ATF4 Polyclonal antibody

ATF4 Polyclonal Antibody for IHC, WB, ELISA

Host / Isotype

Rabbit / IgG

Reactivity

Human and More (2)

Applications

WB, IHC, ELISA

Conjugate

Unconjugated

Cat no : 28657-1-AP

Synonyms

ATF4, CREB 2, CREB2, DNA binding protein TAXREB67, TAXREB67, TXREB



Tested Applications

Positive WB detected inA431 cells, HeLa cells
Positive IHC detected inhuman breast cancer tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0

Recommended dilution

ApplicationDilution
Western Blot (WB)WB : 1:1000-1:4000
Immunohistochemistry (IHC)IHC : 1:50-1:500
Sample-dependent, check data in validation data gallery

Published Applications

WBSee 3 publications below

Product Information

28657-1-AP targets ATF4 in WB, IHC, ELISA applications and shows reactivity with Human samples.

Tested Reactivity Human
Cited Reactivityhuman, mouse
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen ATF4 fusion protein Ag29844
Full Name activating transcription factor 4 (tax-responsive enhancer element B67)
Calculated molecular weight 39 kDa
Observed molecular weight45-50 kDa
GenBank accession numberBC022088
Gene symbol ATF4
Gene ID (NCBI) 468
Conjugate Unconjugated
Form Liquid
Purification Method Antigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.

Background Information

ATF4 is a transcription factor, that accumulates predominantly in osteoblasts, where it regulates terminal osteoblast differentiation and bone formation[PMID: 19016586]. As a basic leucine-zipper (bZip) transcription factor, ATF4 can regulate amino acid metabolism, cellular redox state, and anti-stress responses. It also regulates age-related and diet-induced obesity and glucose homeostasis in mammals, and has conserved metabolic functions in flies[PMID: 19726872]. Due to its location at chromosome 22q13, a region linked to schizophrenia, ATF4 is considered as a positional candidate gene for schizophrenia[PMID: 18163433]. Otherwise, since ATF4 is induced by tumour microenvironmental factors, and regulates processes relevant to cancer progression, it might serve as a potential therapeutic target in cancer. Endogenous ATF4 protein has a molecular mass of 50kd. [PMID: 17726049]. ATF4 can bind DNA as a homodimer and as a heterodimer. ATF4 is ubiquitinated by SCF(BTRC) in response to mTORC1 signal, followed by proteasomal degradation and leading to down-regulate expression of SIRT4, so the molecular weight of ATF4 may be 70 kDa.

Protocols

Product Specific Protocols
WB protocol for ATF4 antibody 28657-1-APDownload protocol
IHC protocol for ATF4 antibody 28657-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols

Publications

SpeciesApplicationTitle
mouseWB

Autophagy

Epg5 deficiency leads to primary ovarian insufficiency due to WT1 accumulation in mouse granulosa cells.

Authors - Wenwen Liu
mouseWB

J Hazard Mater

Endoplasmic reticulum stress manipulates autophagic response that antagonizes polybrominated diphenyl ethers quinone induced cytotoxicity in microglial BV2 cells.

Authors - Qiushuang Zhu
humanWB

Inflammation

CCAAT/Enhancer-Binding Protein Homologous Protein (CHOP) Deficiency Attenuates Heatstroke-Induced Intestinal Injury

Authors - Yan Cao