| (R)-(+)-Atenololless active enantiomer of the racemic β1-adrenergic receptor antagonist, (R,S)-atenolol. |

Sample solution is provided at 25 µL, 10mM.
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- View current batch:
- Purity = 98.00%
- COA (Certificate Of Analysis)
- MSDS (Material Safety Data Sheet)
Chemical structure


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| Cas No. | 56715-13-0 | SDF | Download SDF |
| Chemical Name | 4-[(2R)-2-hydroxy-3-[(1-methylethyl)amino]propoxy]-benzeneacetamide | ||
| Canonical SMILES | NC(CC1=CC=C(OC[C@H](O)CNC(C)C)C=C1)=O | ||
| Formula | C14H22N2O3 | M.Wt | 266.3 |
| Solubility | ≤5mg/ml in ethanol;15mg/ml in DMSO;20mg/ml in dimethyl formamide | Storage | Store at -20°C |
| Physical Appearance | A crystalline solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. | ||
(R)-(+)-Atenolol is the less active enantiomer of the racemic β1-adrenergic receptor antagonist, (R, S)-atenolol [1].
Atenolol is a selective β1 receptor antagonist, a drug belonging to the group of beta blockers, a class of drugs used primarily in cardiovascular diseases. Atenolol is used for a number of conditions including hypertension, angina, long QT syndrome, acute myocardial infarction, supraventricular tachycardia, ventricular tachycardia, and the symptoms of alcohol withdrawal. β1-adrenergic receptor is a G-protein coupled receptor associated with the Gs heterotrimeric G-protein and is expressed predominantly in cardiac tissue.
Pharmacokinetic data of the time course of plasma concentrations over 24 h following oral administration of 50 mg (R)-(+)-Atenolol revealed that the Cmax, AUC, and t1/2 values were 326±87 ng/ml, 2599±639 ng×h/ml, and 8.9±2.9 h, respectively [1].
Reference:[1] Stoschitzky K, Egginger G, Zernig G, et al. Stereoselective features of (R)- and (S)-atenolol: clinical pharmacological, pharmacokinetic, and radioligand binding studies[J]. Chirality, 1993, 5(1): 15-19.
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如常用于缓冲的Tris、HEPES、MPOS等等,去垢剂如NP40,Tween-20,TritonX100,CHAPS,脱氧胆酸钠,SDS等等,
大家能说说这些试剂的使用区别吗(最好讲讲某些情况下使用一些会优于另一些的例子)
有时候某些裂解液含10%左右甘油,又是为何?
平时我们用习惯了一些配方,可能有时候不太清楚为何有些是可替代的,有些是不可替代的,借此机会想听听大家的见解?
如要膜蛋白保持原来的结构应采用:非离子型去垢剂.
B.阴离子去垢剂 常见的有十二烷基硫酸钠和十二烷基璜酸钠。前者可促进核蛋白的溶解,将核酸释放出来,并对核酸酶有一定抑制作用,常用于核酸的提取。
C.阳离子去垢剂 如洁尔灭、新洁尔灭、CTAB、CPC、ZEPH、克菌定、消毒净(TMPB)、杜灭芬等,消毒灭菌类居多。
D.天然表面活性剂 又称为生物表面活性剂,包括种类较为广泛,如各种树胶(阿拉伯胶、杏胶、桃胶、果胶)、明胶、皂甙、卵磷脂、豆磷脂、琼脂、海藻酸钠、酪蛋白、胆甾醇、胆酸类、多糖类(如环糊精)等。
E.两性表面活性剂 在碱性水溶液中呈阴离子表面活性剂的性质,起泡性好,去污力也强;在酸性溶液中则呈现阳离子表面活性剂特征,其杀菌性很强。向左转|向右转
我要做的两个目的蛋白,分子量一个是140的,另一个是36,内参用的GAPDH。这几天刚刚要做小鼠组织的蛋白,就把新提取的组织蛋白和之前做过的细胞蛋白一起上了,细胞和组织的各上了3个孔。
电泳转膜孵育等条件都是以前做成熟的
之后显影,细胞蛋白的,两个目的和内参都出得挺好;但是小鼠的组织蛋白只有分子量140的那个显出条带了,36的那个显出来的像一片水渍一样,斑片状的黑,内参有时也这样、有时干脆什么都不显。不知道这是什么原因...按说细胞同样的蛋白做出来,WB的各个步骤应该不会有太大问题的。
有点怀疑蛋白提取的不好,我提组织蛋白的的操作是在冰上进行的,裂解液也加有PMSF,用BCA法测得的蛋白浓度大概也有3~5mg/ml。
在这里求助各位高手~望给我指点一下~不胜感激啊!

