Recombinant Human coronavirus NL63 Envelope small membrane protein(E)

Code CSB-CF764822HIX
Size $3032Purchase it in Cusabio online store
(only available for customers from the US)
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Product Details


The recombinant HCoV-NL63 E protein protein is a cell-free system in vitro E.coli expressed Full Length protein. In cell-free systems, synthesis of the protein can be carried out in vitro using extracts of whole cells that are compatible with translation. These cell extracts contain all the molecules and enzymes that are needed to transcribe, translate, and post-translationally modify the recombinant protein. With additional supplements of cofactors, E protein proteins can be formed in a few hours. However, this system may not be applicable for the large-scale production of recombinant proteins. Advantages of this system include that proteins can be synthesized without cell culturing; also, it is possible to express many proteins together.

The HCoV-NL63 E protein is a small, integral, structural membrane protein found in the lipid envelope of mature virus particles. It functions in various stages of the viral life cycle, such as assembly, budding, envelope formation, and pathogenesis. Absence or inactivation of E protein leads to attenuated viruses because of changes in either virion morphology or tropism. The E protein is abundantly expressed inside the infected cells during the replication cycle, but only a small fraction is integrated into the virion membrane. The majority of the E protein is found in intracellular trafficking sites such as the ER, Golgi, and ERGIC, where it aids in HCoV-NL63 assembly and budding. The E protein also plays an important role in viral production and maturation.

Purity Greater than 85% as determined by SDS-PAGE.
Target Names E
Uniprot No. Q6Q1S0
Research Area Others
Alternative Names E; sM; 4; Envelope small membrane protein; E protein; sM protein
Species Human coronavirus NL63 (HCoV-NL63)
Source in vitro E.coli expression system
Expression Region 1-77aa
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 12.0 kDa
Protein Length Full Length
Tag Info N-terminal 10xHis-tagged
Form Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is 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°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
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 18-23 business days
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA Please contact us to get it.

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Target Background

Plays a central role in virus morphogenesis and assembly. Acts as a viroporin and self-assembles in host membranes forming pentameric protein-lipid pores that allow ion transport. Also plays a role in the induction of apoptosis.
Subcellular Location Host Golgi apparatus membrane; Single-pass type III membrane protein.
Protein Families Alphacoronaviruses E protein family
Database Links

KEGG: vg:2943502


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