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一般描述
研究领域:细胞信号传导
磷酸甘油酸激酶(PGK)是一种糖酵解酶,可从多种生物体中分离获得。这种典型的铰链弯曲单体酶在三域生物中都很保守。这种酶由单体折叠多肽链构成,可分成两个几乎相同的结构域,每个结构域由两个螺旋链(螺旋链7和14)连接并由一个深裂隙分离。这种排列使该酶具有独特的双叶结构。
磷酸甘油酸激酶(PGK)是一种糖酵解酶,可从多种生物体中分离获得。这种典型的铰链弯曲单体酶在三域生物中都很保守。这种酶由单体折叠多肽链构成,可分成两个几乎相同的结构域,每个结构域由两个螺旋链(螺旋链7和14)连接并由一个深裂隙分离。这种排列使该酶具有独特的双叶结构。
应用
来自面包酵母的′3-磷酸甘油酸磷酸激酶(酿酒酵母)已用于:
- 研究低分子量GTP结合蛋白和甘油醛-3-磷酸脱氢酶的抑制机制
- 偶联法测定纯化兔骨骼肌腺嘌呤二核苷酸(NAD+)-依赖性甘油醛-3-磷酸脱氢酶(GAPDH)的反向活性
- 测定甘油醛-3-磷酸脱氢酶
生化/生理作用
3-磷酸甘油酸磷酸激酶催化磷酸基团从1,3-二磷酸甘油酸到ADP的可逆转移,以生成ATP和3-磷酸甘油酸。 3-磷酸甘油酸磷酸激酶的活性对糖酵解和糖异生作用是必需的。磷酸甘油酸激酶(PGK)通过催化两个产生ATP反应之一的糖酵解途径中发挥着重要的作用。它将1,3-二磷酸甘油酸(1,3BPGA)转化为3-磷酸甘油酸(3PGA)。此外,它还通过催化对峙反应生成1,3BPGA和二磷酸腺苷(ADP)参与糖异生过程。由于其参与除能量代谢之外的许多过程,如发病机制、与核酸的相互作用、肿瘤发生和发展、细胞死亡及病毒复制等,PGK还被称为兼职蛋白质。
单位定义
一个单元将在pH6.9,25℃下每分钟将1.0μmol的1,3-二磷酸甘油酸转化为3-磷酸甘油酸。
外形
3.0 M (NH4)2SO4和 0.04 M 焦磷酸四钠溶液 (pH 8.0) 中的晶体混悬液
分析说明
通过三氯乙酸(TCA)-双缩脲法测定的蛋白质。
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产品编号
说明
价格
警示用语:
Warning
危险声明
危险分类
Eye Irrit. 2
储存分类代码
12 - Non Combustible Liquids
WGK
WGK 2
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
法规信息
常规特殊物品
历史批次信息供参考:
分析证书(COA)
Lot/Batch Number
Tobias Vöpel et al.
PloS one, 7(6), e39418-e39418 (2012-07-05)
The cytosol of a cell is a concentrated milieu of a variety of different molecules, including small molecules (salts and metabolites) and macromolecules such as nucleic acids, polysaccharides, proteins and large macromolecular complexes. Macromolecular crowding in the cytosolic environment is
Yiwei Li et al.
Epigenetics, 7(8), 940-949 (2012-07-19)
The epigenetic regulation of genes has long been recognized as one of the causes of prostate cancer (PCa) development and progression. Recent studies have shown that a number of microRNAs (miRNAs) are also epigenetically regulated in different types of cancers
Tyler J Boone et al.
The Journal of biological chemistry, 287(34), 29035-29044 (2012-07-05)
Phosphoglycerate kinase (PGK), present on the surface of group B streptococcus (GBS), has previously been demonstrated to bind the host proteins actin and plasminogen. The actin and plasminogen binding sites of GBS-PGK were identified using truncated GBS-PGK molecules, followed by
Gergely Agócs et al.
Biophysical journal, 102(12), 2828-2834 (2012-06-28)
Partitioning of polypeptides between protein folding and amyloid formation is of outstanding pathophysiological importance. Using yeast phosphoglycerate kinase as model, here we identify the features of the energy landscape that decide the fate of the protein: folding or amyloidogenesis. Structure
Katarzyna A Broniowska et al.
American journal of physiology. Heart and circulatory physiology, 299(4), H1212-H1219 (2010-08-03)
S-nitrosothiols are nitric oxide (NO)-derived molecules found in biological systems. They have been variously discussed as both NO reservoirs and as major actors in NO-dependent, but cGMP-independent, signal transduction. Although S-nitrosation of specific cysteine residues has been suggested to represent
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Instructions for working with enzymes supplied as ammonium sulfate suspensions
以硫酸铵悬浮液形式提供的酶的使用指南
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