4-144-190 Replica firearms and pellet guns. (a) It shall be unlawful for any person to purchase, possess, conceal, use, sell, give away or otherwise transfer, or to engage in the business of selling or to exhibit for sale, a replica firearm, paint pellet or paint pellet gun in the City of Chicago, except as provided in subsection (c) of this ...

白细胞介素 4（IL-4）是主要由活化的 T 淋巴细胞、肥大细胞、嗜碱性粒细胞产生的一种多效性细胞因子。 1982 年 Howard 发现 T 细胞培养上清中有一种促进 B 细胞增殖的因子，起初命名为 B 细胞生长因子 1，也称为 B 细胞刺激因子 1、 T 细胞生长因子 2。 1986 年基因克隆成功，国际统一命名 IL-4。 人 IL-4cDNA 序列有 153 个氨基酸残基前体蛋白，成熟 IL-4 由 24 个氨基酸残基的信号肽裂解产生，基因定位于第 5 号染色体，与 IL-3、IL-5、IL-13 和 GM-CSF 的基因临近。 在氨 …

The interleukin 4 (IL4, IL-4) is a cytokine that induces differentiation of naive helper T cells (T h 0 cells) to T h 2 cells. Upon activation by IL-4, T h 2 cells subsequently produce additional IL-4 in a positive feedback loop. IL-4 is produced primarily by mast cells, T …

白细胞介素-4（白介素-4, Interleukin-4, IL-4）是II型辅助T细胞（Th2细胞）分泌的细胞因子。 白细胞介素-4的生物作用，包括刺激活化 B细胞 和 T细胞 增殖、 CD4+T细胞分化成II型辅助T细胞.

白细胞介素-4（il-4）是一种有效的淋巴样细胞生长因子，可刺激某些 b 细胞和 t 细胞的生长和存活。 重组人 IL-4 是一种 14.9 kDa 的蛋白质，含有 129 个氨基酸残基。

IL-4 recruits and activates IgE-producing B cells (IgE class switching) and enhances IgE-mediated responses by up-regulating IgE receptors on B lymphocytes, mast cells, and basophils. In addition, IL-4 also induces VCAM-1 on vascular endothelium and thus directs the migration of T lymphocytes, monocytes, basophils, and eosinophils to the ...

Recombinant human IL-4 is a high-quality and biologically active cytokine, validated using proprietary IL-4/IL-13 reporter cells. This member of the IL-2/γc superfamily is produced in E. coli and thoroughly purified to remove endotoxins.

Recombinant mouse IL-4 induces the proliferation of mouse CTLL2 cell line in a dose dependent manner. BioLegend’s protein was compared side-by-side to a competitor’s equivalent product. Need larger quantities of this item? IL-4 is a member …

Human IL-4 is synthesized with a 24 aa signal sequence. Alternate splicing generates an isoform with a 16 aa internal deletion. Mature human IL-4 shares 55%, 39% and 43% aa sequence identity with bovine, mouse, and rat IL-4, respectively. Human, mouse, and rat IL-4 are species-specific in their activities (5‑7).

Gibco™ Mouse IL-4 Protein, Catalog # PMC0046. Tested in Western Blot (WB), Immunohistochemistry (IHC), ELISA (ELISA), Control (Ctrl) and Functional Assay (Functional) applications. Supplied as 25 µg purified protein.