Product Details

Uniprot No.

Target Names

PELP1

Alternative Names

Proline-, glutamic acid- and leucine-rich protein 1 (Modulator of non-genomic activity of estrogen receptor) (Transcription factor HMX3), PELP1, HMX3 MNAR

Species Reactivity

Human

Immunogen

A synthesized peptide derived from human PELP1

Immunogen Species

Homo sapiens (Human)

Conjugate

Non-conjugated

Clonality

Monoclonal

Isotype

Rabbit IgG

Clone No.

6H4

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, IHC

Recommended Dilution

Application	Recommended Dilution
WB	1:500-1:5000
IHC	1:50-1:200

Protocols

ELISA Protocol
Western Blotting(WB) Protocol
Immunohistochemistry (IHC) 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

PELP1 (Proline-, glutamic acid- and leucine-rich protein 1) serves as a critical scaffold protein that modulates estrogen receptor signaling through both genomic and non-genomic pathways. As a coregulator that bridges nuclear receptors with various signaling cascades, PELP1 has emerged as a significant focus in cancer biology research, particularly in hormone-responsive malignancies where its dysregulation contributes to tumor progression and therapeutic resistance.

This recombinant monoclonal antibody, generated from clone 6H4, offers the reproducibility and sequence-defined consistency that demanding experimental workflows require. Because recombinant production eliminates the batch variability inherent in traditional hybridoma methods, researchers can confidently compare results across extended studies without concerns about antibody drift affecting their data.

Validation testing demonstrates robust performance across multiple platforms. In western blot applications, this antibody reliably detects PELP1 in a diverse panel of human cell lines including HeLa, Jurkat, 293, MCF-7, 293T, and HepG2 lysates at dilutions ranging from 1:500 to 1:5000. The observed band at approximately 160 kDa runs higher than the predicted 120 kDa molecular weight, a shift commonly attributed to post-translational modifications such as glycosylation or the protein's proline-rich composition affecting gel migration. For immunohistochemistry applications, the antibody has been validated in paraffin-embedded human breast cancer and cervical cancer tissues at 1:50 to 1:200 dilutions using citrate buffer antigen retrieval, producing clear nuclear staining patterns consistent with PELP1's known localization.

This antibody supports investigations into epigenetics, nuclear signaling, and signal transduction pathways, making it particularly valuable for researchers exploring estrogen receptor biology, transcriptional regulation, and hormone-dependent cancer mechanisms.

Usage

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

Target Background

Function

Coactivator of estrogen receptor-mediated transcription and a corepressor of other nuclear hormone receptors and sequence-specific transcription factors. Plays a role in estrogen receptor (ER) genomic activity when present in the nuclear compartment by activating the ER target genes in a hormonal stimulation dependent manner. Can facilitate ER non-genomic signaling via SRC and PI3K interaction in the cytosol. Plays a role in E2-mediated cell cycle progression by interacting with RB1. May have important functional implications in ER/growth factor cross-talk. Interacts with several growth factor signaling components including EGFR and HRS. Functions as the key stabilizing component of the Five Friends of Methylated CHTOP (5FMC) complex; the 5FMC complex is recruited to ZNF148 by methylated CHTOP, leading to desumoylation of ZNF148 and subsequent transactivation of ZNF148 target genes. Component of the PELP1 complex involved in the nucleolar steps of 28S rRNA maturation and the subsequent nucleoplasmic transit of the pre-60S ribosomal subunit. Regulates pre-60S association of the critical remodeling factor MDN1. May promote tumorigenesis via its interaction with and modulation of several oncogenes including SRC, PI3K, STAT3 and EGFR. Plays a role in cancer cell metastasis via its ability to modulate E2-mediated cytoskeleton changes and cell migration via its interaction with SRC and PI3K.

Gene References into Functions

High PELP1 expression is associated with inflammation and breast cancer. PMID: 27881676
three techniques for the first time demonstrated the presence of the PELP1 in paraspinal muscles of patients with idiopathic scoliosis. PMID: 27045366
PELP1 interacted with GR to activate Brk expression. PMID: 26825173
we propose that PELP1/Ki-67 double high expression in tumors is an independent prognostic factor for predicting a poor outcome for patients with Triple-negative breast cancer PMID: 26472563
There is mounting evidence that PELP1 plays key roles in several biological processes and its deregulation leads to the development of cancers. PMID: 26158753
There are significantly higher amounts of PELP1 transcript and protein in tumor tissues in patients with non-small cell lung cancer. PMID: 26211588
The diffuse and strong nuclear immunoreactivity of PELP1 in most cases suggests that PELP1 may be a molecular target for the treatment of triple-negative breast carcinoma PMID: 26428280
Results show that PELP1 is highly phosphorylated in triple negative breast cancer cells and interacts with mutated Tp53 and E2F1 to differentially regulates their target gene expression. PMID: 25788226
The PELP1 interacts with p53, functions as p53-coactivator and is required for optimal activation of p53 target genes under genomic stress. PMID: 24786831
unliganded PR-B enhanced proliferative responses to estradiol and IGF1 via scaffolding of ER-alpha/PELP1/IGF1R-containing complexes PMID: 24469035
our data identified the PELP1-mTOR axis as a novel component of PELP1 oncogenic functions and suggest that mTOR inhibitor(s) will be effective chemotherapeutic agents for downregulating PELP1 oncogenic functions. PMID: 24688046
This review focuses on the interactive functions and therapeutic and prognostic significance of PELP1 in breast and prostate cancers. PMID: 24859989
PELP1 exhibits an oncogenic function in colorectal cancer through c-Src upregulation. PMID: 24967003
Overexpression of PELP1 in Chinese women with primary breast cancer appears to be associated with biomarkers of poor outcome; these results are similar to other reports based on Western populations. PMID: 24627205
PELP1 oncogenic functions involve alternative splicing via PRMT6. PMID: 24447537
PELP1 regulates tumor metastasis by controlling the expression and functions of the tumor metastasis suppressors miR-200a and miR-141 PMID: 23975430
MacroH2A1 specifically recruits PELP1 to the promoters of macroH2A1 target genes, but macroH2A1 occupancy occurs independent of PELP1. This recruitment allows macroH2A1 and PELP1 to cooperatively regulate gene expression outcomes. PMID: 24752897
results suggest that PELP1/MNAR plays a role in endometrial cancer progression and metastasis PMID: 22992812
PELP1 may enable estradiol-induced androgen receptor (AR) signaling by forming a protein complex between AR, estrogen receptor beta, and PELP1 on the DNA, leading to the proliferation of prostate cancer cells in the absence of androgen. PMID: 22403175
PELP1 may be a potential therapeutic target for metastatic ER-negative breast cancer. PMID: 22086908
Univariate survival analysis revealed that high PELP1 expression was associated with worse prognosis in astrocytic brain tumors PMID: 21735116
proto-oncogene PELP1 plays a vital role in rDNA transcription PMID: 21695158
Results suggest that PELP1 signaling axis is a potential druggable target and liposomal PELP1-siRNA-DOPC could be used as a novel drug to prevent or treat ovarian metastasis. PMID: 21421858
These data define the PELP1-TEX10-WDR18 complex as a regulator of ribosome biogenesis and suggests that its SUMO-controlled distribution coordinates the rate of ribosome formation. PMID: 21326211
PELP1 protein expression is an independent prognostic predictor of shorter breast-cancer-specific survival and disease-free interval in breast cancer. Its elevated expression is positively associated with markers of poor outcome. PMID: 19495959
PELP1 regulation of aromatase P450 (Cyp19), represent a novel mechanism for in situ estrogen synthesis leading to tumor proliferation by autocrine loop and open a new avenue for ablating local aromatase activity in breast tumors. PMID: 19800002
PELP1, a steroid coactivator, plays a permissive role in E2-mediated cell cycle progression, presumably via its regulatory interaction with the pRb pathway PMID: 12682072
Results provide novel insights about the transcription regulation of PELP1 and suggest that PELP1 participates in chromatin remodeling activity via displacement of histone 1 in cancer cells. PMID: 15374949
PELP1 recruits HDAC2 and masks histones using two separate domains PMID: 15456770
PELP1 expression and localization are widely deregulated in endometrial cancers. PELP1 and ERbeta were localized predominantly in cytoplasm of high-grade endometrial tumors. PELP1 may play essential role in proliferation of cancerous endometrial cells. PMID: 15579769
PELP1 / MNAR and estrogen receptor beta are coexpressed in most salivary duct carcinoma and may play a role in the pathobiology of these tumors. PMID: 16021574
Results suggest that the altered localization of PELP1 modulates sensitivity to antiestrogens, potentiates tumorigenicity via the activation of MAPK and AKT, and enhances cross-regulation of ER transactivation activity by growth factors. PMID: 16140940
Presence of MNAR in the cell nucleus indicates that it may play a role in regulation of gene expression. PMID: 16297421
role of HRS in up-regulating MAPK, presumably involving interaction with PELP1. PMID: 16352611
PELP1/MNAR increases estradiol-mediated cell proliferation and participates in estradiol mediated tumorigenesis and metastasis. [REVIEW] PMID: 16826428
PELP1/MNAR may contribute to the tumorigenic potential of cancer cells by serving as a scaffolding protein that couples various signaling complexes with Estrogen Receptors (review) PMID: 17128415
PELP1 functions as a molecular adaptor, coupling FHL2 with nuclear receptors, and PELP1-FHL2 interactions may have a role in prostate cancer progression. PMID: 17192406
Data suggest that PELP1 is a potential oncogene, that its expression is deregulated during cancer progression, and that PELP1 may play a role in oncogenesis. PMID: 17545633
PELP1 and HRS reallocate to autophagosomes in response to resveratrol treatment, which might be important in the process of autophagy in the cancer cells. PMID: 17804729
PELP1 signaling and its interactions with growth factor signaling components and orphan nuclear reactors may locally influence production of estradiol and promote tumor growth by promoting estrogen receptor autocrine signaling. PMID: 18079323
MNAR plays an important role in ERa activation of Src/MAPK and PI3K/Akt signaling pathways [review] PMID: 18261753
growth factor signals promote phosphorylation of ER coactivator PELP1 via PKA pathway, and such modification may have functional implications in breast tumors with deregulated growth factor signaling PMID: 18505929
Overexpression of PELP1 is associated with ovarian tumorigenesis PMID: 18559538
MNAR interacts with glucocorticoid receptor(GR) in the nucleus but not cytoplasm and regulates GR transactivation in a complex manner depending on cell type. MNAR is capable of regulating both AF1 and AF2 functions of the GR independently. PMID: 18682536
Statistical analysis revealed an increase in PELP1 expression in myofibroblasts from normal mucosa through adenomas to colorectal carcinomas. PMID: 19048289
ERalpha is rarely expressed while ERbeta and PELP1/MNAR are involved in colorectal tumorigenesis. PMID: 19478391
PELP1 is a coactivator of estrogen receptor (ER), interacts with ER, and may have a role in mammary tumorigenesis. PMID: 11481323

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Subcellular Location

Nucleus, nucleolus. Nucleus, nucleoplasm. Nucleus. Cytoplasm.

Protein Families

RIX1/PELP1 family

Tissue Specificity

Widely expressed.

Database Links

HGNC: 30134

OMIM: 609455

KEGG: hsa:27043

STRING: 9606.ENSP00000301396

UniGene: Hs.744899

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Code	CSB-RA999292A0HU
Size	US$210
	Order now
Image	Western Blot Positive WB detected in: Hela whole cell lysate, Jurkat whole cell lysate, 293 whole cell lysate, MCF-7 whole cell lysate, 293T whole cell lysate, HepG2 whole cell lysate All lanes: PELP1 antibody at 1:1000 Secondary Goat polyclonal to rabbit IgG at 1/50000 dilution Predicted band size: 120 kDa Observed band size: 160 kDa IHC image of CSB-RA999292A0HU diluted at 1:100 and staining in paraffin-embedded human breast cancer performed on a Leica BondTM system. After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30min at RT. Then primary antibody (1% BSA) was incubated at 4℃ overnight. The primary is detected by a Goat anti-rabbit IgG polymer labeled by HRP and visualized using 0.05% DAB. IHC image of CSB-RA999292A0HU diluted at 1:100 and staining in paraffin-embedded human cervical cancer performed on a Leica BondTM system. After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30min at RT. Then primary antibody (1% BSA) was incubated at 4℃ overnight. The primary is detected by a Goat anti-rabbit IgG polymer labeled by HRP and visualized using 0.05% DAB.
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PELP1 Recombinant Monoclonal Antibody

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Target Background