3-Methyl-L-histidine
(Synonyms: 3-甲基-L-组氨酸) 目录号 : GC31535An amino acid
Cas No.:368-16-1
Sample solution is provided at 25 µL, 10mM.
3-Methyl-L-histidine is an endogenous amino acid and a component of the skeletal muscle proteins actin and myosin.1,2,3 It is released during the catabolism of muscle fibrillar protein and excreted in urine.3 Urinary levels of 3-methyl-L-histidine are decreased in children with protein-energy malnutrition compared with well-nourished control subjects. 3-Methyl-L-histidine has been used as a biomarker of skeletal muscle catabolism.1,2,3
1.Lukaski, H.C., Mendez, J., Buskirk, E.R., et al.Relationship between endogenous 3-methylhistidine excretion and body compositionAm. J. Physiol.240(3)E302-E307(1981) 2.Lowry, S.F., Horowitz, G.D., Jeevanandam, M., et al.Whole-body protein breakdown and 3-methylhistidine excretion during brief fasting, starvation, and intravenous repletion in manAnn. Surg.202(1)21-27(1985) 3.Nagabhushan, V.S., and Narasinga Rao, B.S.Studies on 3-methylhistidine metabolism in children with protein-energy malnutritionAm. J. Clin. Nutr.31(8)1322-1327(1978)
Cas No. | 368-16-1 | SDF | |
别名 | 3-甲基-L-组氨酸 | ||
Canonical SMILES | O=C(O)[C@@H](N)CC1=CN=CN1C | ||
分子式 | C7H11N3O2 | 分子量 | 169.18 |
溶解度 | PBS (pH 7.2): 10 mg/ml | 储存条件 | Store at -20°C |
General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效。 储备液的保存方式和期限:-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。 为了提高溶解度,请将管子加热至37℃,然后在超声波浴中震荡一段时间。 |
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Shipping Condition | 评估样品解决方案:配备蓝冰进行发货。所有其他可用尺寸:配备RT,或根据请求配备蓝冰。 |
制备储备液 | |||
1 mg | 5 mg | 10 mg | |
1 mM | 5.9109 mL | 29.5543 mL | 59.1086 mL |
5 mM | 1.1822 mL | 5.9109 mL | 11.8217 mL |
10 mM | 0.5911 mL | 2.9554 mL | 5.9109 mL |
第一步:请输入基本实验信息(考虑到实验过程中的损耗,建议多配一只动物的药量) | ||||||||||
给药剂量 | mg/kg | 动物平均体重 | g | 每只动物给药体积 | ul | 动物数量 | 只 | |||
第二步:请输入动物体内配方组成(配方适用于不溶于水的药物;不同批次药物配方比例不同,请联系GLPBIO为您提供正确的澄清溶液配方) | ||||||||||
% DMSO % % Tween 80 % saline | ||||||||||
计算重置 |
计算结果:
工作液浓度: mg/ml;
DMSO母液配制方法: mg 药物溶于 μL DMSO溶液(母液浓度 mg/mL,
体内配方配制方法:取 μL DMSO母液,加入 μL PEG300,混匀澄清后加入μL Tween 80,混匀澄清后加入 μL saline,混匀澄清。
1. 首先保证母液是澄清的;
2.
一定要按照顺序依次将溶剂加入,进行下一步操作之前必须保证上一步操作得到的是澄清的溶液,可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet