HAMAP rule MF_04134

General rule information [?]

Accession	MF_04134
Dates	11-JAN-2019 (Created) 1-JUN-2023 (Last updated, Version 6)

Name

GT_LAMBD

Scope

Viruses; Caudoviricetes

Template

O64329 (GT_BPN15)

Triggered by

Propagated annotation [?]

Identifier, protein and gene names [?]

case <Feature:PF06223>

Identifier

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

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 [?]

Gene Ontology [?]

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

Cross-references [?]

Computed features [?]

General

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

Additional information [?]