重组人ErbB4 / HER4蛋白(ab85602)
Key features and details
- Expression system: Insect cells
- Purity: > 90% Densitometry
- Active: Yes
- Suitable for: Functional Studies, WB, SDS-PAGE
描述
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产品名称
重组人ErbB4 / HER4蛋白
参阅全部 ErbB4 / HER4 蛋白酶 -
生物活性
The Specific activity of ab85602 was determined to be 669 nmol/min/mg.
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纯度
> 90 % Densitometry.
Affinity purified. -
表达系统
Insect cells -
蛋白长度
Protein fragment -
无动物成分
No -
性质
Recombinant -
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种属
Human -
氨基酸
682 to 993
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相关产品
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Substrate reagent
技术指标
Our Abpromise guarantee covers the use of ab85602 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
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应用
Functional Studies
Western blot
SDS-PAGE
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形式
Liquid -
补充说明
ab204877 (Poly (4:1 Glu, Tyr) peptide) can be utilized as a substrate for assessing kinase activity
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Concentration information loading...
制备和贮存
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稳定性和存储
Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.
pH: 7.50
Constituents: 0.0038% EGTA, 0.00174% PMSF, 0.00385% DTT, 0.79% Tris HCl, 0.00292% EDTA, 25% Glycerol (glycerin, glycerine), 0.87% Sodium chlorideThis product is an active protein and may elicit a biological response in vivo, handle with caution.
常规信息
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别名
- 4ICD
- ALS19
- Avian erythroblastic leukemia viral oncogene homolog 4
see all -
功能
Specifically binds and is activated by neuregulins, NRG-2, NRG-3, heparin-binding EGF-like growth factor, betacellulin and NTAK. Interaction with these factors induces cell differentiation. Not activated by EGF, TGF-A, and amphiregulin. The C-terminal fragment (CTF) of isoform JMA-A CYT-2 (containing E4ICD2) can stimulate transcription in the presence of YAP1. ERBB4 intracellular domain is involved in the regulation of cell growth. Conflicting reports are likely due at least in part to the opposing effects of the isoform-specific and nuclear-translocated ERBB4 intracellular domains (E4ICD1 and E4ICD2). Overexpression studies in epithelium show growth inhibition using E4ICD1 and increased proliferation using E4ICD2. E4ICD2 has greater in vitro kinase activity than E4ICD1. The kinase activity is required for the nuclear translocation of E4ICD2. -
组织特异性
Expressed at highest levels in brain, heart, kidney, in addition to skeletal muscle, parathyroid, cerebellum, pituitary, spleen, testis and breast. Lower levels in thymus, lung, salivary gland, and pancreas. Isoform JM-A CYT-1 and isoform JM-B CYT-1 are expressed in cerebellum, but only the isoform JM-B is expressed in the heart. -
序列相似性
Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.
Contains 1 protein kinase domain. -
翻译后修饰
Isoform JM-A CYT-1 and isoform JM-A CYT-2 but not isoform JM-B CYT-1 and isoform JM-B CYT-2 are processed by ADAM17. Proteolytic processing in response to ligand or 12-O-tetradecanoylphorbol-13-acetate stimulation results in the production of 120 kDa soluble receptor forms and intermediate membrane-anchored 80 kDa fragments (m80HER4), which are further processed by a presenilin-dependent gamma-secretase to release the respective cytoplasmic intracellular domain E4ICD (either E4ICD1/s80Cyt1 or E4ICD2/s80Cyt2). Membrane-anchored 80 kDa fragments of the processed isoform JM-A CYT-1 are more readily degraded by the proteasome than fragments of isoform JM-A CYT-2 suggesting a prevalence of E4ICD2 over E4ICD1.
Ligand-binding increases phosphorylation on tyrosine residues. Isoform JM-A CYT-2 is constitutively phosphorylated on tyrosine residues in a ligand-independent manner. E4ICD2 but not E4ICD1 is phosphorylated on tyrosine residues.
Ubiquitinated. The ERBB4 intracellular domain is ubiquitinated and targeted to proteosomal degradation during mitosis mediated by the APC/C complex. Isoform JM-A CYT-1 and isoform JM-B CYT-1 are ubiquitinated by WWP1. The ERBB4 intracellular domain (E4ICD1) is ubiquitinated, and this involves NEDD4. -
细胞定位
Membrane and Nucleus. Following proteolytical processing E4ICD (E4ICD1 or E4ICD2 generated from the respective isoforms) is translocated to the nucleus. Significantly more E4ICD2 than E4ICD1 is found in the nucleus. E4ICD2 colocalizes with YAP1 in the nucleus. - Information by UniProt
图片
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The specific activity of ErbB 4 (ab85602) was determined to be 328 nmol/min/mg as per activity assay protocol and was equivalent to 750 nmol/min/mg as per radiometric assay
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SDS PAGE analysis of ab85602
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SDS PAGE analysis of ab85602
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The Specific activity of ab85602 was determined to be 669 nmol/min/mg.
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SDS-PAGE showing ab85602 at approximately 57kDa.
实验方案
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
数据表及文件
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SDS download
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Datasheet download
文献 (0)
ab85602 尚未被引用在任何文献中。