Product Details

Uniprot No.

Target Names

PA2G4

Alternative Names

38kDa antibody; AA672939 antibody; Cell cycle protein p38 2G4 homolog antibody; Cell cycle protein p38-2G4 homolog antibody; ErbB-3 binding protein 1 antibody; ErbB3 binding protein 1 antibody; ErbB3-binding protein 1 antibody; ErbB3-binding protein Ebp1 antibody; hG4 1 antibody; hG4-1 antibody; IRES-specific cellular trans-acting factor 45 kDa antibody; MGC81621 antibody; MGC94070 antibody; Mpp1 antibody; p38 2G4 antibody; Pa2g4 antibody; PA2G4_HUMAN antibody; Plfap antibody; Proliferation associated 2G4 antibody; Proliferation associated 2G4; 38-KD antibody; Proliferation-associated 2G4; 38kDa antibody; Proliferation-associated 2G4; a antibody; Proliferation-associated protein 1 antibody; Proliferation-associated protein 2G4 antibody; Protein p38-2G4 antibody; si:dz150i12.2 antibody; wu:fb19b11 antibody; wu:ft56d05 antibody; zgc:86732 antibody

Species Reactivity

Human

Immunogen

A synthesized peptide derived from human PA2G4

Immunogen Species

Homo sapiens (Human)

Conjugate

Non-conjugated

Clonality

Monoclonal

Isotype

Rabbit IgG

Clone No.

6E8

Purification Method

Affinity-chromatography

Concentration

It differs from different batches. Please contact us to confirm it.

Buffer

Rabbit IgG in 10mM phosphate buffered saline , pH 7.4, 150mM sodium chloride, 0.05% BSA, 0.02% sodium azide and 50% glycerol.

Form

Liquid

Tested Applications

ELISA, WB, IF, FC

Recommended Dilution

Application	Recommended Dilution
WB	1:500-1:2000
IF	1:50-1:200
FC	1:50-1:200

Protocols

ELISA Protocol
Western Blotting(WB) Protocol
Immunofluorescence (IF) Protocol
Flow Cytometry (FC) Protocol

Troubleshooting and FAQs

Antibody FAQs

Storage

Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.

Lead Time

Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

Description

PA2G4, also known as ErbB3-binding protein 1 (Ebp1), plays a multifaceted role in cellular proliferation, differentiation, and survival signaling. This 44 kDa protein interacts with the ErbB3 receptor and participates in ribosome biogenesis, making it a compelling target for researchers investigating cell cycle regulation, cancer biology, and growth factor signaling pathways. Its dual functions as both a transcriptional regulator and translational modulator position PA2G4 at a critical intersection of cellular control mechanisms.

This recombinant monoclonal antibody, clone 6E8, offers the reproducibility and consistency that demanding experimental workflows require. Produced using recombinant technology in rabbit host, each lot delivers sequence-defined specificity against a synthetic peptide derived from human PA2G4, eliminating the batch variability that can compromise longitudinal studies or multi-site collaborations.

Validation across multiple platforms demonstrates genuine experimental flexibility. Western blot analysis confirms specific detection of PA2G4 at the expected 44 kDa molecular weight in both K562 and HEK293 whole cell lysates, with effective working dilutions between 1:500 and 1:2000. Immunofluorescence studies in HeLa cells reveal the protein's subcellular distribution patterns, while flow cytometry analysis in HepG2 cells enables quantitative assessment of PA2G4 expression at the single-cell level, with clear separation from isotype control populations.

The antibody arrives affinity-purified and formulated for long-term stability, supporting extended research programs without compromising performance. Whether investigating ErbB3 signaling dynamics, exploring ribosomal protein networks, or characterizing proliferation markers in cancer models, this antibody provides the technical foundation for meaningful discoveries in cell biology and oncology research.

Usage

For Research Use Only. Not for use in diagnostic or therapeutic procedures.

Related Products

Target Background

Function

May play a role in a ERBB3-regulated signal transduction pathway. Seems be involved in growth regulation. Acts a corepressor of the androgen receptor (AR) and is regulated by the ERBB3 ligand neuregulin-1/heregulin (HRG). Inhibits transcription of some E2F1-regulated promoters, probably by recruiting histone acetylase (HAT) activity. Binds RNA. Associates with 28S, 18S and 5.8S mature rRNAs, several rRNA precursors and probably U3 small nucleolar RNA. May be involved in regulation of intermediate and late steps of rRNA processing. May be involved in ribosome assembly. Mediates cap-independent translation of specific viral IRESs (internal ribosomal entry site). Regulates cell proliferation, differentiation, and survival. Isoform 1 suppresses apoptosis whereas isoform 2 promotes cell differentiation.

Gene References into Functions

Targeted profiling of RNA translation reveals mTOR-4EBP1/2-independent translation regulation of mRNAs encoding ribosomal proteins. PMID: 30224479
In this study, the authors demonstrated that overexpression of ErbB3-binding protein 1 (EBP1) promoted not only a reduction of wild type of p85 subunit of phosphoinositide 3-kinase but also oncogenic mutant forms of p85 which were identified in human cancers. PMID: 27464702
The results demonstrate an important role of Ebp1 in promoting cell proliferation in Acute Myelogenous Leukemic Cells through the regulation of both rRNA synthesis and Proliferating Cell Nuclear Antigen expression. PMID: 26813358
results show that EBP1 interacts directly with PPIns and associate with PtdIns(3,4,5)P3 in the nucleolus. PMID: 27118868
The adapter function of EBP1 P42 stabilized the interaction of FBXW7 with its substrates and promoted FBXW7-mediated degradation of oncogenic targets, enhancing its overall tumor-suppressing function. Results establish distinct physical and functional interactions between FBXW7 and EBP1 isoforms, which yield their mechanistically unique isoform-specific functions of EBP1 in cancer. PMID: 28209614
The combined determination of Ebp1 and p53 expression levels in cervical cancer patients could support the effective prediction of metastatic potential and patient prognosis. PMID: 26436510
Data highlight the tissue specificity function of EBP1 isoforms and show that only the oncogene p48 activates MHC II expression in human solid tumors, via STAT1 phosphorylation, in order to affect tumor progression by triggering specific immune response. PMID: 26081906
Our results suggest a novel function of Ebp1 as a binding protein and negative regulator of Anxa2. The functional association between Anxa2 and EBP1 may participate in regulating cancer cell proliferation and invasion, contributing to cancer progression. PMID: 25917452
Ebp1 functionality is independent from heat-shock-protein-regulated progression networks in prostate cancer. PMID: 24798454
P48Ebp1 acts as an oncoprotein. PMID: 25154617
EBP1 participates in the regulation of intestinal inflammation via mediating Akt signaling pathway. PMID: 26256794
Data suggest that inhibiting ErbB3-binding protein 1 Ebp1 phosphorylation may be an effective mechanism for inhibiting T-cell activation and proliferation. PMID: 25691158
Ebp1 p42 isoform regulates the proteasomal degradation of the p85 regulatory subunit of PI3K by recruiting a chaperone-E3 ligase complex HSP70/CHIP. PMID: 24651434
data suggest that Vpr may inhibit Ebp1 to stabilize p53, which in turn leads to G2 arrest and apoptosis in U87MG cells PMID: 23828502
identified among endothelial antigens to which antibodies are produced during heart transplant rejection PMID: 23707440
The major effect of EBP1 on ErbB2 mRNA expression levels is at the transcriptional level. PMID: 23242156
Down-regulation of the ErbB3 binding protein 1 in human bladder cancer promotes tumor progression and cell proliferation. PMID: 23283744
Performed immunohistochemical analysis on 132 primary adenoid cystic carcinoma and adjacent non-cancerous tissues.The expression of EBP1 was significantly higher in non-cancerous adjacent tissues compared with corresponding cancer tissues. PMID: 23110497
It was shown that high level of Ebp1 expression led to enhancee HDM2 phosphorylation by Akt and inhibited the self-ubiquitination of HDM2 by up-regulation of Akt activity. PMID: 21930127
the Ebp1 promoter localizes between -664 nt and the initiation site of the Ebp1 gene, +317-nt long sequence in the noncoding region is required for regulation of Ebp1 gene expression. PMID: 21794029
These studies suggest that one pathway of EBP1 down-regulation of AR levels may be lost in castration-resistant prostate cancer. PMID: 21965718
Ebp1 contributes to neuronal cell differentiation and growth factor specificity through the activation of protein kinase Cdelta acting as a crucial downstream effector of neurotrophin signaling. PMID: 21145366
Ablation of EBP1 expression led to tamoxifen resistance in breast cancer. PMID: 20379846
Data show that E2F is likely a central coordinator of multiple responses that culminate in regulation of EBP1 gene expression, and which may vary depending on cell type and context. PMID: 21085677
Findings suggest that eBP1 p48 functions as an oncogene by promoting glioma tumorigenicity via interactions with HDM2 that contribute to p53 downregulation. PMID: 21098709
our results reveal an EBP1-Foxa-AGR2 signaling circuit with functional significance in metastatic prostate cancer PMID: 20048076
EBP1 is in the cytoplasm & nucleolus. Nucleolar localization requires AA sequences at the NH2- and COOH-ends. Overexpression inhibits proliferation of human fibroblasts. It is part of RNP complexes & associates with different rRNAs. PMID: 15064750
ErbB3-binding protein Ebp1 binding to E2F promoter elements and E2F-mediated transcription are regulated by heregulin. PMID: 15073182
These studies suggest that Ebp1 is an AR corepressor whose biological activity can be regulated by the ErbB3 ligand, HRG. PMID: 15583694
Ebp1 suppresses androgen receptor-mediated gene transcription and tumorigenesis of prostate cancer cells. PMID: 15994225
Ebp1 is present in protein-ARE(bcl-2) RNA complexes. Ebp1 & nucleolin are present in the same bcl-2 mRNP complexes. Ebp1 decreases the rate of decay of beta-globin-ARE(bcl-2) transcripts. Ebp1 contributes to bcl-2 expression regulation in HL-60 cells. PMID: 16396631
Our results demonstrate that Ebp1 is a new dsRNA-binding protein that acts as a cellular inhibitor of eIF2alpha phosphorylation suggesting that it could be involved in protein translation control PMID: 16631606
over-expression of Ebp1 interfered with virus production PMID: 17295834
PKC-delta antagonizes apoptosis through phosphorylating Ebp1 and protects it from apoptotic degradation. PMID: 17316401
ErbB-3-binding protein-1 is an immunogenic protein with cancer-related immunoreactivity, capable of eliciting CD8-positive T cell-mediated responses in vivo and in vitro. PMID: 17641068
The structure provides insights in how Ebp1 discriminates between its different interaction partners. PMID: 17765895
ErbB-3-binding protein 1 (Ebp1) is a member of the family of proliferation-associated 2G4 proteins (PA2G4s) and plays a role in cellular growth and differentiation. PMID: 17768350
These results suggest that EBP1, by down-regulating ErbB signal transduction, attentuates HRG-mediated growth of breast cancer cells. PMID: 18355957
These data support a role for EBP1 in the development of hormone-refractory prostate cancer. PMID: 18852121
hBre1 inhibits Ebp1's tumor suppressive activity through mediating its polyubiquitination and degradation. PMID: 19037095

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Subcellular Location

[Isoform 1]: Cytoplasm. Nucleus, nucleolus.; [Isoform 2]: Cytoplasm.

Protein Families

Peptidase M24 family

Tissue Specificity

Isoform 2 is undetectable whereas isoform 1 is strongly expressed in cancer cells (at protein level). Isoform 1 and isoform 2 are widely expressed, including heart, brain, lung, pancreas, skeletal muscle, kidney, placenta and liver.

Database Links

HGNC: 8550

OMIM: 602145

KEGG: hsa:5036

STRING: 9606.ENSP00000302886

UniGene: Hs.524498

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Code	CSB-RA127029A0HU
Size	US$210
	Order now
Image	Western Blot Positive WB detected in: K562 whole cell lysate(30µg), HEK293 whole cell lysate(30µg) All lanes: PA2G4 antibody at 1:1000 Secondary Goat polyclonal to rabbit IgG at 1/50000 dilution Predicted band size: 44 kDa Observed band size: 44 kDa Exposure time: 2min Immunofluorescence staining of Hela cell with CSB-RA127029A0HU at 1:50, counter-stained with DAPI. The cells were fixed in 4% formaldehyde, permeabilized using 0.2% Triton X-100 and blocked in 10% normal Goat Serum. The cells were then incubated with the antibody overnight at 4°C. The secondary antibody was Alexa Fluor 488-congugated AffiniPure Goat Anti-Rabbit IgG(H+L). Overlay Peak curve showing HepG2 cells stained with CSB-RA127029A0HU (red line) at 1:100. The cells were fixed in 4% formaldehyde and permeated by 0.2% TritonX-100 for 10min. Then 10% normal goat serum to block non-specific protein-protein interactions followed by the antibody (1ug/110⁶cells) for 45min at 4℃. The secondary antibody used was FITC-conjugated goat anti-rabbit IgG (H+L) at 1/200 dilution for 35min at 4℃.Control antibody (green line) was Rabbit IgG (1ug/110⁶cells) used under the same conditions. Acquisition of >10,000 events was performed.
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PA2G4 Recombinant Monoclonal Antibody

Product Details

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Target Background