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Positive Control: HeLa treated with 20 ng/mL TNF-alpha and 100nM Calyculin A for 10 minutes cell lysate, NIH/3T3 treated with 20 ng/mL TNF-alpha and 100nM Calyculin A for 10 minutes cell lysate, C6 treated with 100 ng/mL Calyculin A for 1 hours cell lysate, human breast cancer tissue, HeLa cells treated with 20 ng/mL TNF-alpha and 100nM Calyculin A for 10 minutes, NIH/3T3 cells treated with 20 ng/mL TNF-alpha and 100nM Calyculin A for 10 minutes.
Tissue Specificity: Tissue enhanced (bone).
Subcellular Location: Cytoplasm, Nucleus.
Sequence Similarities: 100% Mouse/Rat.
Predicted band size: 36 kDa.
IkB-alpha is a 40 kDa protein that functions to inhibit NF- kappaB activity. The inhibition occurs via protein-protein interaction between I kappaB proteins and NF- kappaB dimers in the cytosol. The interaction of I kappa B-alpha with NF- kappaB masks the nuclear localization sequence of NF- kappaB, preventing NF- kappaB translocation to the nucleus. A variety of stimuli can activate gene expression by liberating NF- kappaB through the degradation of I kappaB alpha. These stimuli include the proinflammatory cytokines TNF- alpha and IL-1 beta, chemokines, PMA, growth factors, LPS, UV irradiation, viral infection, as well as various chemical and physical stresses. In humans, the gene is located on the q arm of chromosome 14. Activation of NFkB requires that IkB be phosphorylated on specific serine residues, which results in targeted degradation of IkB. IkB kinase alpha (IKK alpha), previously designated CHUK, interacts with IkB-alpha and specifically phosphorylates IkB-alpha on the sites that trigger its degradation Serines 32 and 36. IKK alpha appears to be critical for NFkB activation in response to proinflammatory cytokines. Phosphorylation of IkB by IKK alpha is stimulated by the NFkB inducing kinase (NIK), which itself is a central regulator for NFkB activation in response to TNF and IL-1. The functional IKK complex contains three subunits, IKK alpha, IKK beta and IKK gamma, and each appear to make essential contributions to IkB phosphorylation.
仅用于科研。不用于诊断过程。未经明确授权不得转售。
蛋白别名: I(Kappa)B(alpha); I-kappa-B-alpha; I-kappaBalpha; IkappaBalpha; IkB-alpha; IKBalpha; Inhibitor of nuclear factor of kappa light chain gene enhancer in B-cells alpha; Inhibitor of nuclear factor of kappa light chain gene enhancer in B-cells, alpha; Major histocompatibility complex enhancer-binding protein MAD3; NF-kappa-B inhibitor alpha; nuclear factor of kappa light chain gene enhancer in B-cells; nuclear factor of kappa light chain gene enhancer in B-cells inhibitor, alpha; nuclear factor of kappa light polyp gene enhancer in B-cell 1; nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha; RL/IF-1
基因别名: AI462015; IKBA; MAD-3; MAD3; NFKBI; NFKBIA; RL/IF-1
UniProt ID: (Human) P25963, (Rat) Q63746, (Mouse) Q9Z1E3
Entrez Gene ID: (Human) 4792, (Rat) 25493, (Mouse) 18035