详细描述: Cell adhesion molecules (CAMs) are a family of closely related, cell surface glycoproteins that are involved in cell-cell interactions and are thought to play an important role in embryogenesis and development. HCAM, also known as CD44, LHR, MDU2, MDU3, M
详细描述: The discs large (dlg) tumor suppressor gene was first identified in Drosophila through genetic analysis of germline mutations. Several mammalian homologs were subsequently identified and categorized into a protein family designated MAGUK (membrane-associa
For 100 x 50 µl multiplex PCR reactions: 2x QIAGEN Multiplex PCR Master Mix (providing a final concentration of 3 mM MgCl2, 3 x 0.85 ml), 5x Q-Solution (1 x 2.0 ml), RNase-Free Water (2 x 1.7 ml)
Cat No./ID: 206145
QIAGEN Multiplex PCR Kit (1000)
For 1000 x 50 µl multiplex PCR reactions: 2x QIAGEN Multiplex PCR Master Mix (providing a final concentration of 3 mM MgCl2, 1 x 25 ml), 5x Q-Solution (1 x 10 ml), RNase-Free Water (1 x 20 ml)
高亲和力Omniscript Reverse Transcriptase (RT)在RT-PCR中具有高特异性和高灵敏度,即使是低拷贝转录(参见”Sensitive RT-PCR of ≥10 copies”),无需调整温度或反应条件即可通读复杂的RNA二级结构(参见”Comparison of various reverse transcriptases”)。
For 50 reverse-transcription reactions: 200 units Omniscript Reverse Transcriptase, 150 µl 10x Buffer RT, 100 µl dNTP Mix (contains 5 mM each dNTP), 1.1 ml RNase-free water
Cat No./ID: 205113
Omniscript RT Kit (200)
For 200 reverse-transcription reactions: 800 units Omniscript Reverse Transcriptase, 4 x 150 µl 10x Buffer RT, 4 x 100 µl dNTP Mix (contains 5 mM each dNTP), 4 x 1.1 ml RNase-free water
QuantiTect SYBR Green PCR Kit使用SYBR Green I通过两步法real-time RT-PCR对cDNA目标序列进行高特异性的定量检测。热启动和独特的实时定量PCR缓冲液确保了对cDNA目标序列高特异性和灵敏度的real-time定量检测。dNTP混合液含有dUTP,可选择性进行UNG处理。为便于使用,预混液可储存在2–8°C。
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特异性定量检测。
在Rotor-Gene 3000上使用针对人BAX的QuantiTect Primer Assay和指定的试剂盒分析稀释的人白细胞cDNA。熔解曲线分析中出现单峰,NTC反应呈平直曲线,说明使用QuantiTect Kit和Assay可实现高特异性定量。NTC:无模板对照。Norm. Fluoro.:标准化的荧光。
Performance
QuantiTect SYBR Green PCR Kit在宽泛的范围内符合线性规律,可实现特异性定量检测(参见”Specific quantification over a wide linear range”)。与其他聚合酶相比,HotStarTaq DNA Polymerase具有严格的热启动,进一步提高了PCR反应的特异性。独特的PCR缓冲液和HotStarTaq DNA Polymerase,确保低丰度转录本的定量检测,低至5个拷贝的目标序列也可被准确检测(参见”Highly specific amplification”)。QuantiTect SYBR Green PCR Kit与QuantiTect Reverse Transcription Kit和QuantiTect Primer Assays配合使用,可获得灵敏、可靠的结果(参见”Specific and sensitive quantification”)。
QuantiTect SYBR Green PCR +UNG Kit中经特别优化的UNG溶液配合经验证的PCR预混液可有效避免PCR产物中的残留污染,并对靶序列进行可靠的定量检测(参见”High specificity in real-time PCR”)。
Principle
QuantiTect SYBR Green PCR Kit含有优化的即用型预混液,可使用SYBR Green I对cDNA靶序列进行高特异性和灵敏度的real-time定量分析。预混液中的荧光染料SYBR Green I可对很多不同的靶序列进行分析,无需合成靶标特异性标记引物。独特的PCR缓冲液含有K+和NH4+,能促使特异性引物退火,获得高PCR特异性和灵敏度(参见”Specific primer annealing”)。此外,HotStarTaq DNA Polymerase具有严格的热启动,可防止非特异性产物的形成。
QuantiTect SYBR Green PCR预混液含有dUTP,可在PCR前使用尿嘧啶DNA糖基化酶 (UNG)预处理,保证之前反应残留的PCR产物会影响后续的PCR反应。
2x QuantiTect SYBR Green PCR Kit的组份
组份
特点
优势
HotStarTaq DNA Polymerase
95ºC孵育15分钟即可活化
室温下即可构建qPCR反应体系
QuantiTect SYBR Green PCR Buffer
NH4+和K+的平衡组合
特异性引物退火确保PCR结果可靠
dNTP mix
含有dUTP,会部分替代dTTP,可进行UNG处理
可选择进行UNG处理,以消除之前反应残留的PCR产物
SYBR Green I dye
DNA双链结合时,生成强烈的荧光信号
高度灵敏的定量检测
ROX dye
在Applied Biosystems或Agilent的PCR仪上进行荧光信号校准
可在需要ROX染料的PCR仪上进行准确的定量检测。不会干扰其他real-time PCR仪
Procedure
QuantiTect SYBR Green PCR Kit无需进行繁琐耗时的反应条件优化。只需简单地将引物、探针和cDNA模板加入到即用型PCR预混液中,即可开始反应(参见”Two-step RT-PCR”)。使用操作手册中的实验方案可在任何real-time PCR仪上得到快速、可靠的结果。如果需要,反应液可用尿嘧啶DNA糖基化酶(UNG)预处理,以去除之前反应残留的PCR产物。
QuantiTect SYBR Green PCR Kit配合QuantiTect Primer Assays可在基因表达分析中获得高度特异性的结果。基因组范围、生物信息学验证的引物对覆盖所有人类、小鼠、大鼠和其他各类生物基因。QuantiTect Primer Assays可在GeneGlobe上方便地订购。
详细描述: The discs large (dlg) tumor suppressor gene was first identified in Drosophila through genetic analysis of germline mutations. Several mammalian homologs were subsequently identified and categorized into a protein family designated MAGUK (membrane-associa
QuantiTect SYBR Green PCR Kit使用SYBR Green I通过两步法real-time RT-PCR对cDNA目标序列进行高特异性的定量检测。热启动和独特的实时定量PCR缓冲液确保了对cDNA目标序列高特异性和灵敏度的real-time定量检测。dNTP混合液含有dUTP,可选择性进行UNG处理。为便于使用,预混液可储存在2–8°C。
qiagen 204143实时定量PCR试剂盒
特异性定量检测。
在Rotor-Gene 3000上使用针对人BAX的QuantiTect Primer Assay和指定的试剂盒分析稀释的人白细胞cDNA。熔解曲线分析中出现单峰,NTC反应呈平直曲线,说明使用QuantiTect Kit和Assay可实现高特异性定量。NTC:无模板对照。Norm. Fluoro.:标准化的荧光。
at No./ID: 204141
QuantiTect SYBR Green PCR Kit (40)
Trial kit for 40 x 50 µl reactions: 1 ml 2x QuantiTect SYBR Green PCR Master Mix, 2 ml RNase-Free Water
Cat No./ID: 204143
QuantiTect SYBR Green PCR Kit (200)
For 200x 50 µl reactions: 3 x 1.7 ml 2x QuantiTect SYBR Green PCR Master Mix, 2 x 2 ml RNase-Free Water
Cat No./ID: 204145
QuantiTect SYBR Green PCR Kit (1000)
For 1000 x 50 µl reactions: 25 ml 2x QuantiTect SYBR Green PCR Master Mix, 20 ml RNase-Free Water
Cat No./ID: 204163
QuantiTect SYBR Green PCR +UNG Kit (200)
For 200 x 50 µl reactions: 3 x 1.7 ml 2x QuantiTect SYBR Green PCR Master Mix, 100 µl UNG Solution, 2 x 2 ml
不同于抗体介导的方法,HotStarTaq DNA Polymerase应用化学介导的热启动,可确保聚合酶在PCR初始加热阶段完全没有活性。HotStarTaq DNA Polymerase提供独特的QIAGEN PCR Buffer,将非特异性扩增产物、引物二聚体和其他污染降至zui低。一种新型的添加剂Q-Solution,可实现难扩增的模板(如GC含量高的模板)高效扩增。
QIAGEN 203203聚合酶HotStarTaq DNA Polymerase
不同于抗体介导的方法,HotStarTaq DNA Polymerase应用化学介导的热启动,可确保聚合酶在PCR初始加热阶段完全没有活性。HotStarTaq DNA Polymerase提供独特的QIAGEN PCR Buffer,将非特异性扩增产物、引物二聚体和其他污染降至zui低。一种新型的添加剂Q-Solution,可实现难扩增的模板(如GC含量高的模板)高效扩增。
QIAGEN RNase-Free DNase Set保证无RNA酶、经严格质控和优化,配合RNeasy操作流程和QIAamp RNA Blood Mini操作流程使用。一般来说,使用RNeasy Kits纯化RNA时,不需要DNA酶消化步骤,因为硅胶膜离心柱技术可有效地去除大部分DNA,而无需DNA酶处理。然而,某些RNA应用对痕量DNA非常敏感,因此需要彻底去除DNA。QIAGEN RNase-Free DNase Set中提供RDD缓冲液,经优化可用于柱上DNA酶消化。该缓冲液也非常适合于溶液中高效DNA酶消化。在使用RNeasy试剂盒和QIAamp RNA Blood Mini Kit从细胞和组织中纯化RNA的过程中,QIAGEN RNase-Free DNase Set提供高效的柱上DNA消化。后续的洗涤步骤可将DNA酶高效去除。当使用RNeasy 96 试剂盒过程中需要DNA酶处理时,请QIAGEN Technical Services或当地经销商获取专门优化的实验方案。QIAGEN RNase-Free DNase Set是以稳定的、冻干粉酶形式提供。QIAGEN RNase-Free DNase Set提供1500 Kunitz units。1 Kunitz units是指在25°C、pH 5.0条件下,以高度聚合的DNA为底物,使每毫升底物的A260值每分钟升高0.001时所需要的DNase I的量(Kunitz, M. [1950] Crystalline desoxyribonuclease. I. Isolation and general properties, spectrophotometric method for the measurement of desoxyribonuclease activity. II. Digestion of thymus nucleic acid (desoxyribonucleic acid): the kinetics of the reaction. J. Gen. Physiol. 33, 349 and 363)。
订购信息:
Cat No./ID: 79254
RNase-Free DNase Set (50)
1500 Kunitz units RNase-free DNase I, RNase-free Buffer RDD, and RNase-free water for 50 RNA minipreps
RNAlater Stabilization Reagent可稳定和保护在收集和储存样本时的RNA表达谱(参见”RNAlater Reagent prevents degradation of mRNA in tissues”)。RNAlater技术对RNA的立即保护,可确保下游分析真实地反映整个组织的表达谱(参见”RNAlater TissueProtect Tubes prevent RNA changes in tissues”)。样本可长期保存,无RNA降解风险,甚至经多次冻融后也无影响。在从多种条件下保存的RNAlater稳定样本中纯化得到的RNA,适用于northern印迹和RT-PCR等下游应用(参见”Stable RNA in tissues: different temperatures and freeze–thaw cycles”)。
详细描述: The discs large (dlg) tumor suppressor gene was first identified in Drosophila through genetic analysis of germline mutations. Several mammalian homologs were subsequently identified and categorized into a protein family designated MAGUK (membrane-associa