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Annotation rule MF_04134
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General rule information [?]

Accession MF_04134
Dates 11-JAN-2019 (Created)
20-NOV-2019 (Last updated, Version 4)
Name GT_LAMBD
Scope
Viruses; Caudovirales
Template O64329 (GT_BPN15)
Triggered by

Propagated annotation [?]


Identifier, protein and gene names [?]

case <Feature:PF06223>
Identifier
GT
Protein name
RecName: Full=Tail assembly protein GT;
AltName: Full=Gene product 15;
Short=gp15;
AltName: Full=Gene product GT;
Short=gpGT;
AltName: Full=Minor tail protein GT;
else
Identifier
G
Protein name
RecName: Full=Tail assembly protein G;
AltName: Full=Gene product G;
Short=gpG;
AltName: Full=Minor tail protein G;
AltName: Full=Tail assembly chaperone;
Short=TAC;
end case

Comments [?]

Function Promotes tail assembly by creating a scaffold for the tail tube proteins. Tail assembly proteins G and GT probably wrap the linear tape measure protein to create a tail assembly scaffold. This allows the polymerization of the tail tube protein, during which G and GT are released, therefore they are absent in the mature virion. The tail assembly protein GT is produced by a rare -1 ribosomal frameshift. The ratio of translated G/GT is about 20, and this ratio is important for proper tail assembly.
Subcellular location Host cytoplasm.
Similarity Belongs to the lambda-like tail assembly protein family.
case <Feature:PF06223>
Subunit Interacts (via C-terminus) with tail tube protein. Interacts (via N-terminus) with the tail assembly protein G and the tape measure protein.
else
Subunit Interacts with the tail assembly protein GT and tape measure protein.
end case

Keywords [?]

Host cytoplasm
Late protein
Viral release from host cell
Viral tail assembly

Gene Ontology [?]

GO:0030430; Cellular component: host cell cytoplasm.
GO:0098003; Biological process: viral tail assembly.

Cross-references [?]

Pfam PF06894; Phage_TAC_2; 1;
PF06223; Phage_tail_T; 0-1;
TIGRFAMs TIGR01715; phage_lam_T; 0-1;
TIGR01674; phage_lambda_G; 1;

Computed features [?]

General Coiled_coil; -; 0-unlimited; trigger=yes;

Additional information [?]

Size range 90-279 amino acids
Related rules None
Fusion None


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