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  3. SLC46A1 蛋白, Human (Sf9, His, MBP, FLAG)

SLC46A1 蛋白, Human (Sf9, His, MBP, FLAG)

目录号: HY-P702023
产品使用指南

SLC46A1 蛋白是一种质子耦合叶酸同向转运蛋白,利用近端空肠中的 H(+) 梯度来驱动叶酸吸收。它将叶酸从血液输送到脑脊液,并在酸性 pH 条件下表现出交替的向外和向内开放的构象状态。SLC46A1 蛋白, Human (Sf9, His, MBP, FLAG) 是重组的 SLC46A1 蛋白,由 Sf9 insect cells 表达,带有 N-MBP, C-Flag, N-8*His 标签。SLC46A1 蛋白, Human (Sf9, His, MBP, FLAG) 全长 458 个氨基酸。

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描述

The SLC46A1 protein is a proton-coupled folate symporter that utilizes the H(+) gradient in the proximal jejunum to drive folate absorption. It transports folate from the blood to the cerebrospinal fluid and exhibits alternating outward- and inward-open conformational states at acidic pH. SLC46A1 Protein, Human (Sf9, His, MBP, FLAG) is the recombinant human-derived SLC46A1 protein, expressed by Sf9 insect cells , with N-MBP, C-Flag, N-8*His labeled tag. The total length of SLC46A1 Protein, Human (Sf9, His, MBP, FLAG) is 458 a.a., .

研究背景

SLC46A1 蛋白是一种质子耦合叶酸同向转运蛋白,利用 H(+) 梯度作为驱动力,在介导叶酸吸收中发挥关键作用。它主要在近端空肠的刷状缘膜上起作用,促进叶酸的肠道吸收,并有助于叶酸从血液穿过脉络丛转运至脑脊液。在酸性 pH 条件下发挥作用,蛋白质会经历交替的向外和向内开放的构象状态。向外开放状态下残基的质子化启动蛋白质的运输,而叶酸的结合触发细胞外门的关闭,导致向内开放状态并释放质子和叶酸。此外,SLC46A1 通过转运甲氨蝶呤和培美曲塞等抗叶酸药物而展现出多功能性,这些药物广泛用于癌症和自身免疫性疾病的治疗。此外,它作为一种低亲和力、pH 无关的血红素载体蛋白,在血红素运输和增加各种组织(包括视网膜、视网膜色素上皮、海马神经元、肝细胞和肾上皮细胞)的细胞内铁含量方面发挥着至关重要的作用。值得注意的是,存在一种无法介导质子耦合叶酸转运的无活性蛋白质亚型。

种属

Human

表达系统

Sf9 insect cells

标签

N-MBP;C-Flag;N-8*His

蛋白编号

Q96NT5 (E2-P459)

基因 ID

113235

蛋白结构
N-term
8*His-MBP
SLC46A1 (E2-P459)
Accession # Q96NT5
Flag
C-term
同用名
SLC46A1; Proton-coupled folate transporter; G21; Heme carrier protein 1; PCFT/HCP1; Solute carrier family 46 member 1
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

SLC46A1 Protein, Human (Sf9, His, MBP, FLAG) 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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SLC46A1 Protein, Human (Sf9, His, MBP, FLAG)
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HY-P702023
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