XCell SureLock™ 小型槽
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XCell <i>SureLock</i>&trade; 小型槽
Invitrogen™

XCell SureLock™ 小型槽

The XCell SureLock Mini-Cell is a vertical mini-protein gel electrophoresis system compatible with all Invitrogen mini precast gels and Surecast了解更多信息
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货号数量
EI00011 unit
货号 EI0001
价格(CNY)
6,947.00
Each
添加至购物车
数量:
1 unit
价格(CNY)
6,947.00
Each
添加至购物车
The XCell SureLock Mini-Cell is a vertical mini-protein gel electrophoresis system compatible with all Invitrogen mini precast gels and Surecast handcast gels. The Mini-Cell is simple, sturdy, and easy to use. Rather than using clamps, the system incorporates the use of a gel tension wedge to make setup quick and convenient.

How the system works
The XCell SureLock Mini-Cell holds gels firmly with a simple gel tension wedge. When the lever on the gel tension wedge is pushed forward into the locked position, an even, horizontal force is generated. This seals the gel/buffer core assembly firmly into position in the lower buffer chamber. The positive locking action of the gel tension wedge ensures a trouble-free, leak-free gel run every time.

The XCell SureLock Mini-Cell can be used for wet transfers using the XCell II Blot Module. The XCell II Blot Module is used in place of the gel/buffer core assembly. It requires less than 200 mL of transfer buffer for western, southern, and northern transfers. Tough platinized titanium and stainless steel electrodes create a uniform electrical field without clamps or hinged gel holders. Maximum blot size is 9 cm x 9 cm.
仅供科研使用。不可用于诊断程序。
规格
数量1 unit
运输条件室温
容量多达 2 块小型凝胶
适用于(设备)XCell SureLock™ 小型
凝胶兼容性Novex™ 小型胶、NuPAGE™ 凝胶
凝胶尺寸微型 (8 cm x 8 cm)
最大电压500 V dc
产品线XCell SureLock
类型Mini-Cell 小型垂直电泳系统
Unit SizeEach
内容与储存
在室温下储存。自购买之日起享受一年质保。

常见问题解答 (FAQ)

我正在以恒定电压进行Tris-甘氨酸凝胶转印,但电流读数高于预期起始电流。可能因为什么?

电流异常升高的最常见原因是转膜缓冲液。如果转膜缓冲液浓度太高,会导致电导率增加和电流升高。如果不小心用Tris-HCl代替了转膜缓冲液所需的Tris base,也会导致高电流。Tris-HCl可使缓冲液pH降低,引起电导率和电流升高,从而导致过热。我们建议检查转膜缓冲液及其试剂成分,然后重新稀释或重新配制缓冲液。

我将蛋白质置于Tris-甘氨酸凝胶上在非变性条件下进行电泳。蛋白质的pI高于Tris-甘氨酸转膜缓冲液的pH。你们建议如何对蛋白质进行转印?

•将Tris-甘氨酸转膜缓冲液的pH增加至9.2,可使pl低于9.2的所有蛋白质朝阳极方向迁移。
•使用Tris-甘氨酸转膜缓冲液,并在凝胶两侧各放一张膜。碱性高于转膜缓冲液pH的蛋白质,将被凝胶阴极侧的膜捕获。随后,可以用相同的方式处理两张膜。
•转印前,将凝胶置于含0.1% SDS的Tris-甘氨酸转膜缓冲液中孵育15分钟。少量的SDS会给予蛋白质足够的电荷,使蛋白质朝阳极端单向移动,并且在大部分情况下不会使蛋白质变性。然后,使用常规Tris-甘氨酸转膜缓冲液进行转印。

我在对NuPAGE凝胶上的大分子蛋白质进行转印时遇到问题。你们有何建议?

对于大于100 kDa的蛋白质,我们建议在组装三明治前,将凝胶置于含有0.02-0.04% SDS的2XNuPAGE转膜缓冲液(无甲醇)中预平衡10分钟,然后使用含甲醇和0.01%SDS的1XNuPAGE转膜缓冲液进行转印。

转印后,为什么膜上出现空白的点?

以下是可能原因和解决方案:

•凝胶与膜之间存在气泡,阻碍了蛋白质转印。应确保用玻璃吸管滚过膜表面,除去凝胶与膜之间的所有气泡。
•使用了过期或有折痕的膜。应使用新的、无破损的膜。

我在蛋白质转印后发现膜上的条带呈扩散状和旋涡状。可能原因是什么?

条带呈旋涡状和扩散状通常是因为分子在与膜结合前发生了横向移动。以下是可能原因和解决方案:

- 凝胶与膜接触不良:凝胶应与膜通过毛细管作用粘在一起,因此,应使用玻璃吸管滚过凝胶/膜三明治的每一层表明,使凝胶与膜良好接触。在组装三明治时,使用一次性吸管在每一层多加一点转膜缓冲液,也有助于凝胶与膜的接触。此外,应完全浸透海绵垫(戴上手套,将海绵垫置于转膜缓冲液中并向下压,挤出所有气泡)。
- 对凝胶的压力不足:凝胶/膜三明治必须牢固装在两部分印迹模块之间。尝试多加一个海绵垫或将失去弹性的海绵垫换成新的。
- 过度挤压凝胶:过度挤压的一个明显表现是凝胶过于扁平。在三明治被过度挤压的情况下,应适当移除海绵垫,降低对凝胶和膜施加的过多压力即可合拢转膜模块。

注意:未压缩海绵垫的高度应比密封垫片高0.5–1.0 cm。

引用和文献 (11)

引用和文献
Abstract
Enzymatic hydrolysis of pyridoxine-5'-beta-D-glucoside is catalyzed by intestinal lactase-phlorizin hydrolase.
Authors: Mackey Amy D; Henderson George N; Gregory Jesse F 3rd;
Journal:J Biol Chem
PubMed ID:12023280
'An obligatory step in the mammalian nutritional utilization of pyridoxine-5''-beta-D-glucoside (PNG) is the intestinal hydrolysis of its beta-glucosidic bond that releases pyridoxine (PN). This laboratory previously reported the purification and partial characterization of a novel cytosolic enzyme, designated PNG hydrolase, which hydrolyzed PNG. An investigation of the subcellular distribution of ... More
Definition of genetically distinct attenuation mechanisms in naturally virulence-attenuated Listeria monocytogenes by comparative cell culture and molecular characterization.
Authors:Roberts A, Chan Y, Wiedmann M,
Journal:Appl Environ Microbiol
PubMed ID:16000803
'Listeria monocytogenes is a foodborne pathogen able to cause serious disease in humans and animals. Not all isolates are equally pathogenic, however, and several isolates have been characterized as naturally virulence attenuated. We sought to identify the genetic basis of natural virulence attenuation using cell culture assays and molecular techniques. ... More
Combined effect of epinephrine and exercise on calpain/calpastatin and cathepsin B and L activity in porcine longissimus muscle.
Authors:Ertbjerg P, Henckel P, Karlsson A, Larsen LM, Møller AJ,
Journal:J Anim Sci
PubMed ID:10492449
The objective of the study was to improve the understanding of the relationship between the effect of epinephrine plus exercise and meat tenderness. The calpain, calpastatin, and cathepsin B + L activities and postmortem proteolysis in porcine longissimus muscle were studied. The muscle glycogen stores were depleted in five pigs ... More
Apolipoprotein A-I is a selective target for myeloperoxidase-catalyzed oxidation and functional impairment in subjects with cardiovascular disease.
Authors:Zheng L, Nukuna B, Brennan ML, Sun M, Goormastic M, Settle M, Schmitt D, Fu X, Thomson L, Fox PL, Ischiropoulos H, Smith JD, Kinter M, Hazen SL,
Journal:J Clin Invest
PubMed ID:15314690
In recent studies we demonstrated that systemic levels of protein-bound nitrotyrosine (NO(2)Tyr) and myeloperoxidase (MPO), a protein that catalyzes generation of nitrating oxidants, serve as independent predictors of atherosclerotic risk, burden, and incident cardiac events. We now show both that apolipoprotein A-I (apoA-I), the primary protein constituent of HDL, is ... More
Regulation of the mitogen-activated protein kinase p44 ERK activity during anoxia/recovery in rainbow trout hypodermal fibroblasts.
Authors:Ossum CG, Wulff T, Hoffmann EK,
Journal:J Exp Biol
PubMed ID:16621957
It is well known from various mammalian cells that anoxia has a major impact on the mitogen-activated protein kinase ERK, but a possible similar effect in fish cells has not been investigated. Here we characterise a p44ERK-like protein in the rainbow trout cell line RTHDF and study the effect of ... More