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Mouse S100B / S100beta Protein (Fc Tag)

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S100BProtein Product Information
Protein Construction:A DNA sequence encoding the mouse S100B (P50114) (Ser2-Glu92) was expressed with the fused Fc region of human IgG1 at the N-terminus.
Expressed Host:Human Cells
Form & Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
S100BProtein QC Testing
Purity:> 80 % as determined by SDS-PAGE
Bio-Activity:1. Measured by its binding ability in a functional ELISA.
2. Immobilized recombinant mouse S100B-Fc (Cat:50986-M01H) at 10 μg/ml (100 μl/well) can bind biotinylated recombinant human AGER (Cat:11629-HNCH) with a linear range of 0.03-0.5 ug/ml.
Endotoxin:< 1.0 EU per μg of the protein as determined by the LAL method
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:Glu
Molecule Mass:The recombinant mouse S100B/Fc comprises 351 amino acids and has a predicted molecular mass of 39 kDa. The apparent molecular mass of the protein is approximately 41 kDa in SDS-PAGE under reducing conditions due to glycosylation.
Formulation:Lyophilized from sterile PBS, pH 7.4
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
S100BProtein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.

S100B is a member of the S100 family of proteins containing two EF-hand-type calcium-binding motifs. S100B exerts both intracellular and extracellular functions. Intracellular S100B acts as a stimulator of cell proliferation and migration and an inhibitor of apoptosis and differentiation, which might have important implications during brain, cartilage and skeletal muscle development and repair, activation of astrocytes in the course of brain damage and neurodegenerative processes, and of cardiomyocyte remodeling after infarction, as well as in melanomagenesis and gliomagenesis. As an extracellular factor, S100B engages RAGE (receptor for advanced glycation end products) in a variety of cell types with different outcomes (i.e. beneficial or detrimental, pro-proliferative or pro-differentiative) depending on the concentration attained by the protein, the cell type and the microenvironment. This calcium binding astrocyte-specific cytokine, presents a marker of astrocytic activation and reflects CNS injury. The excellent sensitivity of S100B has enabled it to confirm the existence of subtle brain injury in patients with mild head trauma, strokes, and after successful resuscitation from cardiopulmonary arrest. Recent findings provide evidence, that S100B may decrease neuronal injury and/or contribute to repair following traumatic brain injury (TBI). Hence, S100B, far from being a negative determinant of outcome, as suggested previously in the human TBI and ischemia literature, is of potential therapeutic value that could improve outcome in patients who sustain various forms of acute brain damage.

  • Kleindienst A, et al. (2006) A critical analysis of the role of the neurotrophic protein S100B in acute brain injury. J Neurotrauma. 23(8): 1185-200.
  • Bloomfield SM, et al. (2007) Reliability of S100B in predicting severity of central nervous system injury. Neurocrit Care. 6(2): 121-38.
  • Donato R, et al. (2009) S100B's double life: intracellular regulator and extracellular signal. Biochim Biophys Acta. 1793(6): 1008-22.
  • Beaudeux JL. (2009) S100B protein: a novel biomarker for the diagnosis of head injury. Ann Pharm Fr. Beaudeux JL. 67(3): 187-94.
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