- ￥1080 - 36225
- Prospecbio
- 以色列
- pka-200
- 2025年07月11日
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- 详细信息
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- 技术资料
- 保存条件：
for future use below -18°C
- 保质期：
See instructions
- 英文名：
PRKACA
- 库存：
常规产品有备货
- 供应商：
上海经科化学科技有限公司
- CAS号：
无
- 规格：
1ug/5ug/100ug
| 规格： | 1ug | 产品价格： | ￥1080.0 |
|---|---|---|---|
| 规格： | 5ug | 产品价格： | ￥2415.0 |
| 规格： | 100ug | 产品价格： | ￥36225.0 |
CATALOGUE NUMBER
PKA-200
SYNONYMS
DESCRIPTION
SOURCE
FORMULATION
STABILITY
Store at 4°C if entire vial will be used within 2-4 weeks.
Store, frozen at -20°C for longer periods of time.
Avoid multiple freeze-thaw cycles.
UNIT DEFINITION
SPECIFIC ACTIVITY
PURITY
AMINO ACID SEQUENCE
ASSAY CONDITIONS
The assay will be performed in a mixture containing 50mM MOPS (pH7.0), 10mM MgCI2, 0.25 mg/ml bovine serum albumin, 100 IJM Kemptide (peptide substrate), 100 IJM unlabeled ATP mixed with [y_32p] ATP (500-1000 cpm/pmol) and Ca subunit in a final volume of 50 IJI. Reaction is started by addition of the Ca subunit and can be stopped after 5 minutes incubation at 30°C by spotting the reaction mix onto Whatman P-81 filters and soaking the filters four times in 75mM phosphoric acid (10 ml per sample) for at least 5 minutes. After four washing steps rinse filters with ethanol, dry and count.
Roskoski, R., Jr. (1983) Methods Enzymol. 99, 3-6
For the detection of phosphorylation in substrate proteins the phosphotransferase reaction can alternatively be stopped by taking aliquots of the mixture and adding SDS sample buffer. The phosphorylation status of the substrate proteins can subsequently be analysed using SDS PAGE and autoradiography.
Zimmermann, B. (1999) Journal of Biological Chemistry.274, 9, 5370-78.
SAFETY DATA SHEET
SDS
USAGE
ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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文献和实验cAMP-dependent PKA is an ubiquitous serine/threonine protein kinase present in a variety of tissues (e.g. brain, skeletal muscle, heart). The intracellular cAMP level regulates cellular responses by altering the interaction between the catalytic C and regulatory R subunits of PKA. The inactive tetrameric PKA holoenzyme R2C2 is activated when cAMP binds to R2, which dissociates the tetramer to R2 cAMP 4 and two active catalytic subunits. Free Catalytic subunits of PKA can phosphorylate a wide variety of intracellular target proteins. In response to hormone- induced high cAMP levels, PKA phosphorylates glycogen synthetase (inhibition of the enzyme activity) and phosphorylase kinase to block glycogen synthesis. Different isoforms of catalytic and regulatory subunits suggest specific functions. The recombinant PKA catalytic subunit a is a 41kDa protein. The a-isoform is the predominant form with a broad tissue distribution and can be used for in vitro enzymological studies of neural and hormonal signal transduction or to phosphorylate target proteins in vivo including Ion channels, transcriptional activator proteins and regulatory enzymes of glycogen metabolism.
(3 ). PKA is composed of two catalytic (C) and two regulatory (R) subunits and has type I and type II isozymes, with different R subunits, termed RI and RII, interacting with an identical C subunit (1 ). Thus far, four isoforms of R subunits, RIα, RIβ, RIIα
Detection of DNA-Dependent Protein Kinase in Extracts from Human and Rodent Cells
The DNA-dependent protein kinase, DNA-PK, is required for DNA double-strand break repair and V(D)J recombination (1 –3 ). DNA-PK is composed of a large catalytic subunit of approx 460 kDa (DNA-PKcs) and a heterodimeric DNA targeting subunit
又称依赖于cAMP的蛋白激酶A (cyclic-AMP dependent protein kinase A)，是一种结构最简单、生化特性最清楚的蛋白激酶。 PKA全酶分子是由四个亚基组成的四聚体, 其中两个是调节亚基(regulatory subunit, 简称R 亚基)，另两个是催化亚基(catalytic subunit, 简称 C 亚基)。R亚基的相对分子质量为49～55kDa, C亚基的相对分子质量为40kDa,总相对分子质量约为180kDa；全酶没有
技术资料