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Product Details
Synonyms
Envelope glycoprotein gp41/gp41 (HIV)
Source
HIV-1 (HXB2) GP41 Pre-hairpin intermediate Protein, His Tag (GP1-H51H3) is expressed from E. coli cells. It contains AA Ala 533 - Leu 856 (Accession # P04578).
Predicted N-terminus: Trp
Request for sequenceMolecular Characterization
Other Tags and Version Biotin & Other Labeled Version
This protein carries a polyhistidine tag at the C-terminus.
The protein has a calculated MW of 44.3 kDa. The protein migrates as Band dispersion when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE).
Endotoxin
Less than 1.0 EU per μg by the LAL method / rFC method.
Purity
>85% as determined by SDS-PAGE.
Formulation
This product is not suitable for cell based experiments due to cytotoxicity of DDM.
DDM and CHS are INDISPENSABLE to keep membrane protein soluble and active, under no circumstances should you remove DDM and CHS.
DDM/CHS buffer (DC-11) is sold separately and not included in protein, and please contact us if you need the buffer.
If glycerol is not compatible with your application, remove glycerol just before the immediate experiment, and NEVER store glycerol-free protein solution.Supplied as 0.2 μm filtered solution in 50 mM HEPES, 150 mM NaCl, 0.05% DDM, 0.01% CHS, pH7.5 with glycerol as protectant.
Contact us for customized product form or formulation.
Shipping
This product is supplied and shipped with dry ice, please inquire the shipping cost.
Storage
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- The product MUST be stored at -70°C or lower upon receipt;
- -70°C for 3 months under sterile conditions.
ACRO Quality Management System
- *The DDM/CHS buffer (Cat. No. DC-11) is sold separately and not included in protein, you can follow the link for product information.
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Performance Data
SDS-PAGE
HIV-1 (HXB2) GP41 Pre-hairpin intermediate Protein, His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 85% (With Star Ribbon Pre-stained Protein Marker).
Bioactivity-ELISA
Immobilized HIV-1 (HXB2) GP41 Pre-hairpin intermediate Protein, His Tag (Cat. No. GP1-H51H3) at 1 μg/mL (100 μL/well) can bind Monoclonal Anti-HIV-1 GP41 Antibody, Human IgG1 (2F5) with a linear range of 0.2-16 ng/mL (QC tested).
Protocol
Bioactivity-SPR
Monoclonal Anti-HIV-1 GP41 Antibody, Human IgG1 (2F5) captured on Protein A Chip can bind HIV-1 (HXB2) GP41 Pre-hairpin intermediate Protein, His Tag (Cat. No. GP1-H51H3) with an affinity constant of 0.468 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
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FAQ
- Product
What do “pre” and “post” refer to in the names of viral proteins?
In virology, “pre” refers to the conformation of a viral surface glycoprotein before fusion with the host cell membrane, while “post” refers to the conformation after membrane fusion and entry into the host cell. Both are naturally occurring states in the viral life cycle. Because the “pre” conformation represents a critical stage before viral entry, antibodies designed against this state often exhibit stronger neutralizing activity and are therefore more effective in preventing infection.
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