General description
L-氨基酸氧化酶(LAAO)是一种黄素蛋白,分子量为130 kDa。它由两个大约70 kDa的不同亚基组成。全酶的每个分子都有两个黄素腺嘌呤二核苷酸(FAD)分子。LAAO是一种糖蛋白,含有大约2-5%的碳水化合物,包括唾液酸。最适pH约为7.5。除微生物和动物组织外,它还存在于许多蛇毒液中,尤其是在肾脏中。在N-末端区域,它有一个带谷氨酸残基的βαβ结构域。LAAO使毒液呈黄色。
Application
来自响尾蛇的L-氨基酸氧化酶已被用于定量测定亚胺脱氨酶活性中的rid 蛋白质。
L-氨基酸氧化酶 (LAAO) 可用于将L-氨基酸转化为相应的α-酮酸。来自Sigma的L-氨基酸氧化酶已被用于亮氨酸氨基肽酶(LAP)活性测定。该酶为固定化酶,可用于化学发光检测酶促流动注射方法中进行L-丙氨酸的现场测定。
Biochem/physiol Actions
来自响尾蛇的L-氨基酸氧化酶(LAAO)需要Mg2 +才能激活。N末端区域对于FAD的结合是必不可少的。通过LAAO的氧化反应生成的 H2O2可防止血小板聚集,并引起水肿和细胞凋亡。乙二胺四乙酸(EDTA)和苯甲基磺酰氟(PMSF)可抑制LAAO的活性。
Preparation Note
溶于 1 mg/mL 浓度的水中,形成澄清溶液。
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 1 Inhalation - Acute Tox. 2 Dermal - Acute Tox. 2 Oral
存储类别
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
法规信息
低风险生物材料
动植物源性产品
此项目有
Characterization of L-amino Acid Oxidase Derived from Crotalus adamanteus Venom: Procoagulant and Anticoagulant Activities
Nielsen VG
International Journal of Molecular Sciences, 20(19), 4853-4853 (2019)
The venom-gland transcriptome of the eastern diamondback rattlesnake (Crotalus adamanteus)
Rokyta DR, et al.
BMC Genomics, 13(1), 312-312 (2012)
Glycerol-induced development of catalytically active conformation of Crotalus adamanteus L-amino acid oxidase in vitro
Raibekas AA and Massey V
Proceedings of the National Academy of Sciences of the USA, 93(15), 7546-7551 (1996)
Alba Martín-Barreiro et al.
Analytical and bioanalytical chemistry, 414(8), 2641-2649 (2022-01-23)
An enzymatic-colorimetric method has been developed based on the reaction between L-phenylalanine (L-Phe) and the L-amino acid oxidase (LAAO) in the presence of Au(III), which has led to the formation of gold nanoparticles. The intensity of the localized surface plasmon
Members of the Rid protein family have broad imine deaminase activity and can accelerate the Pseudomonas aeruginosa D-arginine dehydrogenase (DauA) reaction in vitro
Hodge-Hanson KMand Downs DM
PLoS ONE, 12(9), e0185544-e0185544 (2017)
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