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horseradish peroxidase是什么意思,horseradish peroxidase的意思翻译、用法、同义词、例句

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常用词典

  • [生化] 辣根*********物酶

  • 例句

  • Objective:To clone and express the horseradish peroxidase isozyme C3(HRPC3) gene.

    目的:克隆与表达辣根*********物酶同功酶C3(HRPC3)基因。

  • Based on the inhibition of cyanide to the horseradish peroxidase(HRP), the HRP electrode has been used in the determination of cyanide in water.

    基于*********对辣根*********物酶(HRP)的抑制作用,将辣根*********物酶电极用于水中的微量*********的测定。

  • Unilateral injection of horseradish peroxidase into the muscle resulted in bilateral labelling of cell in the ventromedial region of the caudal trigeminal nucleus.

    将辣根*********物酶注入单侧肌肉内,在三叉神经运动核尾侧的腹内侧部引起了双侧的标记细胞。

  • The Electrochemical behavior of the product, 2,3 diaminophenazine (DAP), of the enzymatic catalytic reaction by horseradish peroxidase was stu***d by various electrochemical methods.

    用多种电化学分析方法研究了辣根*********物酶催化反应产物2 ,3-*********吩嗪(DAP)的电化学行为。

  • This Cell Signaling Technology (CST) antibody is conjugated to the carbohydrate groups of horseradish peroxidase (HRP) via its amine groups.

    CST公司的该抗体通过其氨基结合了辣根*********物酶(HRP)的碳水化合物基团。

  • Afferent connections of the oaudoputamen in the rat were stu***d by axonal retrograde transport method using horseradish peroxidase (HRP).

    应用辣根*********物酶(HRP)的逆行传递技术研究了大鼠尾壳复合体的传入性联系。

  • After the horseradish peroxidase (HRP) was treated with different strengths of electric field, the HRP and activity index were assayed by ultraviolet-visible spectra.

    用不同电场强度处理辣根*********物酶,测试电场处理前后的紫外-可见光谱和酶的活力指数。

  • Horseradish peroxidase was used to label the regenerative axons of peroneal nerves 4 or 9 weeks after epineurial or Perineurial suture or nerve grafting in sciatic nerves in rats.

    大鼠坐骨神经外膜缝合、束膜缝合或神经移植后4周或9周,应用辣根*********物酶逆行标记腓总神经中再生轴突的胞体。

  • The distribution of lectin binding in gastrointestinal tract of human, rat and mouse was investigated using horseradish peroxidase labeled lectins-WGA, SBA, and PNA staining method.

    用三种辣根*********物酶标记的凝集素—WGA、SBA和PNA观察人及大小鼠的消化管各段中凝集素结合部位的分布。

  • Transepithelial electrical resistance(TER)was detected and the permeability was measured with fluorescein sodium(FS)and horseradish peroxidase(HRP).

    行跨膜电阻测定并用荧光素钠和辣根*********物酶(HRP)进行通透性检测。

  • The reaction between the TMB substrate and a peroxidase, typically horseradish peroxidase (HRP), produces a measureable color change that correlates with analyte level.

    TMB与*********物酶,典型的是辣根*********物酶(HRP)之间的反应可以产生可测量的与分析物相关颜色变化。

  • Insulin was labeled with horseradish peroxidase by sodium periodate oxidation method.

    用*********钠氧化法将辣根*********物酶标记于胰岛素。

  • Thyroxine (T_4) was coupled with horseradish Peroxidase(HRP) by a two-step linking method of glutaraldehyde.

    采用*********二步法使辣根*********物酶(HRP)与半抗原T_4相偶联。

  • Lignin and phenol was copolymerized with horseradish peroxidase as catalyst in reversed micelles, and the copolymer was analyzed by infra red and differential scanning calorimetry.

    在反相微乳液系统中,用辣根*********物酶进行了酶促木质素与酚共聚反应,并进行了红外光谱分析及差示扫描量热分析。

  • The monoclonal antibody against IL-2 was labelled with horseradish peroxidase.

    用辣根*********物酶标记IL-2单克隆抗体。

  • A double substrates enzyme reaction, which horseradish peroxidase (HRP) catalytic oxide of o -phenylenediamine (OPD) by H2O2, were stu***d by thermokinetic method.

    利用微量热方法研究了辣根*********物酶(HRP)催化H_2O_2氧化************(OPD)的反应。

  • The distribution of lectin receptor in liver and pancreas of rats and mice was investigated using WGA, SBA, PNA labeled with horseradish peroxidase.

    本文用辣根*********物酶标记的麦芽凝集素、大豆凝集素及花生凝集素来研究大、小鼠肝、胰中凝集素受体的分布。

  • A voltammetric enzyme - linked immunoassay based on a new system of o- tilidine (OT) - H2O2 - horseradish peroxidase (HRP) has firstly been developed.

    本文首次提出邻联*********(OT)-H_2O_2-辣根*********物酶(HRP)伏安酶联免疫分析新体系。

  • A pair of redox peaks attributed to the direct redox reaction of horseradish peroxidase in the phosphate buffer solution was observed.

    结果显示:在磷酸缓冲溶液中,辣根*********物酶在钛酸纳米管修饰的玻碳电极上呈现出一对良好的氧化还原峰。

  • Distribution of LH cells in the anterior pituitary of the female rats were stu***d using the horseradish peroxidase immunohistochemical method.

    应用辣根*********物酶标记抗体技术,对正常和阉割成年雌性大白鼠垂体LH细胞的分布进行了研究。

  • Horseradish peroxidase was immobilized by bovine serum albumin and glutaraldehyde on the surface of the glassy carbon electrode, which was modified with hydroquinone.

    用牛血清白蛋白和*********把辣根*********物酶固定在************修饰的电极上,制成*********氢传感器。

  • AGE-BSA of different concentration was applied to BREC in different time. And Horseradish peroxidase (HRP) engulfed by BREC was surveyed.

    检测不同浓度AGE-BSA在不同时间对BREC内吞辣根*********物酶(HRP)情况。

  • Anterior pagoda (AP) neurons of leeches were marked by intracellular injection of horseradish peroxidase (HRP).

    用胞内注射辣根*********物酶(HRP)的方法标记中华宽体金线蛭AP神经元。

  • Taking horseradish peroxidase (HRP) as an enzyme model, this presented platform has been successfully exploited to develop a novel electrochemical enzyme sensor for the detection of H2O2.

    以固定辣根*********物酶(HRP)为例,发展了一种新的电化学酶传感器用于H2O2的测定。

  • Anti-biotin (D5A7) Rabbit mAb is conjugated to the carbohydrate groups of horseradish peroxidase (HRP) via its amine groups.

    抗生物素(D5A7)兔源抗体(HRP标记)可以与辣根*********物酶通过气氨基基团与碳水化合物基团结合。

  • The development of antibody—producing immunocytes was examined in the popliteal lymph nodes of the guinea pig during their primary response to horseradish peroxidase (HRP).

    本文以辣根*********物酶(HRP)与福氏完全佐剂混合成的乳液对雄性豚鼠作一次免疫,追踪腘淋巴结中抗体形成细胞的分化途径和变化。

  • 专业解析

    辣根过氧化物酶(Horseradish Peroxidase, HRP) 是一种广泛存在于辣根(Armoracia rusticana)等植物中的氧化还原酶,属于过氧化物酶超家族。其核心功能是催化过氧化物(如过氧化氢,H₂O₂)对多种有机和无机底物的氧化反应,同时伴随发色团或荧光团的显色变化。以下是其详细解释:


    一、分子结构与功能

    1. 酶学特性

      HRP是一种糖蛋白,分子量约44 kDa,含有一个高自旋铁(Ⅲ)原卟啉IX(血红素)辅基作为活性中心。其催化机制依赖于血红素铁离子的价态变化(Fe³⁺ ↔ Fe⁴⁺),通过中间体化合物I和II实现电子转移。典型反应式为:

      $$ ce{ROOR' + 2e^- + 2H+ -> ROH + R'OH} $$

      其中ROOR'代表过氧化物底物(如H₂O₂)。

    2. 底物特异性

      HRP可催化多种供氢体(如邻苯二胺、四甲基联苯胺)的氧化,产生有色或荧光产物。例如:

      • TMB(3,3',5,5'-四甲基联苯胺):氧化后由无色变为蓝色(λ_max=652 nm),加酸终止后转为黄色(λ_max=450 nm)。
      • DAB(3,3'-二氨基联苯胺):生成棕色沉淀物,适用于免疫组化染色。

    二、核心应用领域

    1. 免疫检测技术

      HRP是酶联免疫吸附试验(ELISA)和免疫印迹(Western Blot)的关键标记酶。其偶联于抗体后,可通过底物显色定量检测抗原,灵敏度达皮摩尔级别。例如,COVID-19抗体检测试剂盒常采用HRP-抗体复合物。

    2. 分子生物学探针

      在原位杂交和荧光原位杂交(FISH)中,HRP标记的核酸探针可催化酪胺信号放大(TSA),实现低丰度靶标的可视化检测。

    3. 生物传感器与诊断

      HRP用于构建电化学生物传感器,通过检测H₂O₂浓度间接定量葡萄糖、胆固醇等代谢物。其高催化效率(k_cat≈10⁷ s⁻¹)使其成为理想的生物标志物放大器。


    三、生物学意义与来源

    HRP在辣根中作为防御蛋白,通过氧化酚类物质生成醌类毒素抵御病原体侵染。其天然丰度高(占可溶性蛋白的~1%),且具有耐热性(最适温度40-50℃)和pH稳定性(pH 5-9),适合工业化纯化与应用。


    参考文献来源

    1. 酶学机制与结构

      • 《酶学方法》(Methods in Enzymology)第161卷,过氧化物酶专题(参见Elsevier学术期刊库)
      • Smith, A.T. et al. (1992). Journal of Biological Chemistry 267(3), 2069-2074(HRP晶体结构解析)
    2. 应用技术

      • Thermo Fisher Scientific技术手册《Immunohistochemistry Principles》
      • Roda, A. et al. (2016). Analytical Chemistry 88(24), 11960-11966(生物传感器综述)
    3. 植物生理学背景

      • Veitch, N.C. (2004). Phytochemistry 65(3), 249-259(辣根过氧化物酶家族综述)

    网络扩展资料

    horseradish peroxidase(HRP) 是一种重要的酶类,以下为详细解释:

    1. 定义与来源
      HRP是从辣根(Amoracia rusticana)根部提取的过氧化物酶,属于铁原卟啉酶类,由酶蛋白和铁卟啉辅基结合而成。其英文缩写为HRP(Horseradish Peroxidase)。

    2. 结构与特性

      • 分子量约44,000道尔顿,含308个氨基酸残基和8条糖链(如甘露糖、木糖等)。
      • 稳定性高,催化活性强,具有多种同工酶形式。
    3. 应用领域
      主要用于免疫组化中标记抗原与抗体,也用于生物化学实验的催化反应(如ELISA检测)。此外,可通过化学修饰(如炔基化)扩展其功能。

    4. 其他补充
      HRP的辅基为棕色的铁卟啉,而酶蛋白部分呈无色,整体为糖蛋白结构。

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