1. 重组蛋白
  2. Receptor Proteins
  3. PXR 蛋白, Human

PXR 蛋白, Human

目录号: HY-P701396
产品使用指南

PXR蛋白是一种核受体,作为多功能转录因子,被多种内源性和外源性化合物激活。它调节参与物质代谢和分泌的基因,对利福平、金丝桃素、古古林、colupulone、异黄酮、孕烯醇酮和黄体酮等配体作出反应。PXR 蛋白, Human 是重组的 PXR 蛋白,由 E. coli 表达,不带标签。PXR 蛋白, Human 全长 305 个氨基酸。

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描述

The PXR protein is a nuclear receptor that acts as a multifunctional transcription factor activated by a variety of endogenous and exogenous compounds. It regulates genes involved in the metabolism and secretion of substances, responding to ligands such as rifampicin, hypericin, gugulin, colupulone, isoflavones, pregnenolone and progesterone. PXR Protein, Human is the recombinant human-derived PXR protein, expressed by E. coli , with tag free. The total length of PXR Protein, Human is 305 a.a., .

研究背景

PXR 蛋白是一种核受体,是一种多功能转录因子,可被一系列内源性和外源性化合物激活。它在调节涉及潜在有害物质(包括外源性物质、药物和内源性化合物)的代谢和分泌的多个基因的转录方面发挥着关键作用。由抗生素利福平等各种配体以及金丝桃素、古古脂、colupulone 和异黄酮等植物代谢物激活,对特定配体的反应具有物种特异性。PXR 也会被天然存在的类固醇激活,包括孕烯醇酮和黄体酮。它与 CYP3A4 和 ABCB1/MDR1 等关键基因启动子中的响应元件结合。PXR 与 RXR 联合作用,形成异二聚体并与共激活剂 NCOA1 相互作用。此外,PXR 通过其 NR LBD 结构域与时钟蛋白 CRY1 和 CRY2 进行配体依赖性相互作用,为其调节功能增加了另一层复杂性。

种属

Human

表达系统

E. coli

标签

Tag Free

蛋白编号

O75469 (S130-S434)

基因 ID

8856

蛋白结构
N-term
PXR (S130-S434)
Accession # O75469
C-term
同用名
NR1I2; Nuclear receptor subfamily 1 group I member 2; Orphan nuclear receptor PAR1; Orphan nuclear receptor PXR; Pregnane X receptor; Steroid and xenobiotic receptor; SXR
纯度

Greater than 90% as determined by reducing SDS-PAGE.

内毒素含量

<1 EU/μg, determined by LAL method.

文件资料

PXR Protein, Human 相关分类

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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The reconstitution calculator equation

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration

Volume (to add to vial) = Mass (in vial) ÷ Desired Reconstitution Concentration
= ÷

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start) × 体积 (start) = 浓度 (final) × 体积 (final)
× = ×
C1   V1   C2   V2

The specific activity calculator equation

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)

Specific Activity (Unit/mg) = 106 ÷ Biological Activity (ED50)
Unit/mg = 106 ÷ ng/mL

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PXR Protein, Human
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