产品分类/PRODUCT CLASSIFICATION
| 中文名称 | 真核启动因子2α抗体(eIFα2) |
| 别 名 | CDA 02; CDA02; eIF 2 alpha; EIF 2; EIF 2A; EIF-2alpha; EIF2; EIF2A; EIF2alpha; eIF2S1; Eukaryotic Translation Initiation Factor 2 alpha; Eukaryotic translation initiation factor 2 subunit 1 alpha 35kDa; Eukaryotic translation initiation factor 2 subunit alpha. |
| 研究领域 | 肿瘤 细胞生物 免疫学 信号转导 细胞凋亡 转录调节因子 激酶和磷酸酶 |
| 抗体来源 | Rabbit |
| 克隆类型 | Polyclonal |
| 交叉反应 | Human, Mouse, Rat, (predicted: Chicken, Cow, Rabbit, ) |
| 产品应用 | WB=1:500-2000 ELISA=1:500-1000 IHC-P=1:100-500 IHC-F=1:100-500 Flow-Cyt=1ug/test IF=1:200-800 （石蜡切片需做抗原修复） not yet tested in other applications. optimal dilutions/concentrations should be determined by the end user. |
| 分 子 量 | 65kDa |
| 细胞定位 | 细胞浆 |
| 性 状 | Liquid |
| 浓 度 | 1mg/ml |
| 免 疫 原 | KLH conjugated synthetic peptide derived from human eIF2 alpha:75-180/315 |
| 亚 型 | IgG |
| 纯化方法 | affinity purified by Protein A |
| 储 存 液 | 0.01M TBS(pH7.4) with 1% BSA, 0.03% Proclin300 and 50% Glycerol. |
| 保存条件 | Shipped at 4℃. Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. |
| PubMed | PubMed |
| 产品介绍 | eIF2 alpha is a 36 kDa protein which is ubiquitously expressed in many cell types. The eIF2 protein, which is composed of three subunits (alpha, beta and gamma), is one of the key molecules in the initiation of translation. In mammalian cells, eIF2 alpha is phosphorylated at serine 51 (human EIF2 alpha, the equivalent residue in mouse is serine 52) by at least two kinases: the haem-controlled repressor (HCR) and the interferon inducible double stranded RNA-dependent protein kinase (PKR). Phosphorylation of eIF2 alpha blocks the GDP-GTP exchange activity of eIF2 beta, resulting in the suppression of protein synthesis. The phosphorylation of eIF2 alpha is an important regulatory process in protein synthesis. Function: Functions in the early steps of protein synthesis by forming a ternary complex with GTP and initiator tRNA. This complex binds to a 40S ribosomal subunit, followed by mRNA binding to form a 43S preinitiation complex. Junction of the 60S ribosomal subunit to form the 80S initiation complex is preceded by hydrolysis of the GTP bound to eIF-2 and release of an eIF-2-GDP binary complex. In order for eIF-2 to recycle and catalyze another round of initiation, the GDP bound to eIF-2 must exchange with GTP by way of a reaction catalyzed by eIF-2B. Subunit: Heterotrimer composed of an alpha, a beta and a gamma chain. Component of an EIF2 complex at least composed of CELF1/CUGBP1, CALR, CALR3, EIF2S1, EIF2S2, HSP90B1 and HSPA5. Interaction with METAP2 protects EIF2S1 from inhibitory phosphorylation (By similarity). Interacts with ABCF1 isoform 2. Associates with ribosomes. Subcellular Location: Cytoplasmic granule. Note=The cytoplasmic granules are stress granules which are a dense aggregation in the cytosol composed of proteins and RNAs that appear when the cell is under stress. Co-localizes with NANOS3 in the stress granules. Post-translational modifications: Substrate for at least 4 kinases: EIF2AK3/PERK, GCN2, HRI and PKR. Phosphorylation stabilizes the eIF-2/GDP/eIF-2B complex and prevents GDP/GTP exchange reaction, thus impairing the recycling of eIF-2 between successive rounds of initiation and leading to global inhibition of translation. In case of infection by vaccinia virus or rotavirus A, eIF2S1 phosphorylation state is modulated. Similarity: Belongs to the eIF-2-alpha family. Contains 1 S1 motif domain. SWISS: P05198 Gene ID: 1965 Database links: Entrez Gene: 1965 Human Entrez Gene: 13665 Mouse Entrez Gene: 54318 Rat Omim: 603907 Human SwissProt: P05198 Human SwissProt: Q6ZWX6 Mouse SwissProt: P68101 Rat Unigene: 151777 Human Unigene: 196220 Mouse Unigene: 1488 Rat Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications. eIF2α（真核启动因子2α） |
| 产品图片 |  Sample:A431 Cell (Human) Lysate at 30 ug Primary: Anti- eIF2 alpha (bs-3613R) at 1/300 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 65 kD Observed band size: 65 kD  Sample:Lung (Mouse) Lysate at 40 ug Primary: Anti- eIF2 alpha (bs-3613R) at 1/300 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 65 kD Observed band size: 65 kD  Sample:A431 Cell (Human) Lysate at 30 ug U2os Cell (Human) Lysate at 30 ug Primary: Anti-eIF2 alpha (Bs- 3613R) at 1/300 dilution Secondary: IRDye800CW Goat Anti-Rabbit IgG at 1/20000 dilution Predicted band size: 65 kD Observed band size: 65 kD  Paraformaldehyde-fixed, paraffin embedded (Rat brain); Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37°C for 30min; Antibody incubation with (EIF2S1/eIF2 alpha) Polyclonal Antibody, Unconjugated (bs-3613R) at 1:400 overnight at 4°C, followed by operating according to SP Kit(Rabbit) (sp-0023) instructions and DAB staining. Paraformaldehyde-fixed, paraffin embedded (rat lung tissue); Antigen retrieval by boiling in sodium citrate buffer (pH6.0) for 15min; Block endogenous peroxidase by 3% hydrogen peroxide for 20 minutes; Blocking buffer (normal goat serum) at 37°C for 30min; Antibody incubation with (eIF2 alpha) Polyclonal Antibody, Unconjugated (bs-3613R) at 1:500 overnight at 4°C, followed by a conjugated secondary (sp-0023) for 20 minutes and DAB staining Blank control: Raji.Primary Antibody (green line): Rabbit Anti-EIF2S1 antibody (bs-3613R) Dilution: 1μg /10^6 cells; Isotype Control Antibody (orange line): Rabbit IgG . Secondary Antibody : Goat anti-rabbit IgG-PE Dilution: 1μg /test. Protocol The cells were fixed with 4% PFA (10min at room temperature)and then permeabilized with PBST for 20 min at room temperature. The cells were then incubated in 5%BSA to block non-specific protein-protein interactions for 30 min at at room temperature .Cells stained with Primary Antibody for 30 min at room temperature. The secondary antibody used for 40 min at room temperature. Acquisition of 20,000 events was performed. |
