DBCO-PEG-NHS DBCO聚乙二醇活性酯 修飾性衍生物 Ponsure

產(chǎn)品名稱：   DBCO PEG活性脂   DBCO-PEG-NHS

商品型號：   PS2-HDB

英文名：     DBCO-PEG-NHS

數(shù)量：     現(xiàn)貨或一周

保質(zhì)期：    一年以上

保存條件     -20℃

規(guī)格：      1g、5g、10g，大包裝另尋

詳細(xì)信息：

取代率：90%以上

分散系數(shù)：小于等于1.05

常規(guī)分子量：2K、3.4K、5K

結(jié)構(gòu)式： 

物理性質(zhì)：

狀態(tài)：淡黃色到白色固體，或者半固體，取決于分子量。

溶解性：溶于水，CHCl3，DMSO等溶劑。

保持條件：-20℃長期保存，避光，干燥。

注意事項：取用一定要干燥，避免頻繁的溶解和凍干。

應(yīng)用簡介：

Dibenzocycolctyne (DBCO) PEG NHS derivatives can go Click Chemistry reaction without a need of any metal catalysts. The strain-promoted 1,3-dipolar cycloaddition of cyclooctynes and azides, also termed as the Cu-free click reaction, is a bioorthogonal reaction that enables the conjugation of two molecules in aqueous solution. DBCO PEG derivatives possess fast kinetics and stability in aqueous buffer. DBCO reagents can be used to label azide-modified biomolecules spontaneous without the need for toxic Cu catalysts. PEGylation can increase solubility and stability and reduce immunogenicity of peptides and proteins. It can also suppress the non-specific binding of charged molecules to the modified surfaces.

Copper-free Click reaction procedures:

Prepare the azide-containing reagents in reaction buffer.

Add DBCO reagents to azide containing reagents. Add 1 mol equivalent of limiting reagent to 1.5~3.0 mol equivalents of abundance reagent.

Incubate the reaction at room temperature for 2~4 hours or 2~12 hours at 4℃.

Purify conjugates either by dialysis or size-exclusion chromatograph.

MPEG-DBCO

DBCO-PEG-NH2

DBCO-PEG-COOH

DBCO-PEG-NHS

DBCO-PEG-SH

DBCO-PEG-ACRL

DBCO-PEG-ACA

DBCO-PEG-DSPE

DBCO-PEG-FITC

DBCO-PEG-RB

DBCO-PEG-MAL

DBCO-PEG-FA

DBCO-PEG-BIOTIN

DBCO-PEG-OH

DBCO-PEG-OPSS

LA-PEG-DBCO

DBCO-PEG-NHS DBCO聚乙二醇活性酯 修飾性衍生物 Ponsure