Sulfo-NHS-LC-Biotin是一种长链胺反应性标记试剂,其生物素样基团从亲和链霉素中洗脱出来,Sulfo-NHS-LC-Biotin可用于蛋白纯化或细胞表面蛋白的标记。
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Sulfo-NHS-LC-Biotin is a labeling reagent with a long-chain structure that reacts with amines. Its biotin-like groups can be efficiently eluted from streptomycin avidin, making it suitable for purification or labeling of cell surface proteins. The spacer arm between the biotin and amine reactive linker is large, aiding in overcoming steric hindrance and enhancing the efficiency of surface labeling [1-3].
Sulfo-NHS-LC-Biotin (10?mM) can be used for biotinization of exosomes from Mycobacterium tuberculosis (Mtb)-infected cells [4]. Sulfo-NHS-LC-Biotin also can be used for label cells[5]. It also can monitor sertoli cell Blood-Testis Barrier (BTB) integrity [6].
参考文献:
[1]. Diaz G, Wolfe LM, et,al. Changes in the Membrane-Associated Proteins of Exosomes Released from Human Macrophages after Mycobacterium tuberculosis Infection. Sci Rep. 2016 Nov 29;6:37975. doi: 10.1038/srep37975. PMID: 27897233; PMCID: PMC5126699.
[2]. Gabant G, Augier J, et,al. Assessment of solvent residues accessibility using three Sulfo-NHS-biotin reagents in parallel: application to footprint changes of a methyltransferase upon binding its substrate. J Mass Spectrom. 2008 Mar;43(3):360-70. doi: 10.1002/jms.1328. PMID: 17968972.
[3]. Ghebrehiwet B, Peerschke EI. Structure and function of gC1q-R: a multiligand binding cellular protein. Immunobiology. 1998 Aug;199(2):225-38. doi: 10.1016/S0171-2985(98)80029-6. PMID: 9777408.
[4]. Diaz G, Wolfe LM, et,al. Changes in the Membrane-Associated Proteins of Exosomes Released from Human Macrophages after Mycobacterium tuberculosis Infection. Sci Rep. 2016 Nov 29;6:37975. doi: 10.1038/srep37975. PMID: 27897233; PMCID: PMC5126699.
[5]. Luo Y, McDonald K, et,al. Trafficking of immature DeltaF508-CFTR to the plasma membrane and its detection by biotinylation. Biochem J. 2009 Apr 1;419(1):211-9, 2 p following 219. doi: 10.1042/BJ20081869. PMID: 19053947.
[6]. Wu S, Wang L, et,al. An In Vitro Assay to Monitor Sertoli Cell Blood-Testis Barrier (BTB) Integrity. Methods Mol Biol. 2021;2367:207-213. doi: 10.1007/7651_2021_390. PMID: 33830455.?
Sulfo-NHS-LC-Biotin是一种长链胺反应性标记试剂,其生物素样基团从亲和链霉素中洗脱出来,Sulfo-NHS-LC-Biotin可用于蛋白纯化或细胞表面蛋白的标记。在生物素和胺反应连接剂之间含有一个大的间隔臂。有助于克服位阻,提高表面标记效率[1-3]。
Sulfo-NHS-LC-Biotin (10 mM)可用于结核分枝杆菌(Mtb)感染细胞外泌体的生物素化[4]。Sulfo-NHS-LC-Biotin也可用于标记细胞[5]。它还可以监测sertoli细胞Blood-Testis Barrier (BTB)的完整性[6]。
外泌体生物素化[1]:
Sulfo-NHS-LC-Biotin用于标记暴露于完整外泌体外部小叶的蛋白质,并且生物素和胺反应性连接剂之间含有较大的间隔臂,有助于克服位阻并提高外泌体表面的标记效率。
裂解的生物素化外泌体在室温下暴露于10 mM的Sulfo-NHS-Biotin中30分钟,以标记剩余的游离胺。最后去除过量的生物素。
细胞Blood-Testis Barrier (BTB)完整性监测[2]:
注:在PBS/CM pH 8.0 (10 mM磷酸钠,0.15 M NaCl)中新鲜配制10 mg/ml Sulfo-NHS-LC-Biotin,其中含有1 mM CaCl2作为标记缓冲液(生物素试剂在使用前新鲜配制;不要储存)。
磷酸盐缓冲盐水(PBS)/CM: 10 mM NaH2PO4, 0.15 M NaCl, 1 mM CaCl2, pH 8.0, 22℃。
参考文献:
[1]. Diaz G, Wolfe LM, et,al. Changes in the Membrane-Associated Proteins of Exosomes Released from Human Macrophages after Mycobacterium tuberculosis Infection. Sci Rep. 2016 Nov 29;6:37975. doi: 10.1038/srep37975. PMID: 27897233; PMCID: PMC5126699.
[2]. Wu S, Wang L, et,al. An In Vitro Assay to Monitor Sertoli Cell Blood-Testis Barrier (BTB) Integrity. Methods Mol Biol. 2021;2367:207-213. doi: 10.1007/7651_2021_390. PMID: 33830455.