S100B recombinant protein

S100B Protein, Mouse, Recombinant (hFc Tag)

Cat. Num. AAA8123076

• Gene Names: S100b; Bpb; AI850290
• Purity: >80% as determined by SDS-PAGE
• Synonyms: S100B; S100B Protein; Mouse; Recombinant (hFc Tag); Mouse S100B/S100beta Protein (Fc Tag); AI850290 Protein; Bpb Protein; S100 calcium binding protein B; S100B recombinant protein

• Host: HEK293 Cells
• Purity/Purification: >80% as determined by SDS-PAGE
• Form/Format: Lyophilized from sterile PBS, pH7.4. Normally 5%-8% trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
• Sequence: Ser2-Glu92

• Species: Mouse
• Endotoxin: <1.0EU per ug of the protein as determined by the LAL method
• Predicted N Terminal: Glu
• Tag: N-human IgG1-Fc
• 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.
• Reconstitution: A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
• Preparation and Storage: Samples are stable for up to twelve months from date of receipt at -20 degree C to -80 degree C. Store it under sterile conditions at -20 degree C to -80 degree C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.; 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.

SDS-Page

Related Product Information for S100B recombinant protein

Background: 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.

Product Categories/Family for S100B recombinant protein

Calcium-binding Proteins and Related Molecules

References

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.

NCBI and Uniprot Product Information

• NCBI GI #: 6677839
• NCBI GeneID: 20203
• NCBI Accession #: NP_033141.1
• NCBI GenBank Nucleotide #: NM_009115.3
• UniProt Accession #: P50114
• Molecular Weight: 10,728 Da
• NCBI Official Full Name: protein S100-B
• NCBI Official Synonym Full Names: S100 protein, beta polypeptide, neural
• NCBI Official Symbol: S100b
• NCBI Official Synonym Symbols: Bpb; AI850290
• NCBI Protein Information: protein S100-B; S-100 protein beta chain; S-100 protein subunit beta; S100 calcium-binding protein B
• UniProt Protein Name: Protein S100-B
• Protein Family: Protein
• UniProt Gene Name: S100b
• UniProt Entry Name: S100B_MOUSE

Uniprot Description

S100B: Weakly binds calcium but binds zinc very tightly- distinct binding sites with different affinities exist for both ions on each monomer. Physiological concentrations of potassium ion antagonize the binding of both divalent cations, especially affecting high-affinity calcium-binding sites. Binds to and initiates the activation of STK38 by releasing autoinhibitory intramolecular interactions within the kinase. Interaction with AGER after myocardial infarction may play a role in myocyte apoptosis by activating ERK1/2 and p53/TP53 signaling. Dimer of either two alpha chains, or two beta chains, or one alpha and one beta chain. The S100B dimer binds two molecules of STK38. Interacts with AGER. The S100B dimer interacts with two molecules of CAPZA1. Although predominant among the water-soluble brain proteins, S100 is also found in a variety of other tissues. Belongs to the S-101 family.

Protein type: Calcium-binding

Cellular Component: ruffle; extracellular space; intracellular membrane-bound organelle; cell soma; perinuclear region of cytoplasm; cytoplasm; extracellular region; nucleus

Molecular Function: identical protein binding; RAGE receptor binding; protein homodimerization activity; zinc ion binding; metal ion binding; calcium ion binding; calcium-dependent protein binding; receptor binding

Biological Process: regulation of long-term neuronal synaptic plasticity; cellular calcium ion homeostasis; regulation of cell shape; learning and/or memory; positive regulation of I-kappaB kinase/NF-kappaB cascade; positive regulation of apoptosis; positive regulation of cell proliferation; energy reserve metabolic process; positive regulation of synaptic transmission; memory; regulation of cytokine biosynthetic process; regulation of neuronal synaptic plasticity