Recombinant Human MAPK9 protein (His tag)
Price:
- 表达系统: E.coli
- 蛋白编码: P45984
别称 |
JNK-55;JNK2;JNK2A;JNK2ALPHA;JNK2B;JNK2BETA;p54a;p54aSAPK;PRKM9;SAPK;SAPK1a
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表达系统 |
E.coli
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序列 |
Phe 101-Arg 424
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蛋白编码 |
P45984
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种属 |
Human
|
计算分子量 |
35.5 kDa
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表观分子量 |
41 kDa
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标签 |
N-His & C-His
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纯度 |
> 95 % as determined by reducing SDS-PAGE.
|
内毒素 |
Please contact us for more information.
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保存条件 |
Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80℃. Reconstituted protein solution can be stored at 4-8℃ for 2-7 days. Aliquots of reconstituted samples are stable at < -20℃ for 3 months.
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运输条件 |
This product is provided as lyophilized powder which is shipped with ice packs.
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制剂 |
Lyophilized from sterile PBS, pH 7.4.
Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the printed manual. |
复溶方法 |
Please refer to the printed manual for detailed information.
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背景 |
Mitogen-activated protein kinase 9 (MAPK9), also well known as c-Jun N-terminal kinase (JNK2), is a member of MAP kinase subfamily belonging to the protein kinase superfamily. The crystal structure of human JNK2 complexed with an indazole inhibitor by applying a high-throughput protein engineering and surface-site mutagenesis approach. A novel conformation of the activation loop is observed, which is not compatible with its phosphorylation by upstream kinases. This activation inhibitory conformation of JNK2 is stabilized by the MAP kinase insert that interacts with the activation loop in an induced-fit manner. It suggest that the MAP kinase insert of JNK2 plays a role in the regulation of JNK2 activation, possibly by interacting with intracellular binding partners. JNK2 deficiency leads to reduced c-Jun degradation, thereby augmenting c-Jun levels and cellular proliferation, and suggests that JNK2 is a negative regulator of cellular proliferation in multiple cell types. JNK2 blocks the ubiquitination of tumor suppressor p53, and thus increases the stability of p53 in nonstressed cells. JNK2 negatively regulates antigen-specific CD8+ T cell expansion and effector function, and thus selectively blocking JNK2 in CD8+ T cells may potentially enhance anti-tumor immune response. Lack of JNK2 expression was associated with higher tumor aneuploidy and reduced DNA damage response. Additionally,the JNK2 protein could be a novel therapeutic target in dry eye disease, and may provide a novel target for prevention of vascular disease and atherosclerosis.
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实验操作视频
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