Recombinant Human S100P

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Hersteller Cell Sciences
Kategorie
Typ Proteins
Specific against Human
Menge 10 ug
Host E.coli
ArtNr CS-CRS134B
eClass 6.1 34160400
eClass 9.0 42020190
Lieferbar
Description
S100P was originally described as a placental protein of 95 amino acid residues shares about 50% sequence identity with the brain S100 proteins alpha and beta. S100 proteins are small dimeric members of the EF-hand superfamily of Ca(2+) binding proteins thought to participate in mediating intracellular Ca(2+) signals by binding to and thereby regulating target proteins in a Ca(2+)-dependent manner. S100P in addition to binding Ca2+, also binds Zn2+ and Mg2+. S100P gene is located on chromosome 4p16. S100P is dysregulated in the androgen-independent prostate cancer cell lines LNCaP-R, DU145, and PC3 and may play a role in the etiology of prostate cancer. In ductal hyperplasias, in situ and invasive ductal carcinoma, but not in the normal tissues, S100P overexpression is an early event that might play an important role in the immortalization of human breast epithelial cells, in vitro, and tumor progression, in vivo . In NIH3T3 cells, the expression of S100P led to the presence of S100P in the culture medium, increased cellular proliferation, and enhanced survival following detachment from the culture substrate or after exposure to the chemotherapeutic agent 5-flurouracil. The proliferation and survival effects of S100P expression were duplicated in a time- and concentration-dependent manner by extracellular addition of purified S100P to wild-type NIH3T3 cells and correlated with the activation of Erks and NFB. To determine the mechanisms involved in these effects, we tested the hypothesis that S100P activated RAGE (Receptor for Activated Glycation End-Products). It was found that S100P coimmunoprecipitated with RAGE. Furthermore, the effects of S100P on cell signaling, proliferation and survival were blocked by agents that interfere with RAGE including administration of an amphoterin derived peptide known to antagonize RAGE activation, anti-RAGE antibodies and by expression of a dominant negative RAGE. This data suggest that S100P can act in an autocrine manner via RAGE to stimulate cell proliferation and survival
Formulation
Sterile filtered and lyophilized from 0.5 mg/ml in 0.05 M Phosphate buffer pH 7.2 + 0.1M NaCl.
Reconstitution
Add 0.2 ml of deionized water and let the lyophilized pellet dissolve completely.
Storage and Stability
Store lyophilized protein at -20C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4C for a limited period of time, it does not show any change after two weeks at 4C. The lyophilized protein remains stable until the expiration date when stored at -20C.
GeneID
6286
Source
E. coli
Molecular Weight
10.4 kDa
Purity
Greater than 95% as determined by SDS-PAGE.
AA Sequence
MTELEAAMGM IIDVFSRYSG SEGSTQTLTK GELKVLMEKE LPGFLQSGKD KDAVDKLLKD LDANGDAQVD FSEFIVFVAA ITSACHKYFE KAGLK.

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Menge: 10 ug
Lieferbar: In stock
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