Description
| Product Name: | Human S100B Recombinant Protein |
| Product Code: | RPPB4571 |
| Size: | 20µg |
| Species: | Human |
| Target: | S100B |
| Synonyms: | Protein S100-B, S100 calcium-binding protein B, S-100 protein subunit beta, S-100 protein beta chain, S100B, NEF, S100, S100beta. |
| Source: | Escherichia Coli |
| Physical Appearance: | Sterile Filtered clear solution. |
| Formulation: | S100B (1mg/ml) is supplied in 20mM Tris-HCl buffer (pH8.0), 1mM DTT and 10% glycerol. |
| Stability: | Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).Avoid multiple freeze-thaw cycles. |
| Purity: | Greater than 90.0% as determined by SDS-PAGE. |
| Amino Acid Sequence: | MGSSHHHHHH SSGLVPRGSH MSELEKAMVA LIDVFHQYSG REGDKHKLKK SELKELINNE LSHFLEEIKE QEVVDKVMET LDNDGDGECD FQEFMAFVAM VTTACHEFFE HE |
S100b is a member of the S100 family of proteins which are a family of EF-hand calcium binding proteins that exist mostly as dimers of the 20 currently identified individual S100 monomers. The S100B homodimer is expressed in cells of the central nervous system, glial cells and in certain peripheral cells e.g. Schwann cells, melanocytes, adipocytes and chondrocytes. S100 proteins are localized either in the cytoplasm or the nucleus of a wide range of cells. S100 proteins are involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. There are at least 13 members in the S100 gene family, which are located as a cluster on chromosome 1q21; however, S100b is located at 21q22.3. The determination of S100B in serum levels may be used to monitor the extent of brain injury and malignant melanoma. S100b proteins may have a role in Neurite extension, proliferation of melanoma cells, stimulation of Ca2+ fluxes, inhibition of PKC-mediated phosphorylation, astrocytosis and axonal proliferation, and inhibition of microtubule assembly. Chromosomal rearrangements and altered expression of the S100b gene are implicated in several neurological, neoplastic, and other types of diseases, including Alzheimer's disease, Down's syndrome, epilepsy, amyotrophic lateral sclerosis, melanoma, and type I diabetes.
S100B Human Recombinant produced in E.Coli is single, a non-glycosylated, Polypeptide chain containing 112 amino acids fragment (1-92) with a 20 amino acids N-terminal His tag and having a total molecular mass of 12.8kDa. The S100B is purified by proprietary chromatographic techniques.
| UniProt Protein Function: | 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. |
| UniProt Protein Details: | Protein type:Calcium-binding Chromosomal Location of Human Ortholog: 21q22.3 Cellular Component: ruffle; extracellular space; cell soma; intracellular membrane-bound organelle; perinuclear region of cytoplasm; cytoplasm; extracellular region; nucleus Molecular Function:identical protein binding; protein binding; RAGE receptor binding; protein homodimerization activity; zinc ion binding; calcium ion binding; calcium-dependent protein binding; tau protein binding Biological Process: central nervous system development; positive regulation of I-kappaB kinase/NF-kappaB cascade; positive regulation of apoptosis; response to glucocorticoid stimulus; memory; cell proliferation; regulation of cell shape; learning and/or memory; astrocyte differentiation; axonogenesis; response to methylmercury; positive regulation of cell proliferation; innate immune response; regulation of neuronal synaptic plasticity |
| NCBI Summary: | The protein encoded by this gene is a member of the S100 family of proteins containing 2 EF-hand calcium-binding motifs. S100 proteins are localized in the cytoplasm and/or nucleus of a wide range of cells, and involved in the regulation of a number of cellular processes such as cell cycle progression and differentiation. S100 genes include at least 13 members which are located as a cluster on chromosome 1q21; however, this gene is located at 21q22.3. This protein may function in Neurite extension, proliferation of melanoma cells, stimulation of Ca2+ fluxes, inhibition of PKC-mediated phosphorylation, astrocytosis and axonal proliferation, and inhibition of microtubule assembly. Chromosomal rearrangements and altered expression of this gene have been implicated in several neurological, neoplastic, and other types of diseases, including Alzheimer's disease, Down's syndrome, epilepsy, amyotrophic lateral sclerosis, melanoma, and type I diabetes. [provided by RefSeq, Jul 2008] |
| UniProt Code: | P04271 |
| NCBI GenInfo Identifier: | 134138 |
| NCBI Gene ID: | 6285 |
| NCBI Accession: | P04271.2 |
| UniProt Secondary Accession: | P04271,D3DSN6, |
| UniProt Related Accession: | P04271 |
| Molecular Weight: | 10,713 Da |
| NCBI Full Name: | Protein S100-B |
| NCBI Synonym Full Names: | S100 calcium binding protein B |
| NCBI Official Symbol: | S100B�� |
| NCBI Official Synonym Symbols: | NEF; S100; S100-B; S100beta�� |
| NCBI Protein Information: | protein S100-B; S-100 protein subunit beta; S-100 calcium-binding protein, beta chain; S100 calcium-binding protein, beta (neural) |
| UniProt Protein Name: | Protein S100-B |
| UniProt Synonym Protein Names: | S-100 protein beta chain; S-100 protein subunit beta; S100 calcium-binding protein B |
| Protein Family: | Protein |
| UniProt Gene Name: | S100B�� |
| UniProt Entry Name: | S100B_HUMAN |
