Sulfo-NHS-SS-biotin 是一种长链可裂解和细胞无渗透的胺类活性生物素化 (biotinylation) 试剂。Sulfo-NHS-SS-biotin 可用于细胞表面蛋白 (cell-surface protein) 的标记和纯化。

Sulfo-NHS-SS-biotin is a long-chain cleavable and cell-impermeant amine-reactive biotinylation reagent. Sulfo-NHS-SS-biotin can be used for the labeling and purifying of cell-surface protein.

Solid

IC50: cell-surface protein

Sulfo-NHS-SS-biotin is a cell-surface-labeling reagent, it is a negatively charged reagent and does not permeate cell membranes.
Sulfo-NHS-SS-biotin reacts with primary amines (NH2), such as lysine side-chains, or the amino-termini of polypeptides.
Sulfo-NHS-SS-biotin has a sulfonate group and prevents it from permeating cell membranes. Thr group’s cleavable spacer arm enables initially biotinylated proteins to be released from streptavidin affinity columns.
Sulfo-NHS-SS-biotin (1 mg/ml; 15 min) is applied in cells in monolayer culture (washed by ice-cold PBS). The biotinylation reactions are terminated with 100 mM glycine in PBS. After washing with PBS, cell extracts are prepared in RIPA buffer with protease inhibitor cocktail (HY-K0010). Biotinylated membrane proteins are precipitated with streptavidin-sepharose and proteins are eluted with SDS sample bu

Room temperature in continental US; may vary elsewhere.

-20°C, sealed storage, away from moistur In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

[1]. Chia CP,et al. Phagocytosis in Dictyostelium discoideum is inhibited by antibodies directed primarily against common carbohydrate epitopes of a major cell-surface plasma membrane glycoprotein.Exp Cell Res. 1989 Mar;181(1):11-26.
[2]. Jo M, et al. Cell signaling by urokinase-type plasminogen activator receptor induces stem cell-like properties in breast cancer cells. Cancer Res. 2010 Nov 1;70(21):8948-58.

In Vitro: DMSO : 125 mg/mL (206.04 mM; Need ultrasonic)H₂O : < 0.1 mg/mL (ultrasonic;warming;heat to 60°C) (insoluble)配制储备液