RANKL (TRANCE), soluble

• Description:

  RANKL and RANK are members of the TNF superfamily of ligands and receptors that play an important role in the regulation of specific immunity and bone turnover. RANK (receptor) was originally identified as a dendritic-cell-membrane protein, which by interacting with RANKL augments the ability of dendritic cells to stimulate naïve T-cell proliferation in a mixed lymphocyte reaction, to promote the survival of RANK + T cells, and to regulate T-cell-dependent immune response. RANKL, which is expressed in a variety of cells including osteoblasts, fibroblasts, activated T-cells and bone marrow stromal cells, is also capable of interacting with a decoy receptor called OPG. Binding of soluble OPG to sRANKL inhibits osteoclastogenesis by interrupting the signaling between stromal cells and osteoclastic progenitor cells, thereby leading to excess accumulation of bone and cartilage. Recombinant rat sRANKL is a 19.4 kDa polypeptide comprising the TNF homologous region of RANKL (174 amino acid residues) .

• Synonyms:

  Soluble Receptor Activator of NFkB Ligand, TNFSF11, TRANCE (TNF-related activation-induced cytokine), OPGL, ODF (Osteoclast differentiation factor), Tumor necrosis factor ligand superfamily member 11, tumor necrosis factor ligand superfamily member 11, osteoprotegerin ligand, receptor activator of nuclear factor kappa B ligand, receptor activator of nuclear factor kappa-B ligand

• NCBI Gene ID:

  117516

• UniProt:

  Q9ESE2

• Accession Number:

  NP_476490.1

• Accession Number mRNA:

  NM_057149.1

• Chromosomal Location:

  15q11

• Reactivity:

  Rat

• Cross Reactivity:

  Mouse, Rat

• Sequence:

  PAMMEGSWLD VARRGKPEAQ PFAHLTINAA DIPSGSHKVS LSSWYHDRGW AKISNMTLSN GKLRVNQDGF YYLYANICFR HHETSGSVPA DYLQLMVYVV KTSIKIPSSH NLMKGGSTKN WSGNSEFHFY SINVGGFFKL RAGEEISVQV SNPSLLDPDQ DATYFGAFKV QDID

• Endotoxin:

  < 0.1 ng/µg of protein (< 1EU/µg)

• Purity:

  > 98% by SDS-PAGE & HPLC analyses

• Bioactivity:

  Determined by its ability to induce NFkappaB in RAW264.7 cells in the absence of any cross-linking. The expected ED50 for this effect is 10.0-25.0 ng/ml.

• Length:

  174

• Form:

  Lyophilized

• Molecular Weight:

  19.4 kDa

• Host or Source:

  E. coli