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Recombinant Mouse IL19, Tag Free

 
Catalog No.
PM2014
重组小鼠白介素19(IL-19)
组合的产品项目
规格价格库存 数量
10ug
¥ 2,860.00
现货
100ug
¥ 10,010.00
现货

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A

背景

白介素19(IL-19)是细胞因子IL-10家族的成员[1]。IL-10家族是细胞因子的第二类α-螺旋集合,包含两个组,一个是病毒同源物,一个是细胞同源物。在细胞同源基因组中,有两个额外的组,一个使用IL-10R2作为信号转导受体(IL-10、IL-22和IL-26),另一个使用IL-20R2作为信号转导受体(IL-19、IL-20和IL-24)[2-4]。小鼠IL-19被合成为一个176个氨基酸(AA)的前体,它包含一个24个氨基酸的信号序列和一个152个氨基酸的成熟区[5]。根据人体研究,它有望以糖基化单体的形式分泌,大小为35-45 kDa[2, 6, 7]。IL-19的不同寻常之处在于它含有七个两亲性螺旋[2, 4, 8]。成熟的小鼠IL-19与成熟的人IL-19的氨基酸序列同源性为69%,与未发表的大鼠和犬IL-19的Genbank序列的同源性分别为85%和68%。虽然小鼠IL-19在人类细胞上是活性的,但人IL-19在小鼠细胞上不是活性的[5]。IL-19的表达仅限于激活的角质形成细胞和单核细胞,可能来自B细胞[6, 9, 10]。IL-19结合由IL-20受体α(也称为IL-20 R1)和IL-20受体β(IL-20 R2)组成的受体复合体[3, 4, 11, 12]。这种受体复合体也被IL-20和IL-24所共享。值得注意的是,据报道,IL-19实际上与IL-20R2结合,后者通常被认为只是信号转导受体亚单位[7, 13]。据报道,在功能上,IL-19可以也不会诱导单核细胞产生IL-6和肿瘤坏死因子[5, 14]。然而,它似乎确实推动T辅助细胞分化为Th2反应,诱导IL-10和自身产生[5, 14]

Reference

[1]. Fickenscher, H. et al. (2002) Trends Immunol. 23:89.

[2]. Pestka, S. et al. (2004) Annu. Rev. Immunol. 22:929.

[3]. Zdanov, (2004) Curr. Pharm. Des. 10:3873.

[4]. Gallagher, G. et al. (2004) Int. Immunopathol. 4:615.

[5]. Laio, Y.-C. et al. (2002) J. Immunol. 169:4288.

[6]. Gallagher, G. et al. (2000) Genes Immun. 1:442.

[7]. Pletnev, S. et al. (2003) Biochemistry 42:12617.

[8]. Chang, C. et al. (2003) J. Biol. Chem. 278:3308.

[9]. Romer, J. et al. (2003) J. Invest. Dermatol. 121:1306.

[10]. Wolk, K. et al. (2002) J. Immunol. 168:5397.

[11]. Dumoutier, L. et al. (2001) J. Immunol. 167:3545.

[12]. Parrish-Novak, J. et al. (2002) J. Biol. Chem. 277:47517

[13]. Preimel, D. and H. Sticht (2004) J. Mol. Model. 10:290.

[14]. Jordan, W.J. et al. (2005) Eur. J. Immunol. 35:1576.

Description

Accession #

Q8CJ70

Alternate Names

IL-10C; IL19; IL-19; interleukin 19; MDA1; melanoma differentiation associated protein-like protein

Source

Human embryonic kidney cell, HEK293-derived mouse IL19 protein

Protein sequence

Leu25-Ala176

M.Wt

17.6 kDa

Appearance

Solution protein

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.

- 12 months from date of receipt, -20 to -70°C as supplied.

Concentration

0. 2 mg/mL

Formulation

Dissolved in sterile PBS buffer.

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. This solution can be diluted into other aqueous buffers.

Biological Activity

The EC50 for this effect is 4-20 pg/mL. Measured in a cell proliferation assay using BaF3 mouse pro-B cells transfected with human IL-20 R alpha and human IL-20 R beta.

Shipping Condition

Shipping with dry ice.

Handling

Centrifuge the vial prior to opening.

Usage

For Research Use Only! Not to be used in humans.

质量控制

质量控制和DataSheet

批次:
    纯度 > 95%, determined by SDS-PAGE.
    Endotoxin: <0.010 EU per 1 ug of the protein by the LAL method.
  • Datasheet