中文名稱    真核翻譯起始因子4G抗體    

英文名稱    eIF4G  

別    名    eIF 4 gamma 1; eIF 4G 1; eIF 4G1; eIF4G1; EIF4 gamma; EIF4F; EIF4G; EIF4GI; Eukaryotic translation initiation factor 4 gamma 1; p220; DKFZp686A1451.    

供 應 商   遠慕生物    

研究領域    免疫學  信號轉導  轉錄調節因子      

抗體來源    Rabbit    

克隆類型    Polyclonal    

交叉反應    Human, Mouse, Rat, Pig, Cow, Horse, Rabbit,     

產品應用    WB=1:100-500 ELISA=1:500-1000 IP=1:20-100 IHC-P=1:100-500 IHC-F=1:100-500 IF=1:100-500 真核翻譯起始因子4G抗體（石蠟切片需做抗原修復） 
not yet tested in other applications.
optimal dilutions/concentrations should be determined by the end user.    

分 子 量    176kDa    

性    狀    Lyophilized or Liquid    

濃    度    1mg/1ml    

免 疫 原    KLH conjugated synthetic peptide derived from human eIF4G C-terminus    

亞    型    IgG    

純化方法    affinity purified by Protein A    

儲 存 液    0.01M PBS, pH 7.4 with 10 mg/ml BSA and 0.1% Sodium azide    

保存條件    Store at -20 °C for one year. Avoid repeated freeze/thaw cycles. The lyophilized antibody is stable at room temperature for at least one month and for greater than a year when kept at -20°C. When reconstituted in sterile pH 7.4 0.01M PBS or diluent of antibody the antibody is stable for at least two weeks at 2-4 °C.    

真核翻譯起始因子4G抗體產品介紹    background:

The protein encoded by this gene is a component of the multi-subunit protein complex EIF4F. This complex facilitates the recruitment of mRNA to the ribosome, which is a rate-limiting step during the initiation phase of protein synthesis. The recognition of the mRNA cap and the ATP-dependent unwinding of 5'-terminal secondary structure is catalyzed by factors in this complex. The subunit encoded by this gene is a large scaffolding protein that contains binding sites for other members of the EIF4F complex. A domain at its N-terminus can also interact with the poly(A)-binding protein, which may mediate the circularization of mRNA during translation. Alternative splicing results in multiple transcript variants, some of which are derived from alternative promoter usage. [provided by RefSeq].

Function:
Component of the protein complex eIF4F, which is involved in the recognition of the mRNA cap, ATP-dependent unwinding of 5'-terminal secondary structure and recruitment of mRNA to the ribosome.

Subunit:
eIF4F is a multi-subunit complex, the composition of which varies with external and internal environmental conditions. It is composed of at least EIF4A, EIF4E and EIF4G1/EIF4G3. Interacts with eIF3, mutually exclusive with EIF4A1 or EIFA2, EIF4E and through its N-terminus with PAPBC1. Interacts through its C-terminus with the serine/threonine kinases MKNK1, and with MKNK2. Appears to act as a scaffold protein, holding these enzymes in place to phosphorylate EIF4E. Non-phosphorylated EIF4EBP1 competes with EIF4G1/EIF4G3 to interact with EIF4E; insulin stimulated MAP-kinase (MAPK1 and MAPK3) phosphorylation of EIF4EBP1 causes dissociation of the complex allowing EIF4G1/EIF4G3 to bind and consequent initiation of translation. EIF4G1/EIF4G3 interacts with PABPC1 to bring about circularization of the mRNA. Rapamycin can attenuate insulin stimulation mediated by FKBPs. Interacts with EIF4E3. Interacts with CIRBP and MIF4GD. Interacts with rotavirus A NSP3; in this interaction, NSP3 takes the place of PABPC1 thereby inducing shutoff of host protein synthesis. Interacts with RBM4.

Post-translational modifications:
Phosphorylated at multiple sites in vivo. Phosphorylation at Ser-1185 by PRKCA induces binding to MKNK1.
Following infection by certain enteroviruses, rhinoviruses and aphthoviruses, EIF4G1 is cleaved by the viral protease 2A, or the leader protease in the case of aphthoviruses. This shuts down the capped cellular mRNA transcription.

DISEASE:
Defects in EIF4G1 are the cause of Parkinson disease type 18 (PARK18) [MIM:614251]. An autosomal dominant, late-onset form of Parkinson disease. Parkinson disease is a complex neurodegenerative disorder characterized by bradykinesia, resting tremor, muscular rigidity and postural instability, as well as by a clinically significant response to treatment with levodopa. The pathology involves the loss of dopaminergic neurons in the substantia nigra and the presence of Lewy bodies (intraneuronal accumulations of aggregated proteins), in surviving neurons in various areas of the brain.

Similarity:
Belongs to the eIF4G family. 
Contains 1 MI domain. 
Contains 1 MIF4G domain. 
Contains 1 W2 domain.

Database links:

Entrez Gene: 1981 Human

Entrez Gene: 208643 Mouse

Entrez Gene: 287986 Rat

Omim: 600495 Human

SwissProt: Q04637 Human

SwissProt: Q6NZJ6 Mouse

SwissProt: Q4G001 Rat

Unigene: 433750 Human

Unigene: 260256 Mouse

Unigene: 101803 Rat


important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.