Product Details

Uniprot No.

Target Names

Alternative Names

50 kDa Nuclear polyadenylated RNA binding protein antibody; 50 kDa nuclear polyadenylated RNA-binding protein antibody; Bruno like 2 antibody; bruno like protein 2 antibody; Bruno-like protein 2 antibody; BRUNOL 2 antibody; BRUNOL2 antibody; CELF 1 antibody; CELF-1 antibody; celf1 antibody; CELF1 CUGBP, Elav like family member 1 antibody; CELF1_HUMAN antibody; CUG BP and ETR 3 like factor 1 antibody; CUG BP antibody; CUG BP1 antibody; CUG RNA binding protein antibody; CUG triplet repeat RNA binding protein 1 antibody; CUG triplet repeat RNA-binding protein 1 antibody; CUG-BP antibody; CUG-BP- and ETR-3-like factor 1 antibody; CUG-BP1 antibody; CUGBP 1 antibody; CUGBP and ETR3 like factor 1 antibody; CUGBP antibody; CUGBP Elav like family member 1 antibody; CUGBP Elav-like family member 1 antibody; CUGBP1 antibody; Cytidine uridine guanosine binding protein 1 antibody; Deadenylation factor CUG BP antibody; Deadenylation factor CUG-BP antibody; Deadenylation factor CUGBP antibody; EDEN BP antibody; EDEN BP homolog antibody; EDEN-BP antibody; EDEN-BP homolog antibody; embryo deadenylation element binding protein antibody; embryo deadenylation element binding protein homolog antibody; Embryo deadenylation element-binding protein homolog antibody; hNab 50 antibody; hNab50 antibody; NAB 50 antibody; NAB50 antibody; NAPOR antibody; Nuclear polyadenylated RNA binding protein 50 kD antibody; Nuclear polyadenylated RNA binding protein antibody; RNA binding protein BRUNOL 2 antibody; RNA binding protein BRUNOL2 antibody; RNA-binding protein BRUNOL-2 antibody

Species Reactivity

Human, Mouse

Immunogen

A synthesized peptide derived from human CELF1

Immunogen Species

Homo sapiens (Human)

Conjugate

Non-conjugated

Clonality

Monoclonal

Isotype

Rabbit IgG

Clone No.

1G2

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, IF, FC

Recommended Dilution

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

Protocols

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

CELF1 (CUG-BP, Elav-like family member 1) is an RNA-binding protein that plays essential roles in post-transcriptional gene regulation, including alternative splicing, mRNA stability, and translation control. This multifunctional protein has garnered significant research interest due to its involvement in muscle development, cardiac function, and neurological processes. Dysregulation of CELF1 has been implicated in myotonic dystrophy and various cancers, making it a compelling target for researchers investigating RNA metabolism and disease mechanisms.

This recombinant monoclonal antibody, generated against a synthetic peptide derived from human CELF1, offers the reproducibility and consistency that demanding experimental workflows require. As a sequence-defined reagent produced through recombinant technology, it eliminates the lot-to-lot variability often encountered with traditional hybridoma-derived antibodies, ensuring your results remain comparable across extended studies.

Extensive validation demonstrates this antibody's versatility across multiple applications. Western blot analysis detects CELF1 across diverse human cell lines including U-937, U-251MG, SH-SY5Y, A549, HepG2, and HeLa, as well as mouse NIH/3T3 cells, confirming cross-species reactivity with both human and mouse samples. The observed band at approximately 55 kDa, slightly higher than the predicted 52 kDa molecular weight, likely reflects post-translational modifications such as phosphorylation, which is known to regulate CELF1 activity. Immunohistochemistry validation in human breast cancer and stomach tissue sections demonstrates reliable performance in FFPE samples, while immunofluorescence and flow cytometry applications have been confirmed in HeLa cells.

This antibody serves researchers investigating RNA biology, neurodegenerative disease, cancer progression, and developmental biology where precise CELF1 detection is essential.

Usage

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

Related Products

Target Background

Function

RNA-binding protein implicated in the regulation of several post-transcriptional events. Involved in pre-mRNA alternative splicing, mRNA translation and stability. Mediates exon inclusion and/or exclusion in pre-mRNA that are subject to tissue-specific and developmentally regulated alternative splicing. Specifically activates exon 5 inclusion of cardiac isoforms of TNNT2 during heart remodeling at the juvenile to adult transition. Acts as both an activator and repressor of a pair of coregulated exons: promotes inclusion of the smooth muscle (SM) exon but exclusion of the non-muscle (NM) exon in actinin pre-mRNAs. Activates SM exon 5 inclusion by antagonizing the repressive effect of PTB. Promotes exclusion of exon 11 of the INSR pre-mRNA. Inhibits, together with HNRNPH1, insulin receptor (IR) pre-mRNA exon 11 inclusion in myoblast. Increases translation and controls the choice of translation initiation codon of CEBPB mRNA. Increases mRNA translation of CEBPB in aging liver. Increases translation of CDKN1A mRNA by antagonizing the repressive effect of CALR3. Mediates rapid cytoplasmic mRNA deadenylation. Recruits the deadenylase PARN to the poly(A) tail of EDEN-containing mRNAs to promote their deadenylation. Required for completion of spermatogenesis. Binds to (CUG)n triplet repeats in the 3'-UTR of transcripts such as DMPK and to Bruno response elements (BREs). Binds to muscle-specific splicing enhancer (MSE) intronic sites flanking the alternative exon 5 of TNNT2 pre-mRNA. Binds to AU-rich sequences (AREs or EDEN-like) localized in the 3'-UTR of JUN and FOS mRNAs. Binds to the IR RNA. Binds to the 5'-region of CDKN1A and CEBPB mRNAs. Binds with the 5'-region of CEBPB mRNA in aging liver. May be a specific regulator of miRNA biogenesis. Binds to primary microRNA pri-MIR140 and, with CELF2, negatively regulates the processing to mature miRNA.

Gene References into Functions

results underscore novel roles of CELF1 in melanoma, illustrating tumor type-restricted functions of mRNA binding proteins in cancer. PMID: 29269732
These data present an 11-component genetic pathway, invisible to transcriptional profiling approaches, in which the CELF1 protein functions as a central node controlling translational activation of genes driving EMT and ultimately tumour progression. PMID: 27869122
High CELF1 expression is associated with aberrant splicing in Type 1 diabetes. PMID: 28512194
CELF1 globally regulates the alternative splicing. PMID: 28733224
Findings indicate that IGF2R expression is controlled posttranscriptionally by two factors that associate with Igf2r mRNA and suggest that miR-195 and CUGBP1 dampen IGF signaling by inhibiting IGF2R translation. PMID: 28716948
In the course of these studies, we found that RNA binding protein CUGBP1 is a new tumor suppressor protein which is reduced in all HBL samples. Therefore, we generated CUGBP1 KO mice and examined HBL signatures in the liver of these mice. Micro-array studies revealed that the HBL-specific molecular signature is developed in livers of CUGBP1 KO mice at very early ages PMID: 28535186
Results show that CELF1 is a potential target of TUG1 interaction and could be negatively regulated by TUG1 RNA. PMID: 27485439
CUG-binding protein 1 regulates HSC activation and liver fibrogenesis. PMID: 27853137
High expression of CUGBP1 is associated with recurrence in lung adenocarcinoma. PMID: 26728670
CUG-BP1 affected the calcium release activity in single myofibers and the extent of atrophy was significantly reduced upon gene silencing of CUG-BP1 in atrophic muscle. PMID: 26531141
these data provided a comprehensive view of the CELF1 mRNA regulatory network in oral cancer PMID: 26498364
forced expression of miR-214-3p enhances the sensitivity of esophageal cancer cells to cisplatin-induced apoptosis. This effect is abrogated with rescue expression of survivin or CUG-BP1 PMID: 26234674
Expression of several genes within the CELF1 locus, including MTCH2, were highly correlated with one another and were associated with Alzheimer's disease status. PMID: 26919393
CUGBP1 and HuR negate each other's effects in regulating E-cadherin translation by altering the recruitment of E-cadherin mRNA to PBs and play important roles in the regulation of intestinal barrier integrity. PMID: 26491048
CUGBP1 promotes cell proliferation and suppresses apoptosis via down-regulating C-EBPalpha in human non-small cell lung cancers. PMID: 25701464
The results indicate that the cellular level of miR-122 is determined by the balance between the opposing effects of GLD-2 and PARN/CUGBP1 on the metabolism of its 3'-terminus. PMID: 26130707
CELF1 dysfunction in malignant T cells led to the up-regulation of a subset of GRE-containing transcripts that promote cell growth and down-regulation of another subset that suppress cell growth PMID: 26249002
Celf1 has a role in vegetal RNA localization during Xenopus oogenesis PMID: 26164657
These results demonstrate the importance of CUGBP1 in the biological and pathological functions of NSCLC and indicate its potential as a therapeutic target for NSCLC. PMID: 25619475
The result is consistent with the hypothesis that MBNL proteins are trapped by expanded CUG repeats and inactivated in myotonic dystrophy type 1 (DM1) and that CELF1 is activated in DM1. PMID: 25403273
CUGBP1 has a critical role in modulating cell growth and apoptosis PMID: 25077823
the size and the number of colonies formed in gastric cancer MGC-803 cells were markedly reduced in the absence of CUGBP1 PMID: 24818870
CUGBP1 seems to play a role in classic DM1 but not in DM2 PMID: 24376746
The Alzheimer's disease single nucleotide polymorphism rs10838725 (pAD = 1.1 x 10(-08)) at the locus CELF1 is also genome-wide significant for obesity. PMID: 24788522
Data suggest a model for RNA binding protein CELF1/CUGBP1-mediated regulation of alternative polyadenylation (APA). PMID: 25123787
CUGBP1 was expressed in 85.7% hepatocellular carcinoma specimens compared with 50% in normal liver specimens. CUGBP1 silencing remarkably decreased the proliferation of HepG2 cells. PMID: 24502807
High CUGBP1 expression is associated with non-small cell lung cancer. PMID: 23359188
CELF1 depletion induces apoptosis in tumor cells, but not in normal cells. PMID: 23324604
CUGBP1 represses occludin translation by increasing occludin mRNA recruitment to P-bodies. PMID: 23155001
study suggests that regulation of CUGBP1 and MBNL1 is essential for accurate control of destabilization of a broad spectrum of mRNAs as well as of alternative splicing events PMID: 22355723
The results suggest that CUG-BP1 binds to nucleotides 51-100 of the human albumin 3'UTR. In human cells CUG-BP1 binding may thus play a role in regulation of albumin expression and, additionally, it may have a function in post-transcriptional control in CHO cells. PMID: 22982313
CUG-BP1 is overexpressed in oesophageal cancer cell lines and human oesophageal cancer specimens. CUG-BP1 associates with the 3'-untranslated region of survivin mRNA. PMID: 22646166
CUG-binding protein represses translation of p27Kip1 mRNA through its internal ribosomal entry site PMID: 21508681
CUGBP1 binding to certain GRE-containing target transcripts decreased following T cell activation through activation-dependent phosphorylation of CUGBP1. PMID: 22117072
Stress granules component CUGBP1 was identified as a factor required for p21 mRNA stabilization. PMID: 21637851
Data show that crystal structures of CUGBP1 RRM1 and tandem RRM1/2 domains bound to RNAs containing tandem UGU(U/G) elements. PMID: 20947024
Overexpression of CUGBP1 in mouse skeletal muscle reproduces features of myotonic dystrophy type 1. PMID: 20603324
identified 613 putative mRNA targets of CUGBP1 and found that the UGUUUGUUUGU GU-rich elements (GREs) sequence and a GU-repeat sequence were both highly enriched in the 3' UTRs of these targets PMID: 20547756
These results strongly support a role for CUGBP1 up-regulation in myotonic dystrophy type 1 pathogenesis. PMID: 20051426
CUGBP1 directly controls CD9 expression. PMID: 20227387
CUG-BP and Xenopus EDEN-BP have very similar RNA-binding specificities; it is suggested that the CUG expansion associated with Type 1 myotonic dystrophy can affect the function of CUG-BP, leading to a trans-dominant effect on normal RNA processing PMID: 12799066
Data show that epidermal growth factor receptor signaling results in phosphorylation of CUG-BP1, and leads to increased binding of CUG-BP1 to CCAAT/enhancer binding protein beta (C/EBP beta) mRNA and elevated expression of the C/EBPbeta LIP isoform. PMID: 15082764
The results of this study suggest that the CUG expansion may bind to complementary sequences within the CUGBP1 mRNA and that this molecular interaction may affect CUGBP1 mRNA expression in DM1. PMID: 15099703
CUG-BP, therefore, is the first RNA-binding protein shown to directly recruit a deadenylase to an RNA substrate.CUG-BP interacts with PARN in extracts by coimmunoprecipitation, and this interaction can be recapitulated using recombinant proteins PMID: 16601207
coordinated physical and functional interactions between hnRNP H, CUG-BP1 and MBNL1 dictate IR splicing in normal and DM1 myoblasts PMID: 16946708
transcription of Cugbp1 gene in muscle is regulated by myogenin and E proteins PMID: 17531403
Insertional disruption of the CUGBP1 gene is associated with leukemogenesis PMID: 17854664
Data show that expression of DMPK-CUG-repeat RNA results in hyperphosphorylation and stabilization of CUGBP1, and suggest that inappropriate activation of the PKC pathway contributes to the pathogenic effects of a noncoding RNA. PMID: 17936705
CUG-BP1 specifically recognized UG repeats, probably through cooperative binding of RNA recognition motifs at both ends of the protein. PMID: 18039683
These results demonstrate the dynamic behavior of CUGBP-1 during stress response and that the linker region, in concert with RRMs, plays a significant role in defining its subcellular localization and dynamics. PMID: 18164289

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Subcellular Location

Nucleus. Cytoplasm. Note=RNA-binding activity is detected in both nuclear and cytoplasmic compartments.

Protein Families

CELF/BRUNOL family

Tissue Specificity

Ubiquitous.

Database Links

HGNC: 2549

OMIM: 601074

KEGG: hsa:10658

STRING: 9606.ENSP00000435926

UniGene: Hs.595333

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Code	CSB-RA561537A0HU
Size	US$210
	Order now
Image	Western Blot Positive WB detected in: U-937 whole cell lysate(20µg),U-251MG whole cell lysate(20µg), SH-SY5Y whole cell lysate(20µg), A549 whole cell lysate(20µg),HepG2 whole cell lysate(20µg),NIH/3T3 whole cell lysate(20µg),Hela whole cell lysate(20µg) All lanes: CELF 1 antibody at 1:1000 Secondary Goat polyclonal to rabbit IgG at 1/40000 dilution Predicted band size: 52 kDa Observed band size: 55 kDa Exposure time：1min20s IHC image of CSB-RA561537A0HU 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°C overnight. The primary is detected by a Goat anti-rabbit polymer IgG labeled by HRP and visualized using 0.05% DAB. IHC image of CSB-RA561537A0HU diluted at 1:100 and staining in paraffin-embedded human stomach tissue 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°C overnight. The primary is detected by a Goat anti-rabbit polymer IgG labeled by HRP and visualized using 0.05% DAB. Immunofluorescence staining of Hela cell with CSB-RA561537A0HU 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 Hela cells stained with CSB-RA561537A0HU (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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CELF1 Recombinant Monoclonal Antibody

Product Details

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Target Background