SRP3132
Osteoprotegerin (OPG) human
recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture
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OCIF (osteoclastogenesis inhibitory factor), OPG, TNFRSF11B, TR1
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biological source
human
recombinant
expressed in E. coli
Assay
≥98% (HPLC)
≥98% (SDS-PAGE)
form
lyophilized
mol wt
20.0 kDa
packaging
pkg of 50 μg
technique(s)
cell culture | mammalian: suitable
impurities
<0.1 EU/μg endotoxin, tested
color
white to off-white
UniProt accession no.
shipped in
wet ice
storage temp.
−20°C
Gene Information
human ... TNFRSF11B(4982)
Related Categories
General description
Osteoprotegerin (OPG) is a member of the TNFR (tumor necrosis factor receptor) superfamily that can act as a decoy receptor for RANKL (receptor activator of nuclear factor κ-B ligand). The gene is mapped to human chromosome 8q24. The primary structure of OPG protein consists of seven distinct domains, four of which corresponds to the extracellular cysteine-rich domains of TNFR proteins and constitutes the soluble OPG. OPG is expressed in a wide variety of tissues including adult heart, lung, kidney, liver, spleen, prostate, lymph node and bone marrow. It is secreted both as a monomeric and a dimeric protein. Recombinant human OPG is a soluble 20kDa protein containing 174 amino acid residues.
Application
Osteoprotegerin (OPG) human has been used as a supplement in human cell culture during cytokine production.
Biochem/physiol Actions
Binding of soluble osteoprotegerin (OPG) to sRANKL (soluble receptor activator of nuclear factor κ-B ligand) inhibits osteoclastogenesis by interrupting the signaling between stromal cells and osteoclastic progenitor cells, thereby leading to excess accumulation of bone and cartilage. Changes in the level of serum OPG are associated with atherosclerosis and cardiovascular disorders. It might also be associated with malignancy and plays a regulatory role in multiple myeloma, prostate, breast, bladder and gastric carcinoma.
Sequence
METFPPKYLH YDEETSHQLL CDKCPPGTYL KQHCTAKWKT VCAPCPDHYY TDSWHTSDEC LYCSPVCKEL QYVKQECNRT HNRVCECKEG RYLEIEFCLK HRSCPPGFGV VQAGTPERNT VCKRCPDGFF SNETSSKAPC RKHTNCSVFG LLLTQKGNAT HDNICSGNSE STQK
Physical form
Lyophilized from 10 mM Tris pH, 7.5 + 75 mM NaCl.
Reconstitution
Centrifuge the vial prior to opening. Reconstitute in 5 mM Tris, pH 7.5 to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a carrier protein (example 0.1% BSA) and store in working aliquots at -20°C to -80°C.
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Information
常规特殊物品
Certificates of Analysis (COA)
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Polymorphisms in three genes are associated with hemorrhagic stroke.
Brain and Behavior, 5, e00395-e00395 (2015)
The tumor necrosis factor superfamily member RANKL suppresses effector cytokine production in group 3 innate lymphoid cells
Immunity, 48(6), 1208-1219 (2018)
Functions of RANKL/RANK/OPG in bone modeling and remodeling.
Archives of Biochemistry and Biophysics, 473, 139-146 (2008)
Osteoprotegerin secreted by inflammatory and invasive breast cancer cells induces aneuploidy, cell proliferation and angiogenesis.
BMC Cancer, 15, 935-935 (2015)
Proceedings of the National Academy of Sciences of the United States of America, 96(7), 3540-3545 (1999-03-31)
A receptor that mediates osteoprotegerin ligand (OPGL)-induced osteoclast differentiation and activation has been identified via genomic analysis of a primary osteoclast precursor cell cDNA library and is identical to the tumor necrosis factor receptor (TNFR) family member RANK. The RANK
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