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Structure paper

TitleStructure of an F-type phage tail-like bacteriocin from Listeria monocytogenes.
Journal, issue, pagesNat Commun, Vol. 16, Issue 1, Page 1695, Year 2025
Publish dateFeb 16, 2025
AuthorsZhiwei Gu / Xiaofei Ge / Jiawei Wang /
PubMed AbstractF-type phage tail-like bacteriocins (PTLBs) are high-molecular-weight protein complexes exhibiting bactericidal activity and share evolutionary similarities with the tails of non-contractile ...F-type phage tail-like bacteriocins (PTLBs) are high-molecular-weight protein complexes exhibiting bactericidal activity and share evolutionary similarities with the tails of non-contractile siphoviruses. In this study, we present the atomic structure of monocin, a genetically engineered F-type PTLB from Listeria monocytogenes. Our detailed atomic-level analysis, excluding two chaperone proteins, provides crucial insights into the molecular architecture of F-type PTLBs. The core structure of monocin resembles TP901-1-like phage tails, featuring three side fibers with receptor-binding domains that connect to the baseplate for host adhesion. Based on these findings, we propose a potential mechanism by which F-type PTLBs induce cell death, offering a foundation for developing targeted antibacterial therapies.
External linksNat Commun / PubMed:39956822 / PubMed Central
MethodsEM (single particle)
Resolution2.88 - 3.42 Å
Structure data

61073

9j1j

EMDB-61073, PDB-9j1j:
Cap region of monocin
Method: EM (single particle) / Resolution: 3.42 Å

61074

9j1k

EMDB-61074, PDB-9j1k:
Tip region of monocin
Method: EM (single particle) / Resolution: 2.88 Å

61075

9j1l

EMDB-61075, PDB-9j1l:
Side fiber of monocin
Method: EM (single particle) / Resolution: 3.28 Å

Chemicals

ChemComp-FE:
Unknown entry

Source
  • listeria monocytogenes (bacteria)
KeywordsVIRUS LIKE PARTICLE / Bacteriocin / bacteriophage / Siphoviridae / F-type tailocin / phage tail-like bacteriocins / Listeria monocytogenes / monocin / cryo-EM

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