英文名称ATF4
中文名称活化转录因子4抗体
别 名Cyclic AMP response element binding protein 2; DNA binding protein TAXREB67; Activating Transcription Factor 4; ATF 4; ATF4 protein; CREB 2; CREB2; CREB-2; Cyclic AMP dependent transcription factor ATF 4; Tax Responsive Enhancer Element B67; TAXREB67; TXREB; ATF4_HUMAN.
文献引用

规格50ul 100ul 200ul
研究领域肿瘤 信号转导 细胞凋亡 转录调节因子
抗体来源Rabbit
克隆类型Polyclonal
交叉反应 Human, Mouse, Rat, Dog, Pig, Cow, Horse, Rabbit, Sheep, 
产品应用WB=1:500-2000 ELISA=1:500-1000 IHC-P=1:400-800 IHC-F=1:400-800 Flow-Cyt=0.2μg /test IF=1:100-500 （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38kDa
细胞定位细胞核 细胞浆 细胞膜 
性 状Lyophilized or Liquid
浓 度1mg/ml
免 疫 原KLH conjugated synthetic peptide derived from human ATF4:251-351/351 
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.
PubMedPubMed
产品介绍background:
This gene encodes a transcription factor that was originally identified as a widely expressed mammalian DNA binding protein that could bind a tax-responsive enhancer element in the LTR of HTLV-1. The encoded protein was also isolated and characterized as the cAMP-response element binding protein 2 (CREB-2). The protein encoded by this gene belongs to a family of DNA-binding proteins that includes the AP-1 family of transcription factors, cAMP-response element binding proteins (CREBs) and CREB-like proteins. These transcription factors share a leucine zipper region that is involved in protein-protein interactions, located C-terminal to a stretch of basic amino acids that functions as a DNA binding domain. Two alternative transcripts encoding the same protein have been described. Two pseudogenes are located on the X chromosome at q28 in a region containing a large inverted duplication. [provided by RefSeq, Sep 2011]

Function:
Transcriptional activator. Binds the cAMP response element (CRE) (consensus: 5'-GTGACGT[AC][AG]-3'), a sequence present in many viral and cellular promoters. Cooperates with FOXO1 in osteoblasts to regulate glucose homeostasis through suppression of beta-cell production and decrease in insulin production. It binds to a Tax-responsive enhancer element in the long terminal repeat of HTLV-I. Regulates the induction of DDIT3/CHOP and asparagine synthetase (ASNS) in response to ER stress. In concert with DDIT3/CHOP, activates the transcription of TRIB3 and promotes ER stress-induced neuronal apoptosis by regulating the transcriptional induction of BBC3/PUMA. Activates transcription of SIRT4.

Subunit:
Binds DNA as a homo- or heterodimer. Interacts (via its leucine zipper domain) with GABBR1 and GABBR2 (via their C-termini). Interacts (via its DNA binding domain) with FOXO1 (C-terminal half); the interaction occurs in osteoblasts and regulates glucose homeostasis through suppression of beta-cell proliferation and a decrease in insulin production. Interacts with SATB2; the interaction results in enhanced DNA binding and transactivation by these transcription factors. Interacts with CEP290 (via an N-terminal region). Interacts with NEK6, DAPK2 (isoform 2) and ZIPK/DAPK3. Forms a heterodimer with TXLNG in osteoblasts. Interacts with DDIT3/CHOP.

Subcellular Location:
Cytoplasm. Cell membrane. Nucleus. Cytoplasm, cytoskeleton, microtubule organizing center, centrosome. Note=Colocalizes with GABBR1 in hippocampal neuron dendritic membranes. Co- localizes with NEK6 in the centrosome.

Post-translational modifications:
Ubiquitinated by SCF(BTRC) in response to mTORC1 signal, followed by proteasomal degradation and leading to down-regulate expression of SIRT4. 
Phosphorylated by NEK6. Phosphorylated on the betaTrCP degron motif at Ser-219, followed by phosphorylation at Thr-213, Ser-224, Ser-231, Ser-235 and Ser-248, promoting interaction with BTRC and ubiquitination. Phosphorylation is promoted by mTORC1. 
Phosphorylated by NEK6.

Similarity:
Belongs to the bZIP family. 
Contains 1 bZIP (basic-leucine zipper) domain.

SWISS:
P18848

Gene ID:
468

Database links:
Entrez Gene: 468 Human
Entrez Gene: 11911 Mouse
Entrez Gene: 79255 Rat
NCBI: 33469976 Human
Omim: 604064 Human
SwissProt: P18848 Human
SwissProt: Q96AQ3 Human
SwissProt: Q06507 Mouse
SwissProt: Q5U4B2 Mouse
SwissProt: Q8CF69 Mouse
SwissProt: Q9ES19 Rat
Unigene: 496487 Human
Unigene: 641 Mouse
Unigene: 2423 Rat


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


Sample: 
Embryo(Mouse) lysate at 30ug;
Eye(Mouse) lysate at 30 ug; 
Primary: Anti-ATF4 (bs-1531R) at 1:300 dilution; 
Secondary: HRP conjugated Goat-Anti-Rabbit IgG(bse-0295G) at 1: 5000 dilution; 
Predicted band size : 38kD
Observed band size : 38kD


Paraformaldehyde-fixed, paraffin embedded (human brain glioma); 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 (ATF4) Polyclonal Antibody, Unconjugated (bs-1531R) at 1:400 overnight at 4°C, followed by operating according to SP Kit(Rabbit) (sp-0023) instructionsand DAB staining.

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 (ATF4) Polyclonal Antibody, Unconjugated (bs-1531R) at 1:400 overnight at 4°C, followed by operating according to SP Kit(Rabbit) (sp-0023) instructionsand DAB staining.

Tissue/cell: mouse brain tissue; 4% Paraformaldehyde-fixed and paraffin-embedded; 
Antigen retrieval: citrate buffer ( 0.01M, pH 6.0 ), Boiling bathing for 15min; Block endogenous peroxidase by 3% Hydrogen peroxide for 30min; Blocking buffer (normal goat serum,C-0005) at 37℃ for 20 min; 
Incubation: Anti-ATF4 Polyclonal Antibody, Unconjugated(bs-1531R) 1:200, overnight at 4°C, followed by conjugation to the secondary antibody(SP-0023) and DAB(C-0010) staining


Tissue/cell: human rectal carcinoma; 4% Paraformaldehyde-fixed and paraffin-embedded; 
Antigen retrieval: citrate buffer ( 0.01M, pH 6.0 ), Boiling bathing for 15min; Block endogenous peroxidase by 3% Hydrogen peroxide for 30min; Blocking buffer (normal goat serum,C-0005) at 37℃ for 20 min; 
Incubation: Anti-ATF4 Polyclonal Antibody, Unconjugated(bs-1531R) 1:200, overnight at 4°C, followed by conjugation to the secondary antibody(SP-0023) and DAB(C-0010) staining


Tissue/cell: human gastric carcinoma; 4% Paraformaldehyde-fixed and paraffin-embedded; 
Antigen retrieval: citrate buffer ( 0.01M, pH 6.0 ), Boiling bathing for 15min; Block endogenous peroxidase by 3% Hydrogen peroxide for 30min; Blocking buffer (normal goat serum,C-0005) at 37℃ for 20 min; 
Incubation: Anti-ATF4/CREB-2 Polyclonal Antibody, Unconjugated(bs-1531R) 1:200, overnight at 4℃, followed by conjugation to the secondary antibody(SP-0023) and DAB(C-0010) staining


Blank control (blue line): Hela 
Primary Antibody (green line): Rabbit Anti-Bid antibody (bs-1531R) 
Dilution: 0.2μg /10^6 cells; 
Isotype Control Antibody (orange line): Rabbit IgG .
Secondary Antibody (white blue line): Goat anti-rabbit IgG-FITC
Dilution: 1μg /test. 
Protocol
The cells were fixed with 70% ethanol (Overnight at 4℃) and then permeabilized with 90% ice-cold methanol for 30 min on ice. Cells stained with Primary Antibody for 30 min at room temperature. The cells were then incubated in 1 X PBS/2%BSA/10% goat serum to block non-specific protein-protein interactions followed by the antibody for 15 min at room temperature. The secondary antibody used for 40 min at room temperature. Acquisition of 20,000 events was performed.