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- 详细信息
- 文献和实验
- 技术资料
- 保存条件:
在零下15度以下保存, 避免光照
- 保质期:
2年
- 英文名:
DABCYL-DBCO
- 库存:
现货
- 供应商:
AAT Bioquest
- 规格:
5 mg
淬灭剂DABCYL-DBCO
| 货号 | 2010 | 存储条件 | f/l |
| 规格 | 5 mg | ||
| Ex (nm) | Em (nm) | ||
| 分子量 | 527.63 | 溶剂 | DMSO |
| 产品详细介绍 | |||
简要概述
产品基本信息
货号:2010
产品名称:淬灭剂DABCYL-DBCO
规格:5mg
储存条件:-15℃避光防潮
保质期:12个月
产品物理化学光谱特性
分子量:527.63
溶剂:DMSO
产品介绍
DABCYL是用于制备各种基于FRET的核酸探针和蛋白酶底物的最常见的淬灭剂之一。它是一种吸收来自荧光团的激发能并将其作为热量消散的物质。当它和荧光团紧密靠近时,例如在分子或蛋白质中,荧光团的发射受到抑制。此效应可用于研究分子的几何形状和运动。DABCYL-DBCO是通过基于DBCO的点击化学开发FRET探针,该化学是最著名的应变促进叠氮化物-炔烃环加成反应(SPAAC)之一。百萤生物是AAT Bioquest的中国代理商,为您提供优质的淬灭剂DABCYL-DBCO。
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-3 由于NED,VIC,PET等荧光素的专利归Perkin Elmer公司所有,所以我们推荐以下可替代的荧光素: 实验中常用的淬灭基团: 使用无荧光的淬灭基团可以提高实时定量PCR、多重PCR、FRET实验中的灵敏度。Dabcyl – Dark Quencher 400–550 nm 分子信标推荐使用Dabcyl淬灭基团。它在抑制蓝色至绿色发射光谱的各种荧光染料时非常有效,但是不适合淬灭发射光谱大于480nm的荧光素。 淬灭范围:400-550 nm
)茎杆序列中G和C的含量不能太高5’-端的第一个碱基最好不要选择G由于被测对象DNA或RNA是大分子,存在扭曲现象,因此要选择被测对象的外围碱基序列,即容易接近的那段序列来设计信标。荧光猝灭依赖的是能量共振转移,而转移的效率与荧光基团发射光谱同猝灭基团激发光谱的完全重叠有关。为了荧光能有效猝灭,荧光基团的发射光谱应完全覆盖猝灭基团激发光谱。符合此要求且较常用的荧光剂-淬灭剂有:EDANS(5′- (2′-氨乙基氨基奈-1-磺酸)和DABCYL(4′-(4′-二甲基氨基叠氮苯) 苯甲酸 6-荧
Cy3.5 588 604 实验中常用的淬灭基团 使用无荧光的淬灭基团可以提高实时定量PCR、多重PCR、FRET实验中的灵敏度。 Dabcyl – Dark Quencher 400–550 nm 分子信标推荐使用Dabcyl淬灭基团。它在抑制蓝色至绿色发射光谱的各种荧光染料时非常有效,但是不适合淬灭发射光谱大于480nm的荧
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