重组人R-Spondin-1
重组人R-Spondin-1是一种25.6kDa的蛋白质,由243个氨基酸残基组成。随着类器官领域的扩大,R-Spondin 1被广泛用于类器官细胞培养中,作为促进3D类器官生长和存活的重要成分。R-Spondin-1(Rspo-1)属于Wnt调节剂的(Rspo)家族。目前,该家族由四个结构相关的分泌配体(Rspo 1-4)组成,所有配体都含有弗林样结构域和血小板反应蛋白结构域。Rspo-1在发育中的中枢神经系统的某些区域以及肾上腺、卵巢、睾丸、甲状腺和气管中表达。Rspo可以以刺激Wnt/β-catenin信号通路的方式与Frizzled/LRP6受体复合物相互作用。
(纯度) Purity
≥95%, by SDS-PAGE (under reducing (R) & Non-reducing conditions, visualized by Coomassie staining).
(内毒素) Endotoxin
≤10 EU/mg by the LAL method.
(生物活性) Bioactivity
Measured by its ability to induce Topflash reporter bioactivity in CHO cells in the presence of 50 ng/mL wnt3a. The expected ED50 is <1.0 μg/mL.
(种属) Species
Human
(表达系统) Expression System
CHO
(预测分子量大小) Mol. Weight
26.7 kDa
(表达区间) Expression Region
Ser21-Ala263
(标签) Tag Info
Tag free
(剂型) Formulation
Lyophilized
(溶液) Buffer
PBS, 5% Mannitol and 0.01% Tween 80, pH7.4.
(规格) Size
10μg/50μg/1mg
(复溶) Reconstitution
It is recommended to redissolve in sterile deionized water.
(运输) Shipping
The product is shipped with blue ice.
(存储) Storage & Stability
36 months at-20°C to -80°C in lyophilized state;
6 months at -20°C to -80°C under sterile conditions after reconstitution;
7-10 days at 2°C to 8°C under sterile conditions after reconstitution;
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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