type
Grade VI
form
lyophilized powder
ATPase activity
≥200 units/mg protein
secondary activity
≤15 % of base activity ADPase
mol wt
~49 kDa by gel filtration
composition
Protein, 30-60%
solubility
H2O: soluble 1.0 mg/mL
foreign activity
Acid Phosphatase ≤2% of base activity
storage temp.
−20°C
Quality Level
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General description
Apyrase也称为ATP-二磷酸水解酶,在各种各样的动植物组织中都有表达。从马铃薯块茎中分离出可商用的腺苷三磷酸双磷酸酶。
Application
不同种类的马铃薯(S. tuberosum)中存在至少2种同工酶:一种的ATP酶/ADP酶比例较高(∼10)和另一种较低(∼1)。
反应:ATP → ADP+Pi → AMP+2Pi。
反应:ATP → ADP+Pi → AMP+2Pi。
来自马铃薯的过磷酸酶可用于:
- 消解ATP
- 降解内源性细胞外ATP
- 作为柠檬酸右旋糖溶液的补充剂,用于处理取自麻醉小鼠的血液
腺苷三磷酸双磷酸酶可用于水解核苷三磷酸和二磷酸。对于有机二和三磷酸的水解,最佳pH为6,对于无机底物,最佳pH为5.1。来自Sigma的Apyrase已用于血小板聚集的抑制研究 。
Biochem/physiol Actions
在存在二价阳离子的情况下,磷酸酯酶可以水解三磷酸和二磷酸核苷的磷酸酐键。它对核苷酸具有广泛的底物特异性。该酶的这种特性使其适用于不同的生物技术应用,包括DNA测序和血小板聚集抑制。Apyrase具有腺苷5′-三磷酸酶(ATPase)和腺苷5′-二磷酸酶(ADPase)活性。
在所有真核生物和一些原核生物中都发现了腺苷三磷酸双磷酸酶。 来自马铃薯的腺苷三磷酸双磷酸酶在调节生长和发育中起着至关重要的作用。 Apyrase可参与神经刺激后突触ATP(作为神经递质)的失活,以及抑制ADP诱导的血小板聚集,以防止血栓形成 。 其活性需要二价金属离子,并且使用5mM的钙离子观察到最佳的活性。
Packaging
按 ATP 酶单位销售。
Physical form
部分纯化的冻干粉,含琥珀酸钾缓冲盐。
Preparation Note
来源于土豆
Other Notes
在pH 6.5,30℃条件下,一个单位可在每分钟从ATP或ADP中释放1.0μmole无机磷酸盐。
该等级具有非常高的ATP酶/ADPase比率。
signalword
Danger
hcodes
pcodes
Hazard Classifications
Resp. Sens. 1
存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
法规信息
低风险生物材料
此项目有
Stefan Golfier et al.
eLife, 9 (2020-05-13)
Loop extrusion by structural maintenance of chromosomes (SMC) complexes has been proposed as a mechanism to organize chromatin in interphase and metaphase. However, the requirements for chromatin organization in these cell cycle phases are different, and it is unknown whether
Surfactant inhibits ATP-induced release of interleukin-1beta via nicotinic acetylcholine receptors
Backhaus S, et al.
Journal of Lipid Research, 58(6), 1055-1066 (2017)
Micromanipulation studies of chromatin fibers in Xenopus egg extracts reveal ATP-dependent chromatin assembly dynamics
Yan J, et al.
Molecular Biology of the Cell, 18(2), 464-474 (2007)
Methylotrophic yeast Pichia pastoris as a host for production of ATP-diphosphohydrolase (apyrase) from potato tubers (Solanum tuberosum).
Nourizad N, et al.
Protein Expression and Purification, 27(2), 229-237 (2003)
Alexandra L Chang-Graham et al.
Science (New York, N.Y.), 370(6519) (2020-11-21)
Rotavirus causes severe diarrheal disease in children by broadly dysregulating intestinal homeostasis. However, the underlying mechanism(s) of rotavirus-induced dysregulation remains unclear. We found that rotavirus-infected cells produce paracrine signals that manifested as intercellular calcium waves (ICWs), observed in cell lines
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