- Catalog number
- MA1088
- Size / count
- 100 µg/Vial
- Dry ice
- No
- Hazardous
- No
- Discontinued
- No
- Background
- S100 protein is a 21,000-Da component first isolated from brain by Moore (1965) . Immunocytochemical studies demonstrated that S100 protein is produced by a wide variety of normal and neoplastic cells of mesodermal, neuroectodermal, and epithelial origin (Herrera et al., 1988) . The S100 molecule is a dimer; thus there are 3 forms of S100: alpha-alpha, known as S-100a (0) ; alpha-beta, known as S-100a; and beta-beta, known as S-100b. S100 genes are clustered on human chromosome 1q21. S-100 protein expression by primary and metastatic adenocarcinomas.
- Synonyms
- Protein S100-B; S-100 protein beta chain; S-100 protein subunit beta; S100 calcium-binding protein B; S100b
- Gene Name
- S100B
- Gene ID
- Human (6285), Mouse (20203), Rat (25742)
- UniProt
- P04631
- Host
- Mouse
- Reactivity
- Human, Rabbit, Rat
- Cross Reactivity
- No cross-reactivity with other proteins
- Immunogen
- Bovine brain S-100b.
- Clonality
- Monoclonal
- Clone
- Clone: SH-B1
- Tissue Specificity
- Although predominant among the water-soluble brain proteins, S100 is also found in a variety of other tissues. .
- Applications
- IHC
- Field of Research
- Cell Biology, Cell Cycle, Cell Differentiation, Epigenetics and Nuclear Signaling, Neural Stem Cells, Stem Cells
- Purification
- Ascites
- Concentration
- Adding 1 ml of PBS buffer will yield a concentration of 100 μg/ml.
- Form
- Lyophilized
- Reconstitution
- Add 1ml of PBS buffer will yield a concentration of 100ug/ml.
- Function
- 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. Could assist ATAD3A cytoplasmic processing, preventing aggregation and favoring mitochondrial localization. May mediate calcium-dependent regulation on many physiological processes by interacting with other proteins, such as TPR-containing proteins, and modulating their activity. .
- References & Citations
- 1. Engelkamp, D.; Schafer, B. W.; Mattei, M. G.; Erne, P.; Heizmann, C. W. : Six S100 genes are clustered on human chromosome 1q21: identification of two genes coding for the two previously unreported calcium-binding proteins S100D and S100E. Proc. Nat. Acad. Sci. 90: 6547-6551, 1993. 2. Herrera, G. A.; Turbat-Herrera, E. A.; Lott, R. L. : S-100 protein expression by primary and metastatic adenocarcinomas. Am. J. Clin. Path. 89: 168-176, 1988.
- Storage Conditions
- Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.
- Calculated Molecular Weight
- 10744 MW
- Observed Molecular Weight
- 34 kDa
- Specificity
- No cross reactivity with other proteins.
- Gene Name Synonym
- Protein S100-B
- Subcellular Location
- Cytoplasm . Nucleus .
- Sequence Similarities
- Belongs to the S-100 family.
- Protein Name
- Protein S100-B
- Isotype
- Mouse IgG1
- Contents
- Mouse ascites fluid, 1.2% sodium acetate, 2mg BSA, with 0.01mg NaN3 as preservative.