Recombinant Human Eukaryotic translation initiation factor 2-alpha kinase 1 (EIF2AK1 HRI KIAA1369 PRO1362)

中文名稱：
貨號：

CSB-YP007510HU
說明書：

MSDS Datasheet
規格：
來源：

Yeast
其他：

中文名稱：
貨號：

CSB-EP007510HU
說明書：

MSDS Datasheet
規格：
來源：

E.coli
其他：

中文名稱：
貨號：

CSB-EP007510HU-B
說明書：

MSDS Datasheet
規格：
來源：

E.coli
共軛：

Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
其他：

中文名稱：
貨號：

CSB-BP007510HU
說明書：

MSDS Datasheet
規格：
來源：

Baculovirus
其他：

中文名稱：
貨號：

CSB-MP007510HU
說明書：

MSDS Datasheet
規格：
來源：

Mammalian cell
其他：

產品詳情
產品評價
相關產品
靶點詳情

產品詳情

純度：

>85% (SDS-PAGE)
基因名：

E2AK1
Uniprot No.：

Q9BQI3
別名：

Eukaryotic translation initiation factor 2-alpha kinase 1; EC 2.7.11.1; Heme-controlled repressor; HCR; Heme-regulated eukaryotic initiation factor eIF-2-alpha kinase; Heme-regulated inhibitor; hHRI; Hemin-sensitive initiation factor 2-alpha kinase; EIF2AK1 HRI KIAA1369 PRO1362
種屬：

Homo sapiens (Human)
蛋白標簽：

Tag?type?will?be?determined?during?the?manufacturing?process.

The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
產品提供形式：

Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
復溶：

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
儲存條件：

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
保質期：

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
貨期：

Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
注意事項：

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet ：

Please contact us to get it.

產品評價

靶點詳情

功能：

Metabolic-stress sensing protein kinase that phosphorylates the alpha subunit of eukaryotic translation initiation factor 2 (EIF2S1/eIF-2-alpha) in response to various stress conditions. Key activator of the integrated stress response (ISR) required for adaptation to various stress, such as heme deficiency, oxidative stress, osmotic shock, mitochondrial dysfunction and heat shock. EIF2S1/eIF-2-alpha phosphorylation in response to stress converts EIF2S1/eIF-2-alpha in a global protein synthesis inhibitor, leading to a global attenuation of cap-dependent translation, while concomitantly initiating the preferential translation of ISR-specific mRNAs, such as the transcriptional activator ATF4, and hence allowing ATF4-mediated reprogramming. Acts as a key sensor of heme-deficiency: in normal conditions, binds hemin via a cysteine thiolate and histidine nitrogenous coordination, leading to inhibit the protein kinase activity. This binding occurs with moderate affinity, allowing it to sense the heme concentration within the cell: heme depletion relieves inhibition and stimulates kinase activity, activating the ISR. Thanks to this unique heme-sensing capacity, plays a crucial role to shut off protein synthesis during acute heme-deficient conditions. In red blood cells (RBCs), controls hemoglobin synthesis ensuring a coordinated regulation of the synthesis of its heme and globin moieties. It thereby plays an essential protective role for RBC survival in anemias of iron deficiency. Similarly, in hepatocytes, involved in heme-mediated translational control of CYP2B and CYP3A and possibly other hepatic P450 cytochromes. May also regulate endoplasmic reticulum (ER) stress during acute heme-deficient conditions. Also activates the ISR in response to mitochondrial dysHRI/EIF2AK1 protein kinase activity is activated upon binding to the processed form of DELE1 (S-DELE1), thereby promoting the ATF4-mediated reprogramming.
基因功能參考文獻：
1. Activation of HRI is mediated by Hsp90 during stress through modulation of the HRI-Hsp90 complex PMID: 30170366
2. Taken together, these results suggest HRI as a potential therapeutic target for hemoglobinopathies. PMID: 30026227
3. data suggests that glutamatergic stimulation induces HRI activation by NO to trigger GluN2B expression and this process would be relevant to maintain postsynaptic activity in cortical neurons PMID: 27557499
4. The antiviral kinase PKR plays a critical role in controlling HCMV replication. PMID: 27974558
5. structural and functional stability of HRI PMID: 27888007
6. Infection-associated functions of HRI (an eIF2alpha kinase) are independent of its activity as a regulator of protein synthesis. PMID: 23874749
7. During lead-stress, the regulation of hHRI mRNA translation is mediated through its 5'-untranslated region (UTR) that interacts with specific trans-acting factors. PMID: 23357686
8. Dephosphorylation of eIF2alpha, specifically in the cortex, is both correlated with and necessary for normal memory consolidation. PMID: 23392680
9. eukaryotic initiation factor 2alpha kinase is a protagonist of heme-mediated translational control of CYP2B enzymes and a modulator of basal endoplasmic reticulum stress tone. PMID: 20071449
10. autophosphorylation of Thr485 is essential for the hyperphosphorylation and activation of HRI and is required for the acquisition of the eIF2alpha kinase activity PMID: 12767237
11. These data establish for the first time, the possible mechanisms of regulation of hHRI gene expression under normal physiological condition, hemin exposure and stress. PMID: 19133234
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蛋白家族：

Protein kinase superfamily, Ser/Thr protein kinase family, GCN2 subfamily
組織特異性：

Expressed predominantly in erythroid cells. Expressed at much lower levels in hepatocytes (at protein level).
數據庫鏈接：

HGNC: 24921

KEGG: hsa:27102

STRING: 9606.ENSP00000199389

UniGene: Hs.520205