| 货号 | 3411T |
| 同种亚型 | Rabbit IgG |
| 反应种属 | Human,Mouse,Rat,Monkey, |
| 来源宿主 | Rabbit IgG |
| 应用 | WB, IP , IHC-P , IF-IC |
| 目标/特异性 | eIF3A (D51F4) XP® Rabbit mAb detects endogenous levels of total eIF3A protein. |
| 使用方法 | WB(1:1000) IP (1:50) IHC-P (1:800) IF-IC (1:1600) |
| 供应商 | CST |
| 灵敏度 | Endogenous |
| 背景 | Translation initiation requires a set of factors to facilitate the association of the 40S ribosomal subunit with mRNA. The eIF4F complex, consisting of eIF4E, eIF4A and eIF4G, binds to the 5 cap structure of mRNA. eIF4F and eIF4B unwind the secondary structure of mRNA at its 5 untranslated region. The 40S ribosomal subunit, along with some initiation factors including eIF3, then binds to the 5 mRNA cap and searches along the mRNA for the initiation codon. eIF3 is a large translation initiation complex with 10 to 13 different subunits. eIF3a, eIF3b, eIF3c, eIF3e, eIF3f and eIF3h are the core subunits critical for the function of this complex. eIF3 physically interacts with eIF4G, which may be responsible for the association of the 40S ribosomal subunit with mRNA (1). eIF3 also stabilizes the binding of Met-tRNAf.eIF2.GTP to the 40S ribosomal subunit and helps keep the integrity of the resulting complex upon addition of the 60S ribosomal subunit (2). Studies have shown that mTOR interacts with eIF3 directly (3,4). When cells are stimulated by hormones or mitogenic signals, mTOR binds to the eIF3 complex and phosphorylates S6K1 (3). This process results in the dissociation of S6K1 from eIF3 and S6K1 activation. The activated S6K1 then phosphorylates its downstream targets including ribosomal protein S6 and eIF4B resulting in stimulation of translation. Further findings demonstrated that activated mTOR signaling induces the association of eIF3 with eIF4G upon stimulation with insulin (3). |
| 存放说明 | -20C |
| 计算分子量 | 166 |
| 参考文献 | 1 . Masutani, M. et al. (2007) EMBO J 26, 3373-83. 2 . Chaudhuri, J. et al. (1999) J Biol Chem 274, 17975-80. 3 . Holz, M.K. et al. (2005) Cell 123, 569-80. 4 . Harris, T.E. et al. (2006) EMBO J 25, 1659-68. |
Immunohistochemical analysis of paraffin-embedded human colon carcinoma using eIF3A (D51F4) XP® Rabbit mAb. 使用eIF3A (D51F4) XP®Rabbit mAb兔单抗，免疫组化分析人类结肠癌石蜡切片。 | |
Western blot analysis of extracts from various cell types using eIF3A (D51F4) XP® Rabbit mAb. 使用eIF3A (D51F4) XP® Rabbit mAb兔单抗，免疫印迹（Western Blotting）分析不同细胞系提取物。 | |
Confocal immunofluorescent analysis of HeLa cells using eIF3A (D51F4) XP® Rabbit mAb (green). Actin filaments have been labeled with DY-554 phalloidin (red). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye). 使用eIF3A (D51F4) XP® Rabbit mAb兔单抗（绿色）标记，共聚焦免疫荧光观察eIF3A蛋白在HeLa细胞定位。DY-554 phalloidin标记微丝蛋白（红色）。蓝色伪彩 = DRAQ5® #4084 (DNA 荧光染料)。 |
