C-jun, proto oncogene human

半岛bd体育手机客户端 说明

生化/生理作用

The transcription factor AP-1 (activator protein-1) is involved in cellular proliferation, transformation and death. AP-1 and nuclear factor B (NF- B) can be specifically targeted to prevent cancer induction in mouse models. AP-1 can be produced by 18 different dimeric combinations of proteins from the Jun (c-Jun, JunB and JunD) and Fos (c-Fos, FosB, Fra-1 and Fra-2) families, including Jun homodimers and Jun-Fos heterodimers. The Jun and Fos proteins contain a basic-region leucine zipper (bZIP) domain, and are capable of binding to other bZIP proteins including those from the ATF, MAF, CNC and C/EBP (CCAAT/enhancer-binding protein) subfamilies (5]) Jun-Jun and Jun-Fos dimers bind with highest affinity to the 12-O-tetradecanoylphorbol-13-acetate (TPA) response element (TRE) [TGA(C/G)TCA], although many other ′AP-1-like sites′ have been reported. Binding to any of these sites can be tissue-specific, or affected by neighboring sequences, and dependent upon interactions with other transcription factors or cofactors. Jun and Fos proteins can also dimerize with other bZIP proteins, allowing them to target other DNA binding sites, such as the cAMP response element (CRE), the antioxidant response elements (ARE), and half-sites composed of half of a TRE site and half of a MAF- or CNC-binding site. In addition, AP-1 proteins can interact with other proteins, including the p65 subunit of NF- B, CBP (CRE-binding-protein-binding protein) (p300), SMAD-3 and -4, and the retinoblastoma protein (see 5 for a more complete list), further increasing the combinatorial potential of Jun and Fos proteins. AP-1 regulates a variety of cellular processes, including proliferation, differentiation and apoptosis, and contributes to both basal and stimulus-activated gene expression. It is activated by growth factors, hormones, stress, cytokines, ROS and ultraviolet radiation Activation occurs both transcriptionally and post-translationally, and is signaled predominantly through the mitogen-activated protein kinase (MAPK) cascade. The combinatorial diversity of AP-1 proteins and other interacting factors appears to influence how specific cell types respond to a stimulus. The growth-promoting activity of c-Jun is mediated by repression of tumor suppressors, as well as up-regulation of positive cell cycle regulators. Mostly, c-Jun is a positive regulator of cell proliferation, whereas JunB has the converse effect.

外形

Clear and colorless frozen liquid solution

制备说明

Use a manual defrost freezer and avoid repeated freeze-thaw cycles. While working, please keep sample on ice.

基本信息

NACRES

NA.26

半岛bd体育手机客户端 性质

生物来源	human
重组	expressed in insect cells
测定	≥80% (SDS-PAGE)
形式	frozen liquid
分子量	~37.5 kDa
包装	pkg of 5 μg
储存条件	avoid repeated freeze/thaw cycles
浓度	250 μg/mL
颜色	clear colorless
NCBI登记号	NM_002228
UniProt登记号	P05412
运输	dry ice
储存温度	?70℃
Gene Information	human ... JUN(3725)

安全信息

储存分类代码	10 - Combustible liquids
WGK	WGK 1
闪点(F)	Not applicable
闪点(C)	Not applicable