b-Casomorphin (1-3) |
目录号 GP10125 |
Sample solution is provided at 25 µL, 10mM.
Quality Control & SDS
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Purity: >98.00%
- COA (Certificate Of Analysis)
- Datasheet
b-Casomorphin (1-3), (C23H27N3O5), a tri-peptide with the sequence H2N-Tyr-Pro-Phe-OH, MW= 425.48. Casomorphins are peptides derived from the digestion of milk protein casein. The distinguishing characteristic of casomorphins is that they have an opioid effect. The most important casomorphins from bovine milk are those released from the digestion of β-casein into β-casomorphins, sometimes denoted as BCM followed by a numeral indicating the number of amino acids in the sequence. Each variant fits into one of two main categories known as A1 and A2. In cattle, A1-type β-caseins have the amino acid histidine at position 67, whereas the A2-type β-caseins have the amino acid proline at position 67. Laboratory experiments show that the casomorphin known as BCM7 is released only from the A1-type β-caseins[1]. The potential release of BCM7 is about 0.4 grams per litre of milk (assuming as above that there are 12g of β-casein per litre).Human digestion may break down casomorphins into inactive dipeptides by the enzyme dipeptidyl peptidase-4[2]. This enzyme is found in the digestive tract and in some endocrine cells. Casein has been documented to break down in the stomach to produce the peptide casomorphin (above stated that "Human digestion may break down casomorphins into inactive dipeptides by the enzyme dipeptidyl peptidase-4"), an opioid that acts as a histamine releaser[3].
References:
1. Jinsmaa Y, Yoshikawa M, 1999; "Enzymatic release of neocasomorphin and beta-casomorphinfrom bovine beta-casein"; Peptides 20:957-962
2. Converse PJ, Hamosh A, McKusickVA(2005). DIPEPTIDYL PEPTIDASE IV; DPP4. Online Mendelian Inheritance inMan.
3. Kurek M, Przybilla B, Hermann K, Ring J (1992). "A naturally occurring opioid peptide from cow's milk, beta-casomorphine-7, is a direct histamine releaser in man". Int Arch Allergy Immunol 97 (2): 115–120.g.
Cas No. | 72122-59-9 | SDF | |
别名 | H2N-Tyr-Pro-Phe-OH | ||
化学名 | 2-[[1-[2-amino-3-(4-hydroxyphenyl)propanoyl]pyrrolidine-2-carbonyl]amino]-3-phenylpropanoic acid | ||
Canonical SMILES | C1CC(N(C1)C(=O)C(CC2=CC=C(C=C2)O)N)C(=O)NC(CC3=CC=CC=C3)C(=O)O | ||
分子式 | C23H27N3O5 | 分子量 | 425.48 |
溶解度 | ≥ 42.5mg/mL in DMSO | 储存条件 | Store at -20°C |
General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while. | ||
Shipping Condition | Evaluation sample solution : ship with blue ice All other available size: ship with RT , or blue ice upon request |
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 % ddH2O | ||||||||||
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 ddH2O,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。