4-1BBL (Human), Recombinant Protein, HEK293, Tag Free

Premium CytoGrow™ growth factor suitable for immunotherapy research, T-cell activation studies, immune checkpoint modulation, and in vitro/in vivo functional assays.

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CytoGrow™ Recombinant 4-1BBL (Human), HEK293, Tag Free

This recombinant protein is a high-purity, biologically active human 4-1BB ligand (4-1BBL, CD137L, TNFSF9) produced in HEK293 cells under optimized conditions. The protein is expressed without any fusion tags, ensuring native structure and functionality for research applications.

Specifications 

Synonym: 
Species:Human
Expression System:HEK293
Endotoxin:≤10 EU/mg
Appearance:White powder, colorless liquid after reconstitution
Formulation Lyophilized from a 0.2 μm filtered solution containing PBS,
5% mannitol, and 0.01% Tween 80
Reconstitution:Recommended to redissolve in sterile deionized water
Shipping:Shipped with ice pack
Storage and Stability:Store in a manual defrost freezer and avoid repeated freeze-thaw cycles.

Lyophilized state:
36 months at -20°C to -80°C

After reconstitution and under sterile conditions:
6 months at -20°C to -80°C
7-10 days at 2°C to 8°C

Resources


Booklet – CytoGrow Growth Factors

Product Data Sheet

Material Safety Data Sheet (MSDS)

Frequently Asked Questions 

Data and Bioactivity

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Size

1 μg, 10 µg, 50 μg, 1 mg, 10 mg, 100 mg, 1 g, 1 mL, 10 mL