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Species of Origin
Human
Expression system
Escherichia coli
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Affinity Tag
His Tag (C-term)
Buffer
Lyophilized from a 0.2 µm filtered solution of PBS, pH 7.4.
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Purity
>95% as determined by SDS-PAGE analysis.
Molecular weight
The protein has a calculated MW of 20.4 kDa.
The protein migrates as 20 kDa under reducing condition (SDS-PAGE analysis). -
Activity
Measure by its ability to induce IL-8 secretion in human PBMCs. The ED₅₀ for this effect is 1-5 ng/mL.
Endotoxin level
<0.05 EU per 1 µg of the protein by the LAL method.
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Mycoplasma
Not detected
Form
Lyophilized
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Specifications
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Background
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Background
4-1BB ligand (4-1BBL) is a type II transmembrane protein that is part of the tumor necrosis factor (TNF) ligand family. As an inducible co-stimulatory molecule, it presents on several antigen presenting cell (APC) types, including B cells, macrophages and DCs. The interactions between 4-1BB and 4-1BBL trigger pleiotropic effects on the immune response including antigen presenting process, proliferation of CD4 and CD8 positive T-cells, as well as cytokine secretion from T-cells through NFκB, c-Jun, and p38 downstream signal pathways activation.
Therefore, 4-1BB and 4-1BBL are recently used for the immunotherapy of cancer.Synonyms
Tumor necrosis factor ligand superfamily member 9
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Uniprot ID
P41273
Sequence Note
Arg71-Glu254
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Instruction
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Reconstitution
It is recommended to reconstitute the lyophilized protein in sterile H₂O to a concentration not less than 0.5 mg/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.
Shipping
The product is shipped with polar packs. Upon receipt, store it immediately at -20°C or lower for long term storage.
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Stability & Storage
This product is stable after storage at:
- -20°C for 12 months in lyophilized state from date of receipt.
- -20°C or -80°C for 1 month under sterile conditions after reconstitution.
Avoid repeated freeze/thaw cycles.
Manufacturing specifications
LeadGMP® recombinant proteins are manufactured in ISO 13485:2016 and GMP certified facility. The processes include:
- Animal-free reagent and laboratory
- Manufactured and tested under GMP guideline
- Testing and traceability of raw material
- Records of the maintenance and equipment calibration
- Personnel training records
- Batch-to-batch consistency
- Documentation of QA control and process changes
- Manufactured and tested under an ISO 13485:2016 certified quality management system
- Stability monitor of product shelf-life
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Image
![SDS-PAGE analysis of LeadGMP® 4-1BBL, Human]()
SDS-PAGE analysis of LeadGMP® 4-1BBL, Human
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Publication
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Datasheet & Documents
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Disclaimer：For Research Use Only. Not for use in diagnostic or therapeutic procedures.
