产品信息

蛋白质全称	核因子NF-κB p105亚基
别名	DNA binding factor KBF1, EBP 1, KBF1, NF kappa B, NFKB p105, NFKB p50, NFKB1, NFKB1,p105, NFKB1,p105,p50, nfkb1a, NF-κB, NF-κB 1, p105, p50
Uniprot ID	P25799
免疫原	KLH偶联的小鼠NFkBp105合成肽
抗体亚型	IgG
预测分子量./观测分子量.	105/84/98/40/65/56/44 kDa / 44 kDa
纯化方式	亲和纯化

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应用

应用	物种	稀释	阳性样品
WB 免疫印迹	人	1: 300-1: 800	K562细胞

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背景

NF-kappa-B is a pleiotropic transcription factor present in almost all cell types and is the endpoint of a series of signal transduction events that are initiated by a vast array of stimuli related to many biological processes such as inflammation, immunity, differentiation, cell growth, tumorigenesis and apoptosis. NF-kappa-B is a homo- or heterodimeric complex formed by the Rel-like domain-containing proteins RELA/p65, RELB, NFKB1/p105, NFKB1/p50, REL and NFKB2/p52 and the heterodimeric p65-p50 complex appears to be most abundant one. The dimers bind at kappa-B sites in the DNA of their target genes and the individual dimers have distinct preferences for different kappa-B sites that they can bind with distinguishable affinity and specificity. Different dimer combinations act as transcriptional activators or repressors, respectively. NF-kappa-B is controlled by various mechanisms of post-translational modification and subcellular compartmentalization as well as by interactions with other cofactors or corepressors. NF-kappa-B complexes are held in the cytoplasm in an inactive state complexed with members of the NF-kappa-B inhibitor (I-kappa-B) family. In a conventional activation pathway, I-kappa-B is phosphorylated by I-kappa-B kinases (IKKs) in response to different activators, subsequently degraded thus liberating the active NF-kappa-B complex which translocates to the nucleus. NF-kappa-B heterodimeric p65-p50 and RelB-p50 complexes are transcriptional activators. The NF-kappa-B p50-p50 homodimer is a transcriptional repressor, but can act as a transcriptional activator when associated with BCL3. NFKB1 appears to have dual functions such as cytoplasmic retention of attached NF-kappa-B proteins by p105 and generation of p50 by a cotranslational processing. The proteasome-mediated process ensures the production of both p50 and p105 and preserves their independent function, although processing of NFKB1/p105 also appears to occur post-translationally. p50 binds to the kappa-B consensus sequence 5'-GGRNNYYCC-3', located in the enhancer region of genes involved in immune response and acute phase reactions. Plays a role in the regulation of apoptosis. Isoform 5, isoform 6 and isoform 7 act as inhibitors of transactivation of p50 NF-kappa-B subunit, probably by sequestering it in the cytoplasm. Isoform 3 (p98) (but not p84 or p105) acts as a transactivator of NF-kappa-B-regulated gene expression. In a complex with MAP3K8, NFKB1/p105 represses MAP3K8-induced MAPK signaling; active MAP3K8 is released by proteasome-dependent degradation of NFKB1/p105.

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图像

WB检测NFkB p105/p50蛋白(货号 YB115442). 样品: 经RIPA裂解液(货号Y2013)处理的蛋白质. 封闭: 封闭: 3%脱脂牛奶(货号YC310012)溶于TBST溶液, 室温孵育1小时. —抗: 1: 800稀释, 4℃ 孵育过夜. 二抗: HRP标记山羊抗兔IgG (H+L) (货号YB23314), 1: 5000稀释, 室温孵育1小时.

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储存

储存条件	在-20℃下储存一年, 避免反复冻融.
储存缓冲液	含0.15% ProClin300防腐剂, 100 μg/mL牛血清白蛋白和50%甘油的磷酸盐缓冲液.

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注意:

1.本产品仅供研究使用.

2.建议用一抗稀释液(Y2036)稀释本产品.