Recombinant Human Osteoprotegerin/TNFRSF11B Protein

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SDS-Page: Human Osteoprotegerin/TNFRSF11B Protein [NBP2-35108]

Product Details

Summary
Reactivity HuSpecies Glossary
Applications Func, PAGE
Format
Carrier-Free
Concentration
LYOPH

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Recombinant Human Osteoprotegerin/TNFRSF11B Protein Summary

Description
A single, non-glycosylated biologically active polypeptide chain corresponding to 173 residues of TNFRSF11B.

Source: E. coli

Amino Acid Sequence: ETFPPKYLHY DEETSHQLLC DKCPPGTYLK QHCTAKWKTV CAPCPDHYYTDSWHTSDECL YCSPVCKELQ YVKQECNRTH NRVCECKEGR YLEIEFCLKHRSCPPGFGVV QAGTPERNTV CKRCPDGFFS NETSSKAPCR KHTNCSVFGLLLTQKGNATH DNICSGNSES TQK

Preparation
Method
Novus' biologically active proteins are stringently purified to provide only the safest and most highly effective proteins available. This protein was expressed in E. coli, purified by HPLC, QC tested by SDS-PAGE and Western Blot and validated on appropriate cell lines for bioactivity. All HPLC and bioactivity data is provided for your assurance.
Details of Functionality
Osteoprotegerin Protein is fully biologically active when compared to standard. The ED50 as determined by neutralizing the stimulation of U937 cells is less than 10 ng/ml, corresponding to a specific activity of > 1.0 x 10^5 IU/mg in the presence of 10 ng/mL soluble rHuRANKL (sRANKL).
Source
E. coli
Protein/Peptide Type
Biologically Active Protein
Gene
TNFRSF11B
Purity
>95% pure by SDS-PAGE
Endotoxin Note
Less than 1 EU/ug of endotoxin as determined by LAL method.

Applications/Dilutions

Theoretical MW
19.7 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Packaging, Storage & Formulations

Storage
Store at -20 to -70C as supplied. After reconstitution, store at 2 to 8C for 1 month and at -20 to -70C for long term storage. Avoid repeated freeze-thaw cycles.
Buffer
Lyophilized from a 0.2 um filtered concentrated solution in 20 mM PB,150 mM NaCl, pH 6.0.
Concentration
LYOPH
Purity
>95% pure by SDS-PAGE
Reconstitution Instructions
Reconstitute with sterilized distilled water or 0.1% BSA aqueous buffer to a final concentration of 0.1 - 1.0 mg/ml.

Notes

This lyophilized preparation is stable at 2-8 degrees C, but should be kept at -20 degrees C for long term storage, preferably desiccated. Upon reconstitution, the preparation is most stable at -20 to -80 degrees C, and can be stored for one week at 2-8 degrees C. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 degrees C to -80 degrees C. Avoid repeated freeze/thaw cycles.

Alternate Names for Recombinant Human Osteoprotegerin/TNFRSF11B Protein

  • OCIF
  • OCIFMGC29565
  • OPGtumor necrosis factor receptor superfamily member 11B
  • Osteoclastogenesis inhibitory factor
  • Osteoprotegerin
  • TNFRSF11B
  • TR1
  • tumor necrosis factor receptor superfamily, member 11b

Background

Osteoprotegerin (OPG), also named osteoclastogenesis inhibitory factor (OCIF), and tumor necrosis factor receptor superfamily member 11B (TNFRSF11B), is a TNFRSF11B-encoded protein in humans. OPG is a 401 a.a. basic glycoprotein which comprises 7 structural domains. It is either a 60 kDa monomer or a 120 kDa dimer linked by disulfide bridges. OPG acts as a decoy receptor for the receptor activator of nuclear factor kappa B ligand (RANKL) and inhibits the activation of osteoclasts and promotes osteoclast apoptosis in vitro and may also play a role in preventing arterial calcification. OPG has been applied to decrease bone resorption in women with postmenopausal osteoporosis and in patients with lytic bone metastases. Mature human OPG shares 86 %, 87 %, 92 %, 92 % and 88 % amino acid sequence identity with mouse, rat, equine, canine and bovine OPG, respectively.

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Peptides and proteins are guaranteed for 2 years from date of receipt.

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Bioinformatics

Gene Symbol TNFRSF11B
Entrez
Uniprot