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therascreen BRAF Pyro Kit

基于测序的方法定量检测BRAF基因中癌症相关的突变

S_1084_5_GEN_V2

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therascreen BRAF Pyro Kit (24)

Cat. No. / ID:   971470

For 24 reactions: Sequencing Primers, PCR Primers, Unmethylated Control DNA, PyroMark PCR Master Mix, CoralLoad Concentrate, and therascreen Buffers and Reagents
€2,095.00
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therascreen BRAF Pyro Kit可用于体外诊断。

✓ 全天候自动处理在线订单

✓ 博学专业的产品和技术支持

✓ 快速可靠的(再)订购

特点

  • 符合欧洲体外诊断98/79/EC指令
  • 实时获得多个结果
  • 准确定量癌症相关BRAF基因中的突变
  • 简单说明复杂的序列信息

产品详情

therascreen BRAF Pyro Kit是用于鉴定BRAF基因中突变的分子检测试剂盒。该试剂盒包含扩增BRAF基因所需的引物和试剂,以及在PyroMark Q24实时定量焦磷酸序列分析仪上使用焦磷酸测序技术实时定量检测突变所需的缓冲液、引物和试剂。

绩效

线性

将载有在BRAF基因编码子600上V600E (GTG->GAG)突变的质粒和野生型基因的质粒混合测量其线性(参见"Linearity of V600E mutation")。这些质粒以四种不同的突变比例(5、10、30、50%)混合。每种质粒混合物用三种不同量的therascreen BRAF Pyro Kit使用焦磷酸测序技术进行分析,重复分析三次。

检测5–50%突变范围时,含有5%的容许非线性度的结果是线性的。

精密度

精密度用于检测这些试验的总的差异,对如上所述的质粒混合物进行三个不同水平的分析,每个混合物重复测量三次以获得精密度数据。

重复性(批内和批间差)基于线性测定数据计算得出(用不同的therascreen BRAF Pyro Kit在同一天测定三次)。中间精密度(实验室内部差异)由同一实验室三次检测得出,这三次检测分别由不同的操作者用不同的PyroMark Q24实时定量焦磷酸序列分析仪、以及不同的therascreen BRAF Pyro Kit在不同的三天进行。重现性(实验室之间的差异)由使用不同的therascreen BRAF Pyro Kit在两个不同的实验室分别进行检测得出。

精密度由测得的突变频率的标准偏差(%)表示。在5–50%的突变测量范围内,编码子600上V600E (GTG->GAG)突变检测的重复性、中间精密度和重现性分别为0.6–2.1%、0.7–1.8%、0.8–2.1%。

编码子600上V600E (GTG->GAG)突变的精密度值
% 突变质粒重复性(SD) 中间精密度(SD)重现性(SD)
55.2, 0.6 4.4, 0.7 5.1, 0.8
10 9.1, 1.0 9.6, 1.0 9.6, 1.3
30 28.1, 2.1 27.9, 1.8 28.3, 2.1
50 46.9, 1.2 46.3, 1.5 47.9, 1.7
所有值以%为单位。 SD:标准偏差(n=9)。突变质粒所占百分比(%)通过测量OD260 确定。

原理

therascreen BRAF Pyro Kit用于实时定量检测人BRAF基因编码子600和464–469的突变,在PyroMark Q24实时定量焦磷酸序列分析仪上采用焦磷酸测序技术进行检测。BRAF编码v-raf鼠类肉瘤病毒癌基因homolog B1激酶,一种EGFR下游的原癌基因。研究发现,在所有癌症患者中有6-8%表现出BRAP基因的突变,在黑素瘤(50-60%)、结肠癌(10%)、甲状腺癌(39%)中BRAP基因突变则更为频繁。将近90%是V600E突变。

可检测以下种类的突变:

  • 编码子600:V600A、V600E、V600G和V600M
  • 编码子464–469:G464E、G464V、G466E、G466V、G469A、G469E和G469V

程序

该试剂盒包含2部分实验:一个用于检测编码子600的突变,另一个用于检测编码子464-469的突变(参见"Illustration of the BRAF assay")。运用PCR技术对这两个片段分别进行扩增,测定特定区域的核酸序列。使用该法进行定量和定性分析时,特定区域周围的核酸序列峰被视为标准峰和参照峰。

使用针对编码子600和编码子464-469的引物对两个片段PCR扩增后,将扩增子固定在高性能链霉素亲和琼脂糖上。将单链DNA和相应序列的引物退火处理得到DNA。然后在PyroMark Q24实时定量焦磷酸序列分析仪上设置程序和运行程序对样品进行分析(参见"Pyrogram trace of a normal genotype in codon 600","Pyrogram trace of a normal genotype in codons 464–469"和"Pyrogram trace of a GTG to GAG mutation in base 2 of codon 600")。运行后可以通过调节"Sequence to Analyze"来检测稀有的突变。

应用

therascreen BRAF Pyro Kit用于辅助鉴定黑素瘤和直肠癌,有助于通过选择性抑制BRAF突变来治疗癌症。该试剂盒用于检测人BRAF基因中编码子600和464-469的突变。

可检测以下种类的突变:

  • 编码子600:V600A、V600E、V600G和V600M
  • 编码子464–469:G464E、G464V、G466E、G466V、G469A、G469E和G469V

辅助数据和图表

资源

安全数据表 (1)
Download Safety Data Sheets for QIAGEN product components.
试剂盒操作手册 (1)
分析软件 (1)
BRAF Plug-in 1.3
SOFTWARE (1MB)
Version 1.3.0.7
For use with PyroMark Q24 Software version 2.0.8
软件使用指南 (1)
For installation and use with PyroMark Q24 Instruments and PyroMark Q24 Software version 2.0
Safety Data Sheets (1)
Certificates of Analysis (1)

FAQ

Can I use more than 10ng DNA for the PCR reaction for my therascreen Pyro Kits?
It is not recommended to use more than 10ng for the PCR reaction in the therascreen BRAF, therascreen EGFR, therascreen KRAStherascreen NRAS Pyro, and therascreen UGT1A1 Kits.  Too much DNA can sometimes lead to inhibition problems in the PCR reaction.
FAQ ID -2385
Is V600E the only mutation that can be detected with the therascreen BRAF Pyro Kit codon 600 assay?
No, the V600E is not the only mutation that can be detected with the therascreen BRAF Pyro Kit codon 600 assay.  The sequence to analyze can be changed post-run to allow detection also of V600M (GTG>ATG), V600A (GTG>GCG) and V600G (GTG>GGG).
FAQ ID -2388
Which purification kits are recommended for the therascreen Pyro kits?

 

Which purification kits are recommended for the therascreen Pyro kits?

 

FAQ ID -2386
Can PyroMark Gold reagents be vortexed?
Reconstiuted enzyme and substrate of PyroMark Gold Reagents, should not be vortexed since this could lead to conformational changes which affect the activity.
FAQ ID -2844
What plug-ins are available for the therascreen Pyro kits?

Plug-Ins are available for:


These plug-ins are available for download on the respective catalog page under the Product Resources tab in the Analysis Software section. Note: PyroMark Q24 software version 2.0.7 is needed for the usage of the Plug-ins. 

 

FAQ ID -2387
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