{{'Search' | translate}}
 

Empty gel cassettes, mini, 1.0 mm

空胶凝体盒

公司名称: Thermo Fisher Scientific
产品编号: NC2010
Bio-protocol()
Company-protocol()
Other protocol()

Analysis of Starch Synthase Activities in Wheat Grains using Native-PAGE
Author:
Date:
2016-01-20
[Abstract]  Starch synthases are one class of key enzymes involving in the synthesis of cereal starch, which transfer glucose from ADP-glucose to the non-reducing end of pre-existing α-(1-4)-liked glucosyl chains of amylopectin. This protocol is highly reproducible for assaying activities for starch synthase I and IIIa in wheat and barley endosperm at qualitative level and quantitative level. The protocol includes separating proteins isolated from developing endosperm with native-PAGE containing glycogen from oyster, incubating protein gels with ADP-glucose solution, and staining gels with iodine ... [摘要]  淀粉合酶是涉及谷物淀粉合成的一类关键酶,其将葡萄糖从ADP-葡萄糖转移到预先存在的支链淀粉的α-(1-4) - 葡萄糖基链的非还原端。 这个协议是高度可重复的测定淀粉合成酶I和IIIa在小麦和大麦胚乳的定性水平和定量水平的活动。 该方案包括从发育的胚乳分离的蛋白质与来自牡蛎的含有糖原的天然PAGE,用ADP-葡萄糖溶液孵育蛋白质凝胶,并用碘溶液染色凝胶。 该方法允许研究人员比较淀粉合酶活性的水平或变化。

Separation and Detection of Phosphorylated and Nonphosphorylated BvgA, a Bordetella pertussis Response Regulator, in vivo and in vitro
Author:
Date:
2013-11-20
[Abstract]  Protein phosphorylation plays a central role in signal transduction in bacteria. However, separation and detection of the phosphorylated protein from its nonphosphorylated form remain challenging. Here we describe a method to detect phosphorylation of the Bordetella pertussis response regulator BvgA, which is phosphorylated at an aspartate residue (Boulanger et al., 2013). This method is based on the proprietary adduct, Phos-tagTM, a dinuclear metal complex, which together with Zn2+ or Mn2+, forms a complex with a phosphomonoesterdianion, ... [摘要]  蛋白质磷酸化在细菌的信号转导中起着中心作用。然而,从其非磷酸化形式分离和检测磷酸化蛋白仍然是挑战性的。在这里我们描述了检测百日咳博德特氏菌响应调节剂BvgA的磷酸化的方法,其在天冬氨酸残基被磷酸化(Boulanger等人,2013)。该方法基于专有的加合物Phos-tag TM sup/TM,其是双核金属络​​合物,其与Zn 2+或Mn 2+反应, ,与磷酸二酯酶形成复合物,例如应答调节剂的磷酸化天冬氨酸(Barbieri和Stock,2008; Kinoshita和Kinoshita-Kikuta,2011)。对于体内检测,在4℃下在轻度甲酸中裂解百日咳细胞以使磷酸 - 天冬氨酸键的破坏最小化,并且通过包含Phos标签的电泳(SDS-PAGE)将磷酸化的BvgA从其非磷酸化形式分离> TM 。随后通过蛋白质印迹分析检测两种形式的BvgA。还容易实现在体外用乙酰磷酸盐处理后形成的磷酸化BvgA的水平的量化。因此,该技术允许容易地评估B中BvgA磷酸化的水平。百日咳和 。大肠杆菌在不同实验室条件下在体内或在不同反应条件下在体外磷酸化后(本研究部分由NIH的Intramural Research Programme支持, NIDDK)。

产品评论