AC   MF_04114;
DC   Protein; auto
TR   HAMAP; MF_04114; -; 1; level=0
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Names: PORTAL_T4
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ID   PORTL
DE   RecName: Full=Portal protein;
DE   AltName: Full=gp20;
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CC   -!- FUNCTION: Forms the portal vertex of the capsid. This portal plays
CC       critical roles in head assembly, genome packaging, neck/tail
CC       attachment, and genome ejection. The portal protein multimerizes as a
CC       single ring-shaped homododecamer arranged around a central channel.
CC       Binds to the terminase subunits to form the packaging machine.
CC   -!- SUBUNIT: Homododecamer. Interacts with the large terminase subunit.
CC       Interacts with the major capsid protein. Interacts with the capsid
CC       vertex protein.
CC   -!- SUBCELLULAR LOCATION: Virion. Note=Located at a unique 5-fold vertex of
CC       the icosahedral capsid.
CC   -!- SIMILARITY: Belongs to the Tevenvirinae portal protein family.
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DR   Pfam; PF07230; Peptidase_S80; 1; trigger=no
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KW   Capsid protein
KW   Viral capsid assembly
KW   Viral contractile tail ejection system
KW   Viral genome ejection through host cell envelope
KW   Viral genome packaging
KW   Viral penetration into host cytoplasm
KW   Viral release from host cell
KW   Virion
KW   Virus entry into host cell
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GO   GO:0019028; C:viral capsid
GO   GO:0099000; P:viral genome ejection through host cell envelope, contractile tail mechanism
GO   GO:0019076; P:viral release from host cell
GO   GO:0019072; P:viral genome packaging
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FT   None
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Size: 414-631;
Related: None;
Template: P13334;
Scope:
 Viruses; Caudoviricetes
Fusion:
 Nter: None
 Cter: None
Duplicate: None
Plasmid: None
Comments: None
XX
# Revision 1.4 2022/08/23
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