The host perinuclear region is the host cytoplasmic region just around the host nucleus. Note: This location is defined for viral proteins that appear in the perinuclear region of infected host cells
[Replicase polyprotein 1a]: Multifunctional protein involved in the transcription and replication of viral RNAs. Contains the proteinases responsible for the cleavages of the polyprotein. {By
SimilarityUniProtKB:P0C6X7}. [Host translation inhibitor nsp1]: Inhibits host translation by associating with the open head conformation of the 40S subunit (PubMed:33479166, PubMed:33080218, PubMed:32680882, PubMed:32908316). The C-terminus binds to and obstructs ribosomal mRNA entry tunnel (PubMed:33479166, PubMed:33080218, PubMed:32680882, PubMed:32908316). Thereby inhibits antiviral response triggered by innate immunity or interferons (PubMed:33080218, PubMed:32680882, PubMed:32979938). The nsp1-40S ribosome complex further induces an endonucleolytic cleavage near the 5'UTR of host mRNAs, targeting them for degradation (By similarity). Viral mRNAs less susceptible to nsp1-mediated inhibition of translation, because of their 5'-end leader sequence (PubMed:32908316, PubMed:33080218). {By
SimilarityUniProtKB:P0C6X7, Experimental EvidencePubMed:32680882, Experimental EvidencePubMed:32908316, Experimental EvidencePubMed:32979938, Experimental EvidencePubMed:33080218, Experimental EvidencePubMed:33479166}. [Non-structural protein 2]: May play a role in the modulation of host cell survival signaling pathway by interacting with host PHB and PHB2. Indeed, these two proteins play a role in maintaining the functional integrity of the mitochondria and protecting cells from various stresses. {By
SimilarityUniProtKB:P0C6X7}. [Papain-like protease nsp3]: Responsible for the cleavages located at the N-terminus of the replicase polyprotein. Participates together with nsp4 in the assembly of virally-induced cytoplasmic double-membrane vesicles necessary for viral replication (By similarity). Antagonizes innate immune induction of type I interferon by blocking the phosphorylation, dimerization and subsequent nuclear translocation of host IRF3 (PubMed:32733001). Prevents also host NF- kappa-B signaling (By similarity). In addition, PL-PRO possesses a deubiquitinating/deISGylating activity and processes both 'Lys-48'- and 'Lys-63'-linked polyubiquitin chains from cellular substrates (PubMed:32726803). Cleaves preferentially ISG15 from antiviral protein IFIH1 (MDA5), but not DDX58 (RIG-I) (PubMed:33727702). Can play a role in host ADP-ribosylation by ADP-ribose (PubMed:32578982). {By
SimilarityUniProtKB:P0C6X7, Experimental EvidencePubMed:32578982, Experimental EvidencePubMed:32726803, Experimental EvidencePubMed:32733001, Experimental EvidencePubMed:33727702}. [Non-structural protein 4]: Participates in the assembly of virally-induced cytoplasmic double-membrane vesicles necessary for viral replication. {By
SimilarityUniProtKB:P0C6X7}. [3C-like proteinase nsp5]: Cleaves the C-terminus of replicase polyprotein at 11 sites (PubMed:32321856). Recognizes substrates containing the core sequence [ILMVF]-Q-|-[SGACN] (PubMed:32198291, PubMed:32272481). Also able to bind an ADP-ribose- 1''-phosphate (ADRP) (By similarity) (PubMed:32198291, PubMed:32272481). {By
SimilarityUniProtKB:P0C6X7, Experimental EvidencePubMed:32198291, Experimental EvidencePubMed:32272481, ECO:0000269|PubMed:32321856}. [Non-structural protein 6]: Plays a role in the initial induction of autophagosomes from host reticulum endoplasmic (By similarity). Later, limits the expansion of these phagosomes that are no longer able to deliver viral components to lysosomes (By similarity). Binds to host TBK1 without affecting TBK1 phosphorylation; the interaction with TBK1 decreases IRF3 phosphorylation, which leads to reduced IFN-beta production (PubMed:32979938). {By
SimilarityUniProtKB:P0C6X7, Experimental EvidencePubMed:32979938}. [Non-structural protein 7]: Plays a role in viral RNA synthesis (PubMed:32358203, PubMed:32277040, PubMed:32438371, PubMed:32526208). Forms a hexadecamer with nsp8 (8 subunits of each) that may participate in viral replication by acting as a primase. Alternatively, may synthesize substantially longer products than oligonucleotide primers (By similarity). {By
SimilarityUniProtKB:P0C6X7, ECO:0000269|PubMed:32277040, ECO:0000269|PubMed:32358203, ECO:0000269|PubMed:32438371, ECO:0000269|PubMed:32526208}. [Non-structural protein 8]: Plays a role in viral RNA synthesis (PubMed:32358203, PubMed:32277040, PubMed:32438371, PubMed:32526208). Forms a hexadecamer with nsp7 (8 subunits of each) that may participate in viral replication by acting as a primase. Alternatively, may synthesize substantially longer products than oligonucleotide primers (By similarity). Interacts with ribosome signal recognition particle RNA (SRP) (PubMed:33080218). Together with NSP9, suppress protein integration into the cell membrane, thereby disrupting host immune defenses (PubMed:33080218). {By
SimilarityUniProtKB:P0C6X7, ECO:0000269|PubMed:32277040, ECO:0000269|PubMed:32358203, ECO:0000269|PubMed:32438371, ECO:0000269|PubMed:32526208, Experimental EvidencePubMed:33080218}. [Non-structural protein 9]: May participate in viral replication by acting as a ssRNA-binding protein (By similarity). Interacts with ribosome signal recognition particle RNA (SRP) (PubMed:33080218). Together with NSP9, suppress protein integration into the cell membrane, thereby disrupting host immune defenses (PubMed:33080218). {By
SimilarityUniProtKB:P0C6X7, Experimental EvidencePubMed:33080218}. [Non-structural protein 10]: Plays a pivotal role in viral transcription by stimulating both nsp14 3'-5' exoribonuclease and nsp16 2'-O-methyltransferase activities. Therefore plays an essential role in viral mRNAs cap methylation. {By
SimilarityUniProtKB:P0C6X7}.
Endoplasmic reticulum chaperone BiP (EC 3.6.4.10) (78 kDa glucose-regulated protein) (GRP-78) (Binding-immunoglobulin protein) (BiP) (Heat shock protein 70 family protein 5) (HSP70 family protein 5) (Heat shock protein family A member 5) (Immunoglobulin heavy chain-binding protein)
Zinc transporter SLC39A7 (Histidine-rich membrane protein Ke4) (Really interesting new gene 5 protein) (Solute carrier family 39 member 7) (Zrt-, Irt-like protein 7) (ZIP7)
Homocysteine-responsive endoplasmic reticulum-resident ubiquitin-like domain member 1 protein (Methyl methanesulfonate (MMF)-inducible fragment protein 1)
Erlin-2 (Endoplasmic reticulum lipid raft-associated protein 2) (Stomatin-prohibitin-flotillin-HflC/K domain-containing protein 2) (SPFH domain-containing protein 2)