HAMAP rule MF_04156
General rule information
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Accession | MF_04156 |
Dates | 26-FEB-2021 (Created)
31-MAR-2021 (Last updated, Version 3) |
Name | HELIC_LOADER_T4 |
Scope(s) |
Viruses Enterobacteria phage T4 |
Template(s) | P13342 (HLOAD_BPT4); [ Recover all ] |
Triggered by |
HAMAP; MF_04156 (Get profile general information and statistics) |
Propagated annotation
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Identifier, protein and gene names
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Identifier | HLOAD |
case <OC:Tequatrovirus> | |
RecName: Full=DNA helicase assembly protein;<br /> AltName: Full=Gene product 59;<br /> Short=Gp59;<br /> AltName: Full=Helicase loader;<br /> AltName: Full=Helicase loading protein; | |
Gene name | Name=59; |
else | |
RecName: Full=DNA helicase assembly protein;<br /> AltName: Full=Helicase loader;<br /> AltName: Full=Helicase loading protein; | |
end case |
Comments
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FUNCTION | DNA helicase loader protein that participates in viral DNA replication, recombination, and repair. At the fork, required for loading of the replicative helicase onto DNA protected by the ssDNA- binding protein. Coordinates simultaneous synthesis of leading- and lagging-strands. |
SUBUNIT | Monomer. Homohexamer; when associated with DNA. Interacts (via C-terminus) with the DnaB-like replicative helicase (via C-terminus); this interaction brings about the rapid assembly of the helicase onto ssDNA. Interacts (via C-terminus) with the single-stranded DNA-binding protein; a ternary complex between the helicase assembly protein, the single-stranded DNA-binding protein and ssDNA is an obligatory intermediate in the helicase loading mechanism. Interacts with the viral DNA polymerase. Binds to single and double-stranded DNA. Part of the replicase complex that includes the DNA polymerase, the polymerase clamp, the clamp loader complex, the single-stranded DNA binding protein (SSB), the primase, the DnaB-like replicative helicase and the helicase assembly factor. |
SIMILARITY | Belongs to the Tequatrovirus DNA helicase assembly protein family. |
Keywords
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Gene Ontology
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GO:0003677; Molecular function:DNA binding |
GO:0039693; Biological process:viral DNA genome replication |
Cross-references
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Pfam | PF08993; T4_Gp59_N; 1; |
Pfam | PF08994; T4_Gp59_C; 1; |
PIRSF | PIRSF004374; Phage-associated_Gp59; 1; |
Features
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Additional information
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Size range | 150-300 amino acids |
Related rules |
None |
Fusion | Nter: None Cter: None |