail to initiate host recognition and adsorption. Owing to the limited structural information on ...Cyanophages, which are bacteriophages that specifically infect host cyanobacteria, also utilize the tail to initiate host recognition and adsorption. Owing to the limited structural information on cyanophages, our understanding of the mechanism by which cyanophages specifically recognize their hosts remains largely unknown. Here, we determined the intact cryoelectron microscopy structure of a freshwater cyanopodophage Pan3, which consists of an icosahedral shell and a short tail comprising four modular components: the dodecameric adaptor, hexameric nozzle, trimeric needle, and six heterohexameric tailspikes. Notably, each tailspike features an SGNH esterase domain fused to a lectin domain, forming a continuous groove complementary to the host lipopolysaccharide. These findings provide insights into the receptor engagement in Podoviridae, and establish a structural framework for cyanophage and host interactions that may guide future antibacterial interventions against harmful blooms. |
リンク | Structure / PubMed:41380677 |
| 手法 | EM (単粒子) / X線回折 |
| 解像度 | 2.6 - 3.5 Å |
| 構造データ | EMDB-65449, PDB-9vye: EMDB-65451, PDB-9vyf: EMDB-65452, PDB-9vyg: EMDB-65453, PDB-9vyh: ![]() PDB-9vzi: |
| 化合物 | ![]() ChemComp-IOD: ![]() ChemComp-GOL: ![]() ChemComp-HOH: |
| 由来 |
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キーワード | VIRUS / Cyanophage / Capsid / Major capsid protein / VIRAL PROTEIN / Portal / Tail / Adaptor / Nozzle / Needle / Tailspike |
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pseudanabaena phage pan3 (ファージ)
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