THPTA ligand
(Synonyms: 三(3-羟丙基三唑甲基)胺) 目录号 : GC59051三(3-羟丙基三唑甲基)胺(THPTA) ligand是一种水溶性配体。
Cas No.:760952-88-3
Sample solution is provided at 25 µL, 10mM.
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- Purity: >97.00%
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使用THPTA用铜催化炔叠氮化学标记活细胞的方法[1]: |
1. Jurkat细胞在含有10%胎牛血清、1%谷氨酰胺和1% penstrep(含或不含10 μM Ac4ManNAz)的RPMI培养基中生长。 2. 使用无酶Hank’s培养基细胞解离缓冲液收集细胞,以5×106 cells /mL的浓度分成200 μL,分布在96孔V底微滴板的孔中,成球(1500 g, 3 min),用200 μL标记缓冲液DPBS洗涤2次。 3. 在单独的96孔板上,将预先混合好的CuSO4和THPTA以1:5的摩尔比加入到4℃含 biotin alkyne 3(终浓度50 μM)和氨基胍(终浓度1 mM)的DPBS中。 4. 加入新鲜配制的抗坏血酸钠原液(100 mM, 2.5 μL),使抗坏血酸终浓度为2.5 mM,在冰上孵育60 min后加入细胞。 5. 4℃孵育5 min后,用含有1 mM EDTA pH 8.0、25 mM HEPES pH 7.5和1%胎牛血清的DPBS缓冲液洗涤细胞2次,在室温下用2% (v/v)甲醛在DPBS中固定10 min,在含有FITC链亲和素(1:250稀释)的同一缓冲液中重悬20 min。 This protocol only provides a guideline, and should be modified according to your specific needs. |
References: [1]. Hong V, Steinmetz NF,et,al. Labeling live cells by copper-catalyzed alkyne--azide click chemistry. Bioconjug Chem. 2010 Oct 20;21(10):1912-6. doi: 10.1021/bc100272z. PMID: 20886827; PMCID: PMC3014321. |
Trihydroxypropyl triazole amine (THPTA) is a water-soluble ligand[1]. In the presence of copper ions, THPTA ligand can be used for Cu2+-catalyzed alkyne-azide cyclization (CuAAC), and the formed copper complexes can accelerate the CuAAC process[2-3]. The CuAAC with the participation of THPTA ligand is not only suitable for the modification of hydrophilic polymers and biological coupling of polypeptides containing an azide group[4-5], but also for the rapid labeling of azide or alkyne labels absorbed by metabolic metabolism on the cell surface[6-7]. THPTA ligand can efficiently label living cells and maintain cell activity. Its labeling reaction usually takes only 15-30 minutes to complete at room temperature, and the ligand-CuSO4 complex can still maintain its original activity after at least one month of storage under freezing conditions.
THPTA serves both to accelerate the CuAAC reaction and to protect the cells from damage by oxidative agents produced by the Cu-catalyzed reduction of oxygen by ascorbate in mammalian cells[7].
References:
[1]. Chan TR, Hilgraf R, et,al. Polytriazoles as copper(I)-stabilizing ligands in catalysis. Org Lett. 2004 Aug 19;6(17):2853-5. doi: 10.1021/ol0493094. PMID: 15330631.
[2]. Hong V, Presolski SI, et,al. Analysis and optimization of copper-catalyzed azide-alkyne cycloaddition for bioconjugation. Angew Chem Int Ed Engl. 2009;48(52):9879-83. doi: 10.1002/anie.200905087. PMID: 19943299; PMCID: PMC3410708.
[3]. Rao H, Tanpure AA, et,al. Enzymatic incorporation of an azide-modified UTP analog into oligoribonucleotides for post-transcriptional chemical functionalization. Nat Protoc. 2012 May 10;7(6):1097-112. doi: 10.1038/nprot.2012.046. PMID: 22576108.
[4]. Manzenrieder F, Luxenhofer R, et,al. Stabilization of virus-like particles with poly(2-oxazoline)s. Angew Chem Int Ed Engl. 2011 Mar 7;50(11):2601-5. doi: 10.1002/anie.201006134. Epub 2011 Jan 20. PMID: 21370346; PMCID: PMC3574789.
[5]. Kemal Arda Günay, et,al. Synthesis of cyclic peptide disulfide–PHPMA conjugates via sequential active ester aminolysis and CuAAC coupling11Electronic supplementary information (ESI) available. See DOI: 10.1039/c5py01817j,Polymer Chemistry,Volume 7, Issue 4,2016,Pages 970-978,ISSN 1759-9954,
[6]. Kennedy DC, et,al. Cellular consequences of copper complexes used to catalyze bioorthogonal click reactions. J Am Chem Soc. 2011 Nov 9;133(44):17993-8001. doi: 10.1021/ja2083027. Epub 2011 Oct 19. PMID: 21970470.
[7]. Hong V, Steinmetz NF, et,al. Labeling live cells by copper-catalyzed alkyne--azide click chemistry. Bioconjug Chem. 2010 Oct 20;21(10):1912-6. doi: 10.1021/bc100272z. PMID: 20886827; PMCID: PMC3014321.
三(3-羟丙基三唑甲基)胺(THPTA) ligand是一种水溶性配体[1]。在铜离子存在的条件下,THPTA ligand可用于Cu2+催化的炔烃-叠氮化物环化反应(CuAAC),并且形成的铜配合物可以加速CuAAC进程[2-3]。THPTA ligand的参与的CuAAC不仅适用于亲水性聚合物的修饰和含一个叠氮基的多肽的生物偶联[4-5],还可用于细胞表面代谢吸收的叠氮或炔烃标签的快速标记[6-7]。THPTA ligand 可以高效标记活细胞,并维持细胞活性。它的标记反应在室温下往往只需要15-30分钟即可完成,在冷冻条件下储存,配体-CuSO4 复合物在至少一个月后仍能保持原有的活性。
Cas No. | 760952-88-3 | SDF | |
别名 | 三(3-羟丙基三唑甲基)胺 | ||
分子式 | C18H30N10O3 | 分子量 | 434.5 |
溶解度 | DMSO : 100 mg/mL (230.15 mM; Need ultrasonic) | 储存条件 | Store at -20°C, protect from light |
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 | 2.3015 mL | 11.5075 mL | 23.015 mL |
5 mM | 0.4603 mL | 2.3015 mL | 4.603 mL |
10 mM | 0.2301 mL | 1.1507 mL | 2.3015 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。