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Desthiobiotin是一種單環(huán)的、無硫的生物素，它與鏈霉素結(jié)合，具有幾乎相同的特異性，但與生物素(Kd = 1011和1015M)相比，其親和力更小。因此，在與自由生物素競爭驅(qū)替的溫和條件下，可以很容易地、特別地從鏈霉毒素親和樹脂中分離出脫硫生物素。在生物樣品的下拉實(shí)驗(yàn)中，desthiobiotin的軟釋放特性也有助于減少內(nèi)源性生物素化分子的共提純，這些分子在游離生物素的目標(biāo)蛋白復(fù)合物的洗脫作用下仍與鏈球菌肽結(jié)合。

分子量	311.34
分子式	C14H21N3O5
CAS	80750-24-9
溶解度	DMSO, DMF
含量	>95%
外觀	白色固體
儲(chǔ)存	-20C
運(yùn)輸	環(huán)境溫度

Desthiobiotin is a single-ring, sulfur-free analog of biotin that binds to streptavidin with nearly equal specificity but less affinity than biotin (K_d = 10¹¹ vs. 10¹⁵M, respectively). Consequently, desthiobiotinylated proteins can be eluted readily and specifically from streptavidin affinity resin using mild conditions based on competitive displacement with free biotin. For pull-down experiments with biological samples, this soft-release characteristic of desthiobiotin also helps to minimize co-purification of endogenous biotinylated molecules, which remain bound to streptavidin upon elution of the target protein complexes with free biotin.

Molecular weight	311.34
Chemical composition	C14H21N3O5
CAS	80750-24-9
Solubility	DMSO, DMF
Purity	>95%
Appearance	White solid
Storage conditions	-20C
Shipping conditions	Ambient temperature

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DBCO Reagents

Amine Reactive

DBCO-C6-NHS Ester

• DBCO-NHS Ester
• DBCO-Sulfo-NHS Ester
• DBCO-PEG4-NHS Ester
• DBCO-PEG5-NHS Ester
• DBCO-PEG13-NHS Ester
• PC DBCO-NHS Ester
• DBCO-C6-Acid
• DBCO-Acid
• DBCO-PEG5-Acid

Carboxyl/Carbonyl Reactive

• DBCO-Amine
• DBCO-PEG4-Amine
• Sulfo DBCO-PEG4-Amine
• Sulfo DBCO-Amine

 Sulfhydryl Reactive

• Sulfo DBCO-Maleimide

DBCO-Maleimide

• Sulfo DBCO-PEG4-Maleimide
• DBCO-PEG4-Maleimide
• Bis-sulfone-PEG4-DBCO
• ThioLinker-DBCO

Fluorescent Probes

• MB 532 DBCO

MB 488 DBCO

• MB 543 DBCO
• MB 594 DBCO
• Carboxyrhodamine 110 DBCO
• TAMRA DBCO
• Cy3 DBCO
• Cy5 DBCO
• Cy5.5 DBCO
• Cy7 DBCO

 Biotinylation Reagents

• DBCO-PEG4-Biotin

WS DBCO-Biotin

• DBCO-PEG4-Desthiobiotin
• Dde Biotin-DBCO
• PC DBCO-Biotin
• WS PC DBCO-Biotin
• Diazo Biotin-DBCO

PEGylation Reagents

• DBCO-mPEG, 5 kDa

DBCO-mPEG, 10 kDa

• DBCO-mPEG, 20 kDa
• DBCO-mPEG, 30 kDa

 Bifunctional Crosslinkers

• Methyltetrazine-DBCO

Methyltetrazine-PEG12-DBCO

• DBCO-PEG4-DBCO
• TCO-PEG12-DBCO

 Miscellaneous Reagents

• DBCO-PEG4-Hydroxyl

西安凱新生物科技有限公司是國內(nèi)的功能化PEG修飾納米金及納米金棒的供應(yīng)商，我們可以提供多達(dá)十幾種的活性基團(tuán)及各種不同的蛋白分子或聚合物。我公司能和PEG通過雙硫鍵偶連的Gold Nanorods的LSPR從600nm-1000nm不等，我們偶連的PEG末端帶有功能活性基團(tuán)可以和NH2，MAL，COOH，SH，NHS活化連接不同的蛋白或分子。

 

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