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物种
Mouse分子别名
RSPO1; R-spondin1; RP11-566C13.1; CRISTIN3; FLJ40906; RSPO Rspo1; R-spondin; Rspondin; RP23-325M14.2; Roof plate-specific spondin-1Accession
Q9Z132表达序列
Ser21-Gly209
表达宿主
E.coli分子量
Approximately 20.9 kDa, a single non-glycosylated polypeptide chain containing 189 amino acids.纯度
>96% by SDS-PAGE or HPLC.活性
Fully biologically active when compared to standard. Measured by its ability to induce Topflash reporter activity in HEK293T human embryonic kidney cells. The typical ED₅₀ is 50-200 ng/mL in the presence of 5 ng/mL recombinant mouse Wnt-3a.标记
Unconjugated标签
No Tag性状
Lyophilized powder缓冲体系
20 mM PB, with 150 mM NaCl, pH 7.4.
溶解方法
Before use this product, please read the direction below carefully.
This vial must be briefly centrifuged prior to opening to bring the contents to the bottom.
Reconstitute in a sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/ml.
Stock solutions should be apportioned into working aliquots and stored at ≤ -20℃.
Further dilutions should be made in appropriate buffered solutions.储存条件
For long term storage, the product should be stored ≤ -20℃.
Please avoid repeated freeze-thaw cycles after reconstitution.
12 months from date of receipt, -20 to -70℃ as supplied.
1 month, 2 to 8℃ under sterile conditions after reconstitution.
3 months, -20 to -70℃ under sterile conditions after reconstitution.
R-Spondin 1, also known as cysteine-rich and single thrombospondin domain containing protein 3 (Cristin 3) , is a 27kDa secreted protein that shares ~40% amino acid (aa) identity with three other R-Spondin family members (1, 2) . All R-Spondins regulate Wnt/beta-Catenin signaling but have distinct expression patterns. R-Spondin 1 competes with the Wnt antagonist DKK-1 for binding to the Wnt co-receptors, Kremen and LRP-6, reducing their DKK-1-mediated internalization. However, reports are mixed on whether R-Spondin 1 binds LRP-6 directly. R-Spondin 1 is expressed in early development at the roof plate boundary and is thought to contribute to dorsal neural tube development. I Postnatally, R-Spondin 1 is expressed by neuroendocrine cells in the intestine, adrenal gland and pancreas, and by epithelia in kidney and prostate (9) . Injection of recombinant R-Spondin 1 in mice causes activation of beta-catenin and proliferation of intestinal crypt epithelial cells, and ameliorates experimental colitis. Mouse R-Spondin 1 shares 98%, 94%, 94%, 93%, 92% and 88% aa identity with rat, human, horse, cow, goat and dog RSPO-1, respectively, within aa 21-209. Recombinant Mouse R-Spondin 1 is a single non-glycosylated polypeptide chain containing 189 amino acids







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