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HAMAP rule MF_04114

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General rule information [?]

Accession MF_04114
Dates 11-OCT-2017 (Created)
1-MAR-2024 (Last updated, Version 5)
Name PORTAL_T4
Scope(s) Viruses
Caudoviricetes
Template(s) P13334 (PORTL_BPT4); [ Recover all ]
Triggered by HAMAP; MF_04114 (Get profile general information and statistics)

Propagated annotation [?]

Identifier, protein and gene names [?]

Identifier PORTL
Protein name RecName: Full=Portal protein;
AltName: Full=gp20;

Comments [?]

FUNCTIONForms the portal vertex of the capsid. This portal plays critical roles in head assembly, genome packaging, neck/tail attachment, and genome ejection. The portal protein multimerizes as a single ring-shaped homododecamer arranged around a central channel. Binds to the terminase subunits to form the packaging machine.
SUBUNITHomododecamer. Interacts with the large terminase subunit. Interacts with the major capsid protein. Interacts with the capsid vertex protein.
SUBCELLULAR LOCATIONVirion. Note=Located at a unique 5-fold vertex of the icosahedral capsid.
SIMILARITYBelongs to the Tevenvirinae portal protein family.

Keywords [?]


Gene Ontology [?]

GO:0019028; Cellular component:viral capsid
GO:0099000; Biological process:symbiont genome ejection through host cell envelope, contractile tail mechanism
GO:0019076; Biological process:viral release from host cell
GO:0019072; Biological process:viral genome packaging

Cross-references [?]

Pfam PF07230; Peptidase_S80; 1;

Features [?]


Additional information [?]

Size range 414-631 amino acids
Related rules None
Fusion Nter: None Cter: None



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