HAMAP rule MF_04114
General rule information
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| 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
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Identifier, protein and gene names
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| Identifier | PORTL |
| Protein name | RecName: Full=Portal protein; AltName: Full=gp20; |
Comments
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| FUNCTION | Forms 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. |
| SUBUNIT | Homododecamer. Interacts with the large terminase subunit. Interacts with the major capsid protein. Interacts with the capsid vertex protein. |
| SUBCELLULAR LOCATION | Virion. Note=Located at a unique 5-fold vertex of the icosahedral capsid. |
| SIMILARITY | Belongs to the Tevenvirinae portal protein family. |
Keywords
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Gene Ontology
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| 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
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| Pfam | PF07230; Peptidase_S80; 1; |
Features
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Additional information
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| Size range | 414-631 amino acids |
| Related rules |
None |
| Fusion | Nter: None Cter: None |