Recombinant human RANKL protein - Bioactive cytokine

Recombinant cytokine, source: E. coli

ABOUT

Human RANKL protein - E. coli-expressed, tag-free, carrier-free

Recombinant human RANKL is a high-quality and biologically active cytokine, validated using proprietary RANKL reporter cells. This member of the Tumor Necrosis Factor (TNF) superfamily is produced in E. coli and thoroughly purified to remove endotoxins.

Recombinant human RANKL can be used together with HEK-Blue™ RANKL cells for the screening of inhibitory molecules, such as Denosumab, a therapeutic monoclonal antibody blocking the RANKL cytokine from binding to its receptor RANK (see figures).

 

Key features

  • Each lot is validated using HEK-Blue™ RANKL cells
  • Endotoxin ≤1 EU/µg
  • 0.2 µm sterile-filtered

Applications

  • Standard for RANKL detection and quantification assays
  • Screening and release assays for antibodies blocking RANKL signaling
  • Screening and release assays for engineered RANKL

 

The Receptor Activator of NF-κB Ligand (RANKL) is a member of the TNF (Tumor Necrosis Factor) superfamily and plays a pivotal role in bone remodeling and dendritic cell survival. Blocking the binding of RANKL to its receptor RANK has been shown to reduce osteoporosis, prevent skeletal-related events (SREs) from bone metastasis in cancer, or improve anti-tumor immunity.

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All products are for internal research use only, and not for human or veterinary use.

SPECIFICATIONS

Specifications

Source
E. coli
Species
Human
Synonyms
TNFSF11
Tumor necrosis factor ligand superfamily member 11
TNF-related activation-induced cytokine
TRANCE
Accession sequence

O14788

Molecular weight
~ 20 kDa (SDS-PAGE)
Carrier
Carrier-free
Tag
Tag-free
Purity
≥95% (SDS-PAGE)
Solubility

100 μg/ml in water

Formulation buffer

Solution containing Tris-HCl and NaCl

Appearance (form)
Lyophilized
Reconstitution buffer
1X PBS with 0.1 % BSA or HSA (not provided)
Endotoxin

The absence of bacterial contamination (e.g. lipoproteins and endotoxins) has been confirmed using HEK-Blue™ TLR2 and HEK‑Blue™ TLR4 cells.

Tested applications

Cellular assays

Quality control

Each lot is functionally tested and validated.

CONTENTS

Contents

  • Product: 
    Recombinant human RANKL
  • Cat code: 
    rcyec-hrankl
  • Quantity: 
    10 µg

Shipping & Storage

  • Shipping method:  Room temperature
  • Storage:

    • -20°C

    Caution:

    • Avoid repeated freeze-thaw cycles

Details

RANKL background

Receptor Activator of NF-κB Ligand (RANKL), also known as member 11 of the tumor necrosis factor (TNF) superfamily (TNFSF11) or TNF-related activation-induced cytokine (TRANCE), exists as a transmembrane or soluble protein produced by osteoblasts and activated T cells [1]. RANKL binds to its receptor RANK via an obligate trimer configuration [1, 2]. RANKL/RANK signaling plays a pivotal role in bone remodeling and dendritic cell survival, thereby enhancing the induction of T cell responses [1]. Upon RANKL binding, RANK trimers recruit TNF receptor-associated factor (TRAF) adaptor proteins, such as TRAF6, to TRAF-binding motifs within their cytoplasmic domains [1]. The TRAF6 signaling cascade results in the activation of NF-κB and AP-1 transcription factors. Multiple efforts have focused on the development of anti‑RANKL antibodies or small‑molecule inhibitors for blocking RANKL/RANK signaling to reduce osteoporosis, prevent skeletal-related events (SREs) from bone metastasis in cancer, or improve anti-tumor immunity [1-3].

 

1. Cheng ML. & Fong L., 2014. Effects of RANKL-targeted therapy in immunity and cancer. Front. Oncol. 3:329.
2. Ahern E. et al., 2018. Roles of the RANKL-RANK axis in anti-tumour immunity — implications for therapy. Nat. Rev. Clin. Oncol. 15:676-93.
3. Nakai Y. et al., 2019. Efficacy of an orally active small-molecule inhibitor of RANKL in bone metastasis. Bone Res. 7:1.

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