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  • 转座子

    转座子

    转座子是细菌细胞里发现的一种复合型转座因子,这种转座因子带有同转座无关的一些基因,如抗药性基因;它的两端就是IS,构成了“左臂”和“右臂”。两个“臂”可以是正向

    2025-04-25 39
  • 人CYP2C9酶联免疫分析

    人CYP2C9酶联免疫分析

    人CYP2C9 酶联免疫分析试剂盒使用说明书本试剂仅供研究使用 目的:本试剂盒用于测定人血清,血浆及相关液体样本中 CYP2C9 的含量。实验原

    2025-04-25 53
  • π键

    π键

    成键原子的未杂化p轨道,通过平行、侧面重叠而形成的共价键,叫做π键。π键是由两个p轨道从侧面重叠而形成的,重叠程度比σ键小,所以π键不如σ键稳定。当形成π键的两

    2025-04-25 45
  • 外显子捕捉

    外显子捕捉

    外显子捕捉(exon trapping) 是构建一种载体,从其插入片段中识别和回收外显子序列,从而克隆目的基因。捕捉外显子的载体pETV—SD是一种反转录病毒穿

    2025-04-25 57
  • 常用贮存液的配制之脱氧核苷三磷酸(dNTP)溶液

    常用贮存液的配制之脱氧核苷三磷酸(dNTP)溶液

    脱氧核苷三磷酸(dNTP)溶液  【配制方法】  把每一种dNTP溶解于水至浓度各为100mmol/L左右,用微量移液器吸取0.05mol/l Tris碱分别调

    2025-04-25 43
  • Protein Identification by MALDI-TOF Mass Spectrometry

    Protein Identification by MALDI-TOF Mass Spectrometry

    MALDI-TOF mass spectrometers are now commonplace and their relative ease of use

    2025-04-25 42
  • 白牡丹(baimudan)

    白牡丹(baimudan)

    花朵形白茶之一。1922年创制于福建省建阳县水吉乡,福鼎、政和、松溪等县及台湾省有少量生产,历来销东南亚各国。白牡丹采用一芽二叶初展嫩梢制成,绿叶夹银白毫心,惊

    2025-04-25 44
  • Surface Plasmon Resonance Mass Spectrometry for Protein Analysis

    Surface Plasmon Resonance Mass Spectrometry for Protein Analysis

    The combination of surface plasmon pesonance (SPR) and mass spectrometry (MS) pr

    2025-04-25 49
  • A Single-Molecule Approach to Visualize the Unwinding Activity of DNA Helicases

    A Single-Molecule Approach to Visualize the Unwinding Activity of DNA Helicases

    Almost all aspects of DNA metabolism involve separation of double-stranded DNA c

    2025-04-25 49
  • Protein Profiling of Human Plasma Samples by Two-Dimensional Electrophoresis

    Protein Profiling of Human Plasma Samples by Two-Dimensional Electrophoresis

    Human plasma is regarded the most complex and well-known clinical specimen that

    2025-04-25 50
  • The Estimation of mRNA Content by Poly(U) Hybridization

    The Estimation of mRNA Content by Poly(U) Hybridization

    The sequence of poly(adenylic) acid, present at the 3′ end of the majority of eu

    2025-04-25 70
  • Promoter analysis by saturation mutagenesis

    Promoter analysis by saturation mutagenesis

    Gene expression and regulation are mediated by DNA sequences, in most instances,

    2025-04-25 46
  • RNA的聚丙烯酰胺凝胶电泳

    RNA的聚丙烯酰胺凝胶电泳

    相关专题 一、原理 核酸(ribonucleicacid,RNA)分子在一定pH值的缓冲液中带有电荷,将其放入电场中,可向与其所带电荷电性相反的电极移动。聚丙

    2025-04-25 50
  • 乙氰菊酯(cycloprothrin)

    乙氰菊酯(cycloprothrin)

    对鱼类等水生生物低毒可用于水田的合成拟除虫菊酯杀虫剂。性能 原药为无色至暗黄色油状粘稠液体。几乎不溶于水,微溶于脂肪烃,易溶于丙酮、芳烃等大多数有机溶剂。对高等

    2025-04-25 58
  • Activation of SAPKs/JNKs and p38s In Vitro

    Activation of SAPKs/JNKs and p38s In Vitro

    The stress-activated protein kinases (SAPKs)/c-Jun N2 -terminal kinases (JNKs) a

    2025-04-25 49