推荐产品
产品名称
硒-L-蛋氨酸, ≥98% (TLC), powder
质量水平
方案
≥98% (TLC)
表单
powder
颜色
white to off-white
溶解性
H2O: 50 mg/mL
储存温度
−20°C
SMILES字符串
C[Se]CC[C@H](N)C(O)=O
InChI
1S/C5H11NO2Se/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1
InChI key
RJFAYQIBOAGBLC-BYPYZUCNSA-N
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一般描述
L-硒代蛋氨酸(SeMet)是硒的有机形式,存在于耐金属贪铜菌中。
应用
L-硒代蛋氨酸可用于:
- 用于日本青鳉胚胎的毒性研究
- 研究其对怀孕长尾猕猴硒状态指标的影响(食蟹猴)
- 为单波长反常色散(SAD)相位标记蛋白质
硒-L-蛋氨酸已用于:
- 作为处理日本青鳉鱼胚胎的非化学应激源
- 标记蛋白质,用于单波长异常色散(SAD)定相
- 研究硒-L-蛋氨酸对 4T1 小鼠乳腺癌的分布和抑制作用
生化/生理作用
L-硒代蛋氨酸(SeMet)能够抑制特应性皮炎(AD)样皮损。它还能抑制总免疫球蛋白E (IgE)和白介素4 (IL-4)的表达。它可通过饮食被鱼类吸收,因此会造成生态毒性。
硒-L-蛋氨酸显示出抗氧化活性,并且已表明能增加内皮细胞中谷胱甘肽过氧化物酶的活性。 谷胱甘肽过氧化物酶保护细胞免受氧化损伤,例如DNA 链断裂、突变和基于蛋白酪氨酸的信号传导的干扰,以及由于过量亚硝酸盐引起的3-硝基酪氨酸形成的其他蛋白质功能。向癌细胞系(MCF-7/S 乳腺癌,DU-145 前列腺癌细胞和UACC-375 黑素瘤)给予硒-L-甲硫氨酸处理,导致细胞凋亡和异常有丝分裂。这些人肿瘤细胞系在微摩尔范围(45至130μM)内表现出硒代蛋氨酸的剂量依赖性生长抑制,而正常成纤维细胞的生长抑制需要 1mM 硒代蛋氨酸。
警示用语:
Danger
危险分类
Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - STOT RE 2
储存分类代码
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 3
闪点(°F)
250.3 - 346.3 °F
闪点(°C)
121.3 - 174.6 °C
历史批次信息供参考:
分析证书(COA)
Lot/Batch Number
Arka Chakraborty et al.
Nucleic acids research, 45(2), 951-967 (2016-12-03)
The mitochondrial genome (mtDNA) is assembled into nucleo-protein structures termed nucleoids and maintained differently compared to nuclear DNA, the involved molecular basis remaining poorly understood. In yeast (Saccharomyces cerevisiae), mtDNA is a ∼80 kbp linear molecule and Abf2p, a double
H Sies et al.
Zeitschrift fur Naturforschung. C, Journal of biosciences, 53(3-4), 228-232 (1998-06-10)
Cellular defense against excessive peroxynitrite generation is required to protect against DNA strand-breaks and mutations and against interference with protein tyrosine-based signaling and other protein functions due to formation of 3-nitrotyrosine. We recently demonstrated a role of selenium-containing enzymes catalyzing
Seleno-L-methionine is the predominant organic form of selenium in Cupriavidus metallidurans CH34 exposed to selenite or selenate
Avoscan L, et al.
Applied and Environmental Microbiology, 72(9), 6414-6416 (2006)
A protocol to retain weakly interacting protein complexes for structural studies using an appropriate linker
Chichili VPR, et al.
Protocol Exchange (2013)
Distribution and inhibition effect of Seleno-L-Methionine on 4T1 mouse mammary carcinoma.
Song H
International Journal of Physiology, Pathophysiology and Pharmacology, 7(2), 76-86 (2015)
商品
Antioxidants protect biological systems from oxidative damage produced by oxygen-containing free radicals and from redoxactive transition metal ions such as iron, copper, and cadmium.
抗氧化剂可保护生物系统免受含氧自由基和氧化还原过渡金属离子(如铁、铜和镉)引起的氧化损伤。
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