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荧光标记微管蛋白能直接用于实时、高灵敏度的体外聚合与成像分析
- 库存:
荧光标记微管蛋白能直接用于实时、高灵敏度的体外聚合与成像分析
- 供应商:
TL488M-A
- 英文名:
Tubulin (HiLyte 488TM dye labeled; porcine, micro-injctn)
- 规格:
5x20ug
荧光标记微管蛋白,Tubulin (HiLyte 488TM dye labeled; porcine, micro-injctn)
荧光标记微管蛋白能直接用于实时、高灵敏度的体外聚合与成像分析
Tubulin protein (fluorescent HiLyte 488): porcine brain
Applications
- Fluorescent microtubule substrates for in vitro kinesin motility assays
- Microtubule dynamics studies in vitro
- Analyze effects of MAPs & drugs on microtubule dynamics in vitro
Material
Tubulin protein T240 is labeled on random surface lysines using HiLyte™488 activated ester;
- Ex: 502 nm, Em:527 nm – green spectrum
- Labeling stoichiometry: ~1–2 dyes per tubulin heterodimer
- Supplied as a lyophilized powder
Purity
Protein purity is assessed by scanning densitometry of Coomassie Blue stained protein on a12% polyacrylamide gel. Purity is determined to be >99% pure.
Biological Activity Assay
TL488M tubulin retains high biological activity, with >80% polymerizing into microtubules in vitro, as confirmed by a spin-down assay. This performance is comparable to that of unmodified tubulin.
CAT. NO. PRODUCT AMOUNT
T333P-A Tubulin (Biotin Conjugate; Porcine Brain) 5 x 20 µg
T333P-B Tubulin (Biotin Conjugate; Porcine Brain) 20 x 20 µg
T333P-XL Tubulin (Biotin Conjugate; Porcine Brain) 1 x 500 µg
TL440M-A Tubulin (AMCA dye labeled; porcine, micro-injctn) 5 x 20 µg
TL440M-B Tubulin (AMCA dye labeled; porcine, micro-injctn) 20 x 20 µg
TL488M-A Tubulin (HiLyte 488TM dye labeled; porcine, micro-injctn) 5 x 20 µg
TL488M-B Tubulin (HiLyte 488TM dye labeled; porcine, micro-injctn) 20 x 20 µg
TL590M-A Tubulin (Rhodamine labeled; porcine, micro-injctn) 5 x 20 µg
TL590M-B Tubulin (Rhodamine labeled; porcine, micro-injctn) 20 x 20 µg
TL620M-A Tubulin (X-rhodamine labeled; Bovine Brain micr-injctn) 5 x 20 µg
TL620M-B Tubulin (X-rhodamine labeled; Bovine Brain micr-injctn) 20 x 20 µg
TL670M-A Tubulin (HiLyte 647TM dye labeled; porcine, micro-injctn) 5 x 20 µg
TL670M-B Tubulin (HiLyte 647TM dye labeled; porcine, micro-injctn) 20 x 20 µg
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文献和实验Sequenase[TM] catalyzed sequencing with dye-labeled terminators
to room temperature, alpha-thio-deoxynucleotides, fluorescent-labeled dye-terminators, and diluted Sequenase[TM] DNA polymerase are added and the mixture is incubated at 37degC. The reaction is stopped by adding ammonium acetate and ethanol, and the DNA
细胞内构成微管的蛋白质,分子量约为 5.5万,通常按二聚体( 6S)分离出来。是每一个微管蛋白分子与一个鸟嘌呤核苷酸分子结合在一起。微管蛋白能与秋水仙碱或长春花碱结合。在无钙状态下,加入中性盐和 GTP或 ATP,微管蛋白就会聚合形成微管。微管蛋白最初是从原生动物的纤毛中分离出来的,但后来也从海胆精子鞭毛、脑组织和鸡胚细胞等分离出来。微管蛋白由 L. R. Gibbons于 1963年最先提取出来的,由毛利秀雄于 1968年命名的。
组成微管的蛋白质称为微管蛋白。微管蛋白是球形分子, 有两种类型:α微管蛋白(α-tubulin)和β微管蛋白(β-tubulin), 这两种微管蛋白具有相似的三维结构, 能够紧密地结合成二聚体, 作为微管组装的亚基。α亚基由450个氨基酸组成, β亚基是由455个氨基酸组成, 它们的分子量约55kDa。这两种亚基有35~40%的氨基酸序列同源, 表明编码它们的基因可能是由同一原始祖先演变而来。另外, 这两种微管蛋白与细菌中一种叫作FysZ的GTPase(分子量为40kDa)同源, 这种酶
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