您好,欢迎来到试剂仪器网! [登录] [免费注册]
试剂仪器网
位置:首页 > 品牌 > Sigma-Aldrich > PTAD-Alkyne

PTAD-Alkyne

品牌
Sigma-Aldrich
CAS
1313211-51-6
货号
794236
包装型号
规格纯度
97%
参考价格
2143.09 *本价格含增值税费
促销
服务
  • 原厂保证
  • 包邮
  • 增值税票
数量
-+
产品名称:
1313211-51-6
PTAD-Alkyne
4-(4-(Prop-2-yn-1-yloxy)phenyl)-1,2,4-triazolidine-3,5-dione
产品介绍:

产品说明

一般描述

PTAD-Alkyne is a selective bioconjugation reagent for the modification of tyrosine residues with a terminal alkyne. Subsequent modification can then be afforded via the copper catalyzed azide/alkyne click chemistry reaction with an azide containing compound or biomolecule. This reagent has been shown to selectively introduce poly(ethylene glycol) or PEG chains onto proteins with surface exposed tyrosine residues. PTAD-Alkyne has also been used in the formation of antibody-drug conjugates. This reagent is compatible with different buffer systems such as PBS, Tris and mixed PBS/Tris buffer (preferred). The linkage with tyrosine has been shown to be stable to pH and temperature extremes as well as blood plasma.

应用

Note: PTAD-Alkyne must be first activated by stirring in a 1:0.98 molar ratio with 1,3-dibromo-5,5-dimethylhydantoin (product # 157902). Activation is evident upon solution color change from colorless to deep red and the activated reagent should be used immediately.

General Procedure for Protein Modification with PTAD.

Part 1: PTAD activation
Mix together 1:0.98 molar equivalents of unactivated PTAD to 1,3-dibromo-5,5-dimethylhydantoin (product # 157902) in organic solvent (preferred solvents are DMF or acetonitrile; avoid using DMSO)
Color change is observed from colorless/pale yellow to deep red (approximately 5 min of mixing).
After the solution turns red, store the now activated reagent on ice and use for protein modification within 30 min.

Part 2: Protein modification
Add protein solution in mixed phosphate/Tris buffer or Tris buffer (pH should be 6 - 9) to the eppendorf tube (or other vial) containing the activated PTAD reagent prepared above and mix gently at room temperature for up to 30 min. Preferably use 10-fold molar excess of reagent relative to protein. Use protein at a minimum concentration of 1 mg/ml (higher concentrations are preferred for enhanced labeling).
Remove excess unreacted PTAD by gel filtration.

包装

500 mg in amber glass bottle

基本信息

经验(实验)分子式C11H9N3O3
分子量231.21
MDL编号MFCD24386394
PubChem化学物质编号329768433
NACRESNA.22

产品性质

质量水平100
测定97%
mp176-181 ℃
储存温度2-8℃
SMILES stringO=C1NNC(=O)N1c2ccc(OCC#C)cc2
InChI1S/C11H9N3O3/c1-2-7-17-9-5-3-8(4-6-9)14-10(15)12-13-11(14)16/h1,3-6H,7H2,(H,12,15)(H,13,16)
InChI keyIHJYYZNVZZKSCU-UHFFFAOYSA-N

安全信息

储存分类代码11 - Combustible Solids
WGKWGK 3
闪点(F)Not applicable
闪点(C)Not applicable

Sigma-Aldrich

推荐产品