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TitleStructure and host specificity of bacteriophage Andhra.
Journal, issue, pagesSci Adv, Vol. 8, Issue 48, Page eade0459, Year 2022
Publish dateDec 2, 2022
AuthorsN'Toia C Hawkins / James L Kizziah / Asma Hatoum-Aslan / Terje Dokland /
PubMed Abstract is an opportunistic pathogen of the human skin, often associated with infections of implanted medical devices. Staphylococcal picoviruses are a group of strictly lytic, short-tailed bacteriophages ... is an opportunistic pathogen of the human skin, often associated with infections of implanted medical devices. Staphylococcal picoviruses are a group of strictly lytic, short-tailed bacteriophages with compact genomes that are attractive candidates for therapeutic use. Here, we report the structure of the complete virion of -infecting phage Andhra, determined using high-resolution cryo-electron microscopy, allowing atomic modeling of 11 capsid and tail proteins. The capsid is a = 4 icosahedron containing a unique stabilizing capsid lining protein. The tail includes 12 trimers of a unique receptor binding protein (RBP), a lytic protein that also serves to anchor the RBPs to the tail stem, and a hexameric tail knob that acts as a gatekeeper for DNA ejection. Using structure prediction with AlphaFold, we identified the two proteins that comprise the tail tip heterooctamer. Our findings elucidate critical features for virion assembly, host recognition, and penetration.
External linksSci Adv / PubMed:36449623 / PubMed Central
MethodsEM (single particle)
Resolution3.5 - 4.9 Å
Structure data

28128

8egr

EMDB-28128, PDB-8egr:
Upper tail structure of Staphylococcus phage Andhra
Method: EM (single particle) / Resolution: 3.58 Å

28129

8egs

EMDB-28129, PDB-8egs:
Tail knob structure of Staphylococcus phage Andhra
Method: EM (single particle) / Resolution: 3.92 Å

28130

8egt

EMDB-28130, PDB-8egt:
Capsid structure of Staphylococcus phage Andhra
Method: EM (single particle) / Resolution: 3.5 Å

28176

8ej5

EMDB-28176, PDB-8ej5:
Tail tip structure of Staphylococcus phage Andhra
Method: EM (single particle) / Resolution: 4.9 Å

Source
  • staphylococcus phage andhra (virus)
KeywordsVIRUS / phage tail / portal / receptor-binding protein / phage capsid / HK97-like fold

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