Ebola virus EBOV (subtype Sudan, strain Gulu) GP-RBD/Glycoprotein Protein (hFc)

Ebola virus EBOV (subtype Sudan, strain Gulu) GP-RBD/Glycoprotein Protein (hFc) is expressed in HEK293 mammalian cells with Fc tag. The predicted molecular weight is 59 kDa and the accession number is A0A0E3KN50.

Ebola virus EBOV (subtype Sudan, strain Gulu) GP-RBD/Glycoprotein Protein (hFc)

パッケージサイズ	在庫状況	単価(税別)
100 μg	約5 days	￥ 161,000

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説明	Ebola virus EBOV (subtype Sudan, strain Gulu) GP-RBD/Glycoprotein Protein (hFc) is expressed in HEK293 mammalian cells with Fc tag. The predicted molecular weight is 59 kDa and the accession number is A0A0E3KN50.

Species	EBOV
Expression Host	HEK293 Cells
Tag	C-Fc
Accession Number	A0A0E3KN50
Construction	A DNA sequence encoding Sudan ebolavirus (strain Gulu) GP (YP_138523.1) (Met1-Asp320) was expressed with the Fc region of Human IgG1 at the C-terminus.
Protein Purity	> 95 % as determined by SDS-PAGE.
分子量	59 kDa (predicted)

Endotoxin	< 1.0 EU/μg of the protein as determined by the LAL method.
Formulation	Lyophilized from a solution filtered through a 0.22 μm filter, containing PBS, pH 7.4. Typically, a mixture containing 5% to 8% trehalose, mannitol, and 0.01% Tween 80 is incorporated as a protective agent before lyophilization.
Reconstitution	A Certificate of Analysis (CoA) containing reconstitution instructions is included with the products. Please refer to the CoA for detailed information.
Stability & Storage	It is recommended to store recombinant proteins at -20°C to -80°C for future use. Lyophilized powders can be stably stored for over 12 months, while liquid products can be stored for 6-12 months at-80℃. For reconstituted proteinsolutions, the solution can be stored at -20°c to -80'c for at least 3 months. Please avoid multiple freeze-thaw cycles and store products in aliquots.
Shipping	In general, Lyophilized powders are shipping with blue ice.
Research Background	The fourth gene of the EBOV genome encodes a 16-kDa envelope-attached glycoprotein (GP) and a 11 kDa secreted glycoprotein (sGP). Both GP and sGP have an identical 295-residue N-terminus, however, they have different C-terminal sequences. Recently, great attention has been paid to GP for vaccines design and entry inhibitors isolation. GP is a class I fusion protein which assembles as trimers on viral surface and plays an important role in virus entry and attachment. Mature GP is a disulfide-linked heterodimer formed by two subunits, GP1 and GP2, which are generated from the proteolytical process of GP precursor (pre-GP) by cellular furin during virus assembly . The GP1 subunit contains a mucin domain and a receptor-binding domain (RBD); the GP2 subunit has a fusion peptide, a helical heptad-repeat (HR) region, a transmembrane (TM) domain, and a 4-residue cytoplasmic tail. The RBD of GP1 mediates the interaction of EBOV with cellular receptor (e.g. DC-SIGN/LSIGN, TIM-1, hMGL, NPC1, β-integrins, folate receptor-α, and Tyro3 family receptors), of which TIM1 and NPC1 are essential for EBOV entry; the mucin domain having N- and O-linked glycans enhances the viral attachment to cellular hMGL, and participates in shielding key neutralization epitopes, which helps the virus evades immune elimination. There are large conformation changes of GP2 during membrane fusion, which enhance the insertion of fusion loop into cellular membrane and facilitate the release of viral nucleocapsid core to cytoplasm.

参考文献

1. Volchkov VE, et al. Processing of the Ebola virus glycoprotein by the proprotein convertase furin. Proc Natl Acad Sci U S A. 1998 May 12;95(10):5762-7. 2. Lee JE, et al. Structure of the Ebola virus glycoprotein bound to an antibody from a human survivor. Nature. 2008 Jul 10;454(7201):177-82. doi: 10.1038/nature07082. 3. Hood CL, et al. Biochemical and structural characterization of cathepsin L-processed Ebola virus glycoprotein: implications for viral entry and immunogenicity. J Virol. 2010 Mar;84(6):2972-82. doi: 10.1128/JVI.02151-09. 4. Cook JD and Lee JE. The secret life of viral entry glycoproteins: moonlighting in immune evasion. PLoS Pathog. 2013 May;9(5):e1003258. doi: 10.1371/journal.ppat.1003258. 5. Miller EH and Chandran K. Filovirus entry into cells - new insights. Curr Opin Virol. 2012 Apr;2(2):206-14. doi: 10.1016/j.coviro.2012.02.015.

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Ebola virus EBOV (subtype Sudan, strain Gulu) GP-RBD/Glycoprotein Protein (hFc)

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