膜杰作
Star Staining
分子别名（Synonym）
RANKL,CD254,TRANCE,OPGL,ODF
表达区间及表达系统（Source）
Human TNFSF11 Protein, His Tag (RAL-H5240) is expressed from human 293 cells (HEK293). It contains AA Gly 64 - Asp 245 (Accession # AAC51762.1).
Predicted N-terminus: His
Request for sequence
蛋白结构（Molecular Characterization）
This protein carries a polyhistidine tag at the N-terminus
The protein has a calculated MW of 22.4 kDa. The protein migrates as 27-35 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
纯度（Purity）
>90% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（Reconstitution）
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储（Storage）
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
电泳（SDS-PAGE）
Human TNFSF11 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 90%.
SEC-MALS
The purity of Human TNFSF11 Protein, His Tag (Cat. No. RAL-H5240) is more than 85% and the molecular weight of this protein is around 80-100 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Human RANK Protein, Mouse IgG2a Fc Tag (Cat. No. RAK-H5251) at 0.5 μg/mL (100 μL/well) can bind Human TNFSF11 Protein, His Tag (Cat. No. RAL-H5240) with a linear range of 0.4-6 ng/mL (QC tested).
Protocol
Immobilized Human OPG, Fc Tag (Cat. No. TNB-H5259) at 2 μg/mL (100 μL/well) can bind Human TNFSF11 Protein, His Tag (Cat. No. RAL-H5240) with a linear range of 0.2-2 ng/mL (Routinely tested).
Protocol
活性（Bioactivity）-SPR
Anti-TNFSF11 (human IgG1) captured on CM5 chip via Anti-human IgG Fc antibodies surface can bind Human TNFSF11 Protein, His Tag (Cat. No. RAL-H5240) with an affinity constant of 0.274 nM as determined in a SPR assay (Biacore T200) (Routinely tested).
Protocol
Captured Human RANK Protein, Mouse IgG2a Fc Tag (Cat. No. RAK-H5251) on CM5 chip via Anti-Mouse antibodies surface can bind Human TNFSF11 Protein, His Tag (Cat. No. RAL-H5240) with an affinity constant of 0.309 nM as determined in a SPR assay (Biacore T200) (Routinely tested).
Protocol
活性（Bioactivity）-BLI
Loaded Human RANK Protein, Mouse IgG2a Fc Tag (Cat. No. RAK-H5251) on AMC Biosensor, can bind Human TNFSF11 Protein, His Tag (Cat. No. RAL-H5240) with an affinity constant of 0.409 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
Loaded Anti-TNFSF11 MAb (human IgG1) on AHC Biosensor, can bind Human TNFSF11 Protein, His Tag (Cat. No. RAL-H5240) with an affinity constant of 0.239 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Protocol
背景（Background）
Receptor activator of nuclear factor kappa-B ligand (RANKL), also known as tumor necrosis factor ligand superfamily member 11 (TNFSF11), TNF-related activation-induced cytokine (TRANCE), osteoprotegerin ligand (OPGL), and osteoclast differentiation factor (ODF), is known as a type II membrane protein and is a member of the tumor necrosis factor (TNF) superfamily. RANKL, through its ability to stimulate osteoclast formation and activity, is a critical mediator of bone resorption and overall bone density. Some findings also suggestion some cancer cells, particularly prostate cancer cells, can activate an increase in bone remodeling and ultimately increase overall bone production.[17] This increase in bone remodeling and bone production increases the overall growth of bone metastasizes. The overall control of bone remodeling is regulated by the binding of RANKL with its receptor or its decoy receptor, respectively, RANK and OPG.
