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HAMAP rule MF_04087

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General rule information [?]

Accession MF_04087
Dates 8-FEB-2018 (Created)
4-JUN-2021 (Last updated, Version 4)
Scope(s) Viruses
Template(s) O73557 (Z_LASSJ); [ Recover all ]
Triggered by HAMAP; MF_04087 (Get profile general information and statistics)

Propagated annotation [?]

Identifier, protein and gene names [?]

Identifier Z
Protein name RecName: Full=RING finger protein Z;
                 Short=Protein Z;
AltName: Full=Zinc-binding protein;
Gene name Name=Z;

Comments [?]

FUNCTIONPlays a crucial role in virion assembly and budding. Expressed late in the virus life cycle, it acts as an inhibitor of viral transcription and RNA synthesis by interacting with the viral polymerase L. Presumably recruits the NP encapsidated genome to cellular membranes at budding sites via direct interaction with NP. Plays critical roles in the final steps of viral release by interacting with host TSG101, a member of the vacuolar protein-sorting pathway and using other cellular host proteins involved in vesicle formation pathway. The budding of the virus progeny occurs after association of protein Z with the viral glycoprotein complex SSP-GP1-GP2 at the cell periphery, step that requires myristoylation of protein Z. Also selectively represses protein production by associating with host eIF4E.
SUBUNITInteracts with protein NP; this interaction probably directs the encapsidated genome to budding sites. Interacts (via RING domain) with polymerase L; this interaction inhibits viral transcription and replication. Interacts with the glycoprotein complex; this interaction plays a role in virion budding. Interacts with host eIF4E; this interaction results in eIF4E reduced affinity for its substrate, the 5'-m7 G cap structure. Interacts (via late-budding domain) with host TSG101; this interaction is essential for budding and release of viral particles. Interacts with host RPLP0; this interaction may serve to load ribosome-like particles inside the virion. Interacts with host PML; this interaction induces PML bodies redistribution in the cytoplasm upon viral infection.
SUBCELLULAR LOCATIONVirion. Host cytoplasm, host perinuclear region. Host cell membrane; Lipid-anchor; Cytoplasmic side. Note=Mainly perinuclear. During budding, associates at the inner side of the plasma membrane of infected cells.
DOMAINLate-budding domains (L domains) are short sequence motifs essential for viral particle budding. They recruit proteins of the host ESCRT machinery (Endosomal Sorting Complex Required for Transport) or ESCRT-associated proteins.
SIMILARITYBelongs to the arenaviridae Z protein family.

Keywords [?]

Gene Ontology [?]

GO:0044220; Cellular component:host cell perinuclear region of cytoplasm
GO:0020002; Cellular component:host cell plasma membrane
GO:0016020; Cellular component:membrane
GO:0044423; Cellular component:virion component
GO:0003723; Molecular function:RNA binding
GO:0008270; Molecular function:zinc ion binding
GO:0046761; Biological process:viral budding from plasma membrane
GO:0039702; Biological process:viral budding via host ESCRT complex

Cross-references [?]

Pfam PF03854; zf-P11; 1;
PIRSF PIRSF004030; Z_ArenaV; 1;

Features [?]

From: Z_LASSJ (O73557)
Key From To Description Tag Condition FTGroup
INIT_MET 1 1 /note="Removed; by host" M
CHAIN 2 Cter /note="RING finger protein Z"
ZN_FING 31 67 /note="RING-type; atypical" C-x-x-C-x*-C-x-x-C
MOTIF 81 84 /note="PTAP/PSAP motif" P-[TS]-A-P
MOTIF 94 97 /note="PPXY motif" P-P-P-Y
LIPID 2 2 /note="N-myristoyl glycine; by host" G

Additional information [?]

Size range 90-101 amino acids
Related rules None
Fusion Nter: None Cter: None

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