1. 重组蛋白
  2. Immune Checkpoint Proteins CD Antigens
  3. Inhibitory Checkpoint Molecules Macrophage CD Proteins Monocyte CD Proteins Epithelial cell CD Proteins
  4. PD-L1 PD-L1/CD274
  5. PD-L1 蛋白, Human (221a.a, HEK293, Fc)

PD-L1 蛋白, Human (221a.a, HEK293, Fc)

目录号: HY-P70672
产品使用指南

PD-L1 蛋白通过充当 PDCD1/PD-1 的配体、调节 T 细胞激活阈值和限制效应反应来关键调节免疫耐受。它可能作为产生 IL10 的 T 细胞亚群的共刺激分子。PD-L1 蛋白, Human (221a.a, HEK293, Fc) 是重组的 PD-L1 蛋白,由 HEK293 表达,带有 C-hFc 标签。PD-L1 蛋白, Human (221a.a, HEK293, Fc) 全长 221 个氨基酸,分子量为 70-80 kDa。

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描述

The PD-L1 protein critically regulates immune tolerance by acting as a ligand for PDCD1/PD-1, regulating T cell activation threshold, and limiting effector responses. It may act as a costimulatory molecule for IL10-producing T cell subsets. PD-L1 Protein, Human (221a.a, HEK293, Fc) is the recombinant human-derived PD-L1 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of PD-L1 Protein, Human (221a.a, HEK293, Fc) is 221 a.a., with molecular weight of 70-80 kDa.

研究背景

PD-L1 蛋白在诱导和维持自身免疫耐受方面发挥着关键作用,作为抑制性受体 PDCD1/PD-1 的配体,从而调节 T 细胞的激活阈值,最终限制其效应反应。此外,PD-L1 可能作为 T 细胞亚群的共刺激分子,主要通过尚未鉴定的激活受体产生白细胞介素 10 (IL10)。除了作为免疫检查点的作用外,PD-L1 还充当转录共激活因子,在缺氧时易位到细胞核中,并与磷酸化的 STAT3 相互作用,促进 GSDMC 的转录,导致细胞焦亡。PD-L1 与 PDCD1/PD-1 相互作用促进的 PDCD1 介导的抑制途径可抑制细胞毒性 T 淋巴细胞 (CTL) 效应功能,被肿瘤利用来减弱抗肿瘤免疫力并逃避免疫系统破坏。阻断 PDCD1 介导的途径已显示出逆转耗尽的 T 细胞表型和使抗肿瘤反应正常化的希望,为癌症免疫治疗提供了理论依据。

种属

Human

表达系统

HEK293

标签

C-hFc

蛋白编号

Q9NZQ7 (F19-T239)

基因 ID
蛋白结构
N-term
PD-L1 (F19-T239)
Accession # Q9NZQ7
hFc
C-term
同用名
Programmed Cell Death 1 Ligand 1; PD-L1; PDCD1 Ligand 1; Programmed Death Ligand 1; B7 Homolog 1; B7-H1; CD274; B7H1; PDCD1L1; PDCD1LG1; PDL1
氨基酸序列

FTVTVPKDLYVVEYGSNMTIECKFPVEKQLDLAALIVYWEMEDKNIIQFVHGEEDLKVQHSSYRQRARLLKDQLSLGNAALQITDVKLQDAGVYRCMISYGGADYKRITVKVNAPYNKINQRILVVDPVTSEHELTCQAEGYPKAEVIWTSSDHQVLSGKTTTTNSKREEKLFNVTSTLRINTTTNEIFYCTFRRLDPEENHTAELVIPELPLAHPPNERT

分子量

70-80 kDa

纯度

Greater than 95% as determined by reducing SDS-PAGE.

内毒素含量

<1 EU/μg, determined by LAL method.

文件资料
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.

  • 复溶计算器

  • 重组蛋白稀释计算器

  • 比活力计算器

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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PD-L1 Protein, Human (221a.a, HEK293, Fc)
目录号:
HY-P70672
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