
- Trelagliptin succinate
- Alogliptin (SYR-322)
- DPPI 1c hydrochloride
- Trelagliptin
- Sitagliptin phosphate monohydrate
- NVP DPP 728 dihydrochloride
PK 44 phosphateDPP-IV inhibitor |
Sample solution is provided at 25 µL, 10mM.
































Quality Control & MSDS
- View current batch:
- Purity = 98.00%
- COA (Certificate Of Analysis)
- MSDS (Material Safety Data Sheet)
- Datasheet
Chemical structure

Description | PK 44 phosphate is a potent inhibitor of dipeptidyl peptidase IV (DPP-IV) with an IC50 value of 15.8 nM. | |||||
Targets | DPP-IV | |||||
IC50 | 15.8 nM |

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Cas No. | 1017682-65-3 | SDF | Download SDF |
Chemical Name | (R)-3-amino-4-(6,7-difluoro-1H-indazol-3-yl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one phosphate | ||
Canonical SMILES | O=C(N1CC2=NN=C(C(F)(F)F)N2CC1)C[C@H](N)CC3=NNC4=C3C=CC(F)=C4F.O=P(O)(O)O | ||
Formula | C17H16F5N7O.H3PO4 | M.Wt | 527.34 |
Solubility | <52.73mg l="" in="" h2o;="">52.73mg><52.73mg l="" in="" dmso="">52.73mg> | Storage | Store at -20°C |
Physical Appearance | White 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. |
PK 44 phosphateDescription:IC50: 15.8 nm (DPP-IV)The protein encoded by the DPP4 gene is an antigenic enzyme expressed on the surface of most cell types and is associated with immune regulation, signal transduction and apoptosis. Inhibitors of dipeptidyl peptidase 4, also DPP-4 inhibitors or gliptins, are a class of oral hypoglycemics that block DPP-4. They can be used to treat diabetes mellitus type 2 (http://en.wikipedia.org/wiki/Dipeptidyl_peptidase-4_inhibitors). PK 44 phosphate is a potent inhibitor of dipeptidyl peptidase IV (DPP-IV).In vitro: With a potent inhibitor of dipeptidyl peptidase IV (DPP-IV), PK 44 phosphate showed more than 1000-fold selectivity for DPP-IV over DPP-8 and DPP-9 [1]. In vivo: PK 44 phosphate was found to be able to improve glucose tolerance in a mouse oral glucose tolerance assay [1]. Clinical trial: PK 44 phosphate is currently in the preclinical development and no clinical trial is ongoing.Reference:[1] Tozer et al (2010) Indole- and indazole-based inhibitors of dipeptidyl peptidase IV for the treatment of type 2 diabetes. 32nd Annual National Medicinal Chemistry Symposium Poster 52.
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而且保真性要高一点的,因为今后要用来做表达
不过。。。。我时常用那种过期一两年的。。。。也能反转出来。只要你保存得当就可以了。一般是-20以下保存。
TERT是端粒酶逆转录酶
人的端粒酶是由端粒酶逆转录酶、端粒酶RNA和一种假尿嘧啶合成酶组成
在进行RT反应之前,应考虑以下几个方面:
1、RNA
成功的cDNA合成来自高质量的RNA,高质量的RNA至少应保证全长并且不含逆转录酶的抑制剂,如EDTA或SDS。在提取RNA的过程中,要特别防止RNase的污染,同时在逆转录反应中经常加入RNase抑制剂以增加cDNA合成的长度和产量。RNase抑制剂要在第一链cDNA合成反应中,在缓冲液和还原剂(如DTT)存在的条件下加入,因为cDNA合成前的过程会使抑制剂变性,从而释放结合的可以降解RNA的RNase。蛋白RNase抑制剂仅防止RNaseA,B,C对RNA的降解,并不能防止皮肤上的RNase,因此尽管使用了这些抑制剂,也要小心不要从手指上引入RNase,实验过程中经常更换新手套。
2、引物的选择
OligodT
选择OligodT时,要求RNA必须有PolyA,所以真核生物的mRNA都适用。适合长链甚至全长mRNA的RT,所以对RNA样品的质量要求较高,最好不要有明显的DNA污染、RNA降解和RNA断裂。假如想探索新的mRNA进行RT反应,建议推荐使用OligodT引物。使用OligodT引物要比随机引物和特异性引物的稳定性要好。
随机引物
适合各种RNA的RT,尤其适合模板丰度很低的情况(比如某个gene表达量很低)。选择随机引物时,第一链cDNA合成反应中就是以所有的RNA为模板,然后进行PCR反应时设计引物进行特异性扩增。同时要注意随机引物的量和总RNA量之间的关系,一般建议每5μg总RNA的随机引物的用量为50ng,如果每5μg总RNA的随机引物的用量超过250ng,可能会导致小片段产物(<500bp)的增加和长片断、全长产物产物的降低。
特异性引物
特异性引物只能用你设计引物时的下游引物做RT,引物设计质量影响RT的结果,而且不同引物退火温度本来就不相同,所以按照说明书按照一个温度做不是最佳选择,一般不推荐。向左转|向右转

