Recombinant Human SARS coronavirus Replicase polyprotein 1a (1a),partial

Code CSB-YP315160HQE
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Source Yeast
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Code CSB-EP315160HQE
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Source E.coli
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Code CSB-EP315160HQE-B
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP315160HQE
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Source Baculovirus
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Code CSB-MP315160HQE
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Source Mammalian cell
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Product Details

Purity >85% (SDS-PAGE)
Target Names 1a
Uniprot No. P0C6U8
Alternative Names 1a; Replicase polyprotein 1a; pp1a; ORF1a polyprotein) [Cleaved into: Non-structural protein 1; nsp1; Leader protein); Non-structural protein 2; nsp2; p65 homolog); Non-structural protein 3; nsp3; EC 3.4.19.12; EC 3.4.22.69; PL2-PRO; Papain-like proteinase; PL-PRO; SARS coronavirus main proteinase); Non-structural protein 4; nsp4); 3C-like proteinase; 3CL-PRO; 3CLp; EC 3.4.22.-; nsp5); Non-structural protein 6; nsp6); Non-structural protein 7; nsp7); Non-structural protein 8; nsp8); Non-structural protein 9; nsp9); Non-structural protein 10; nsp10; Growth factor-like peptide; GFL); Non-structural protein 11; nsp11)]
Species Human SARS coronavirus (SARS-CoV) (Severe acute respiratory syndrome coronavirus)
Protein Length Partial
Tag Info The following tags are available.
N-terminal His-tagged
Tag-Free
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form Lyophilized powder
Buffer before Lyophilization Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting
and FAQs
Protein FAQs
Storage Condition Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet Please contact us to get it.

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Target Background

Function
(From Uniprot)
The papain-like proteinase (PL-PRO) is responsible for the cleavages located at the N-terminus of replicase polyprotein. In addition, PL-PRO possesses a deubiquitinating/deISGylating activity and processes both 'Lys-48'- and 'Lys-63'-linked polyubiquitin chains from cellular substrates. Antagonizes innate immune induction of type I interferon by blocking the phosphorylation, dimerization and subsequent nuclear translocation of host IRF-3.; FUNCTION
Gene References into Functions
  1. Data indicate cellular E3 ubiquitin ligase ring-finger and CHY zinc-finger domain-containing 1 (RCHY1) as an interacting partner of the viral SARS-unique domain (SUD) and papain-like protease (PL(pro)), and, as a consequence, the involvement of cellular p53 as antagonist of coronaviral replication. PMID: 27519799
  2. Finally, the authors showed that loss of the nsp3-nsp4 interaction eliminated viral replication by using an infectious cDNA clone and replicon system of SARS coronavirus. PMID: 28738245
  3. Report specificity of Lys48-linked di-ubiquitin and deubiquitinating activities of the SARS coronavirus papain-like protease. PMID: 27203180
  4. While the SUD-N and the X domains were found to be dispensable, the SUD-M domain of nsp3 protein was crucial for viral genome replication/transcription. PMID: 26149721
  5. analysis of the architecture of the nsp14-nsp10 complex involved in RNA viral proofreading PMID: 26159422
  6. The data show that SARS coronavirus PLpro also inhibits IRF3 activation at a step after phosphorylation and that this inhibition is dependent on the de-ubiquitination (DUB) activity of PLpro. PMID: 25481026
  7. identification of sites in PLpro required for recognition and processing of diubiquitin and ISG15 provides insight into ubiquitin-chain and ISG15 recognition and highlights role for PLpro DUB and deISGylase activity in antagonism of innate immune response PMID: 24854014
  8. Molecular simulations lead to the conclusion that zwitterion formation is fostered by substrate binding to the catalytic Cys-His dyad of the SARS-CoV main protease. PMID: 25196915
  9. The maturation of the SARS coronavirus polyprotein is influnced by the N- and C-terminal pro-sequences of the 3C-like protease. PMID: 23452147
  10. a new mechanism used by CoVs in which CoV PLPs negatively regulate antiviral defenses by disrupting the STING-mediated IFN induction [PLP] PMID: 22312431
  11. the covalent linkage between the chymotrypsin like and the extra domain is essential for enzymatic activity of the main coronavirus protease and for the integrity of its quaternary structure. PMID: 20587646
  12. We have built a homology model of the SARS polymerase using the 3D jury system; a homology model based on the amino acid sequence can provide some clues concerning the residues critical for its function. PMID: 15326590
  13. cloning, expression, and purification of the N-terminal GST-fused SARS-CoV RNA-dependent RNA polymerase and its catalytic domain in Escherichia coli PMID: 15840516
  14. this is the first report of the interaction between the ORF6 SARS-CoV accessory protein and nsp8 and our findings suggest that ORF6 protein may play a role in virus replication. PMID: 17532020
  15. The membrane topology, processing, and subcellular localization of nsp4 of severe acute respiratory syndrome-associated coronavirus (SARS-CoV) were elucidated in this study. PMID: 17855519
  16. dimerization appears to be coupled to catalysis in 3CLpro through the use of overlapped residues for two networks, one for dimerization and another for the catalysis PMID: 18305031
  17. Together, these data indicate that dimerization of SARS-CoV nsp9 at the GXXXG motif is not critical for RNA binding but is necessary for viral replication. PMID: 19153232
  18. the Ddx5 (Asp-Glu-Ala-Asp box polypeptide 5) protein showed specific interaction with SARS-CoV helicase. PMID: 19224332
  19. crystal structures of fragment 389-652 - SARS-unique domain (SUD)(core) - of Nsp3, which comprises 264 of the 338 residues of the domain; entire SUD(core) as well as individual subdomains interact with oligonucleotides known to form G-quadruplexes PMID: 19436709

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Subcellular Location Non-structural protein 3: Host membrane, Multi-pass membrane protein, SUBCELLULAR LOCATION: Non-structural protein 4: Host membrane, Multi-pass membrane protein, SUBCELLULAR LOCATION: Non-structural protein 6: Host membrane, Multi-pass membrane protein, SUBCELLULAR LOCATION: Non-structural protein 7: Host cytoplasm, host perinuclear region, Note=nsp7, nsp8, nsp9 and nsp10 are localized in cytoplasmic foci, largely perinuclear, Late in infection, they merge into confluent complexes (By similarity), SUBCELLULAR LOCATION: Non-structural protein 8: Host cytoplasm, host perinuclear region, Note=nsp7, nsp8, nsp9 and nsp10 are localized in cytoplasmic foci, largely perinuclear, Late in infection, they merge into confluent complexes (By similarity), SUBCELLULAR LOCATION: Non-structural protein 9: Host cytoplasm, host perinuclear region, Note=nsp7, nsp8, nsp9 and nsp10 are localized in cytoplasmic foci, largely perinuclear, Late in infection, they merge into confluent complexes (By similarity), SUBCELLULAR LOCATION: Non-structural protein 10: Host cytoplasm, host perinuclear region
Protein Families Coronaviruses polyprotein 1ab family

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