E2F1 Antibody - #DF6797

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Product: E2F1 Antibody
Catalog: DF6797
Description: Rabbit polyclonal antibody to E2F1
Application: WB IHC
Reactivity: Human, Mouse, Rat
Prediction: Pig, Bovine, Horse, Rabbit
Mol.Wt.: 47,70kDa; 47kD(Calculated).
Uniprot: Q01094
RRID: AB_2838759

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 100ul $280 In stock
 200ul $350 In stock

Lead Time: Same day delivery

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Related Downloads
MSDS
Data Sheet
COA
Protocols
WB Handbook
IHC Protocol
IF/ICC Protocol

Product Info

Source:
Rabbit
Application:
WB 1:500-1:2000, IHC 1:50-1:200
*The optimal dilutions should be determined by the end user.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human,Mouse,Rat
Prediction:
Pig(100%), Bovine(100%), Horse(100%), Rabbit(100%)
Clonality:
Polyclonal
Specificity:
E2F1 Antibody detects endogenous levels of total E2F1.
RRID:
AB_2838759
Cite Format: Affinity Biosciences Cat# DF6797, RRID:AB_2838759.
Conjugate:
Unconjugated.
Purification:
The antiserum was purified by peptide affinity chromatography using SulfoLink™ Coupling Resin (Thermo Fisher Scientific).
Storage:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

Dmel\CG6376; Dmel_CG6376; drosE2F1; E(Sev-CycE)3A; E(var)3-93E; E2-promoter binding facto; E2F 1; E2F transcription factor 1; E2F-1; E2f-PA; E2f-PB; E2f-PC; E2F1; E2f1 E2F transcription factor 1; E2F1_HUMAN; Evar(3)164; KIAA4009; l(3)07172; l(3)j3B1; l(3)j3C2; l(3)rM729; mKIAA4009; OTTHUMP00000030661; PBR3; PRB binding protein E2F 1; PRB-binding protein E2F-1; RBAP 1; RBAP-1; RBAP1; RBBP-3; RBBP3; RBP 3; RBP3; Retinoblastoma-associated protein 1; Retinoblastoma-binding protein 3; Transcription factor E2F1;

Immunogens

Immunogen:
Uniprot:

Q01094(E2F1_HUMAN) >>Visit HPA database.

Gene(ID):
E2F1(1869)
Description:
The E2F transcription factors are essential for regulation of the cell cycle (1,2). Physiological E2F is a heterodimer composed of an E2F subunit together with a DP subunit (3, 4). Six members of the E2F family have been identified, and each E2F subunit has a DNA binding and a dimerization domain. E2F-1 to -5 activate transcription. E2F-1 to -3 bind pRb, and E2F-4 and -5 bind p107 or p130, and these interactions are under cell cycle control (5-8). E2F-1 has oncogenic properties in vivo and in vitro. E2F-1 can induce apoptosis through p53-dependent and -independent mechanisms. E2F-1 is stress-responsive, and is regulated by a PI3-kinase-like kinase family such as the ATM/ATR kinases (9-11).
Sequence:
MALAGAPAGGPCAPALEALLGAGALRLLDSSQIVIISAAQDASAPPAPTGPAAPAAGPCDPDLLLFATPQAPRPTPSAPRPALGRPPVKRRLDLETDHQYLAESSGPARGRGRHPGKGVKSPGEKSRYETSLNLTTKRFLELLSHSADGVVDLNWAAEVLKVQKRRIYDITNVLEGIQLIAKKSKNHIQWLGSHTTVGVGGRLEGLTQDLRQLQESEQQLDHLMNICTTQLRLLSEDTDSQRLAYVTCQDLRSIADPAEQMVMVIKAPPETQLQAVDSSENFQISLKSKQGPIDVFLCPEETVGGISPGKTPSQEVTSEEENRATDSATIVSPPPSSPPSSLTTDPSQSLLSLEQEPLLSRMGSLRAPVDEDRLSPLVAADSLLEHVREDFSGLLPEEFISLSPPHEALDYHFGLEEGEGIRDLFDCDFGDLTPLDF

Predictions

Predictions:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Species
Results
Score
Pig
100
Horse
100
Bovine
100
Rabbit
100
Chicken
75
Zebrafish
63
Sheep
0
Dog
0
Xenopus
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

PTMs - Q01094 As Substrate

Site PTM Type Enzyme
Phosphorylation
S31 Phosphorylation Q13315 (ATM) , Q13535 (ATR)
T96 Phosphorylation
R109 Methylation
R111 Methylation
R113 Methylation
K117 Acetylation
K120 Acetylation
S121 Phosphorylation
K125 Acetylation
T135 Phosphorylation
T136 Phosphorylation
K161 Ubiquitination
K164 Ubiquitination
K185 Methylation
S307 Phosphorylation
S332 Phosphorylation Q9UHD2 (TBK1) , P06493 (CDK1)
S337 Phosphorylation P06493 (CDK1) , O43318 (MAP3K7)
S364 Phosphorylation O96017 (CHEK2) , P49137 (MAPKAPK2) , Q683Z8 (CHK2)
S375 Phosphorylation P49336 (CDK8)
S403 Phosphorylation P32780 (GTF2H1) , P49841 (GSK3B) , Q15759 (MAPK11) , O15111 (CHUK) , P50613 (CDK7)
T433 Phosphorylation P49841 (GSK3B) , P32780 (GTF2H1) , P50613 (CDK7) , Q15759 (MAPK11)

Research Backgrounds

Function:

Transcription activator that binds DNA cooperatively with DP proteins through the E2 recognition site, 5'-TTTC[CG]CGC-3' found in the promoter region of a number of genes whose products are involved in cell cycle regulation or in DNA replication. The DRTF1/E2F complex functions in the control of cell-cycle progression from G1 to S phase. E2F1 binds preferentially RB1 in a cell-cycle dependent manner. It can mediate both cell proliferation and TP53/p53-dependent apoptosis. Blocks adipocyte differentiation by binding to specific promoters repressing CEBPA binding to its target gene promoters. Positively regulates transcription of RRP1B.

PTMs:

Phosphorylated by CDK2 and cyclin A-CDK2 in the S-phase. Phosphorylation at Ser-364 by CHEK2 stabilizes E2F1 upon DNA damage and regulates its effect on transcription and apoptosis.

Acetylation stimulates DNA-binding. Enhanced under stress conditions such as DNA damage and inhibited by retinoblastoma protein RB1. Regulated by KAP1/TRIM28 which recruits HDAC1 to E2F1 resulting in deacetylation. Acetylated by P/CAF/KAT2B.

Subcellular Location:

Nucleus.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Subunit Structure:

Component of the DRTF1/E2F transcription factor complex. Forms heterodimers with DP family members. The E2F1 complex binds specifically hypophosphorylated retinoblastoma protein RB1. During the cell cycle, RB1 becomes phosphorylated in mid-to-late G1 phase, detaches from the DRTF1/E2F complex, rendering E2F transcriptionally active. Viral oncoproteins, notably E1A, T-antigen and HPV E7, are capable of sequestering RB1, thus releasing the active complex. Interacts with TRRAP, which probably mediates its interaction with histone acetyltransferase complexes, leading to transcription activation. Binds TOPBP1 and EAPP. Interacts with ARID3A. Interacts with TRIM28; the interaction inhibits E2F1 acetylation through recruiting HDAC1 and represses its transcriptional activity. Interaction with KAT2B; the interaction acetylates E2F1 enhancing its DNA-binding and transcriptional activity. Interacts with BIRC2/c-IAP1 (via BIR domains). The complex TFDP1:E2F1 interacts with CEBPA; the interaction prevents CEBPA binding to target genes promoters and represses its transcriptional activity. Interacts with RRP1B. Interacts with HCFC1. Interacts with KMT2E; the interaction is probably indirect and is mediated via HCFC1.

(Microbial infection) Interacts with human cytomegalovirus/HHV-5 protein UL123.

Family&Domains:

Belongs to the E2F/DP family.

Research Fields

· Cellular Processes > Cell growth and death > Cell cycle.   (View pathway)

· Cellular Processes > Cell growth and death > Cellular senescence.   (View pathway)

· Human Diseases > Drug resistance: Antineoplastic > Endocrine resistance.

· Human Diseases > Infectious diseases: Viral > Hepatitis B.

· Human Diseases > Infectious diseases: Viral > Human papillomavirus infection.

· Human Diseases > Infectious diseases: Viral > HTLV-I infection.

· Human Diseases > Cancers: Overview > Pathways in cancer.   (View pathway)

· Human Diseases > Cancers: Overview > MicroRNAs in cancer.

· Human Diseases > Cancers: Specific types > Pancreatic cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Glioma.   (View pathway)

· Human Diseases > Cancers: Specific types > Prostate cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Melanoma.   (View pathway)

· Human Diseases > Cancers: Specific types > Bladder cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Chronic myeloid leukemia.   (View pathway)

· Human Diseases > Cancers: Specific types > Small cell lung cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Non-small cell lung cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Breast cancer.   (View pathway)

· Human Diseases > Cancers: Specific types > Hepatocellular carcinoma.   (View pathway)

· Human Diseases > Cancers: Specific types > Gastric cancer.   (View pathway)

References

1). Histone acetylation plays an important role in MC-LR-induced apoptosis and cycle disorder in SD rat testicular cells. Chemosphere, 2020 (PubMed: 31683423) [IF=8.8]

Application: WB    Species: Rat    Sample: testicular tissue

Fig4. The effect of TSA and MC-LR on cell cycle-related genes and proteins 434 levels in co-cultured Sertoli-germ cells and SD rat testicular tissues. (A) 435 Expressions of cell cycle-related genes in vitro and (B) expressions of cell 436 cycle-related genes in vivo were detected by RT-qPCR. (C) Expressions of cell cycle-related proteins in vitro and (D) expressions of cell cycle-related proteins in 438 vivo were detected by western blotting. (E) Quantitative analysis of proteins 439 expression levels in vitro. (F) Quantitative analysis of proteins expression levels in 440 vivo. (*P<0.05 vs. the control group; #P<0.05 vs. the 36 µM MC-LR group or the 40 441 µg kg-1 MC-LR group)
2). CENPF knockdown inhibits adriamycin chemoresistance in triple-negative breast cancer via the Rb-E2F1 axis. Scientific Reports, 2023 (PubMed: 36720923) [IF=4.6]

Application: WB    Species: Human    Sample: MDA-MB-231 cell

Figure 4 The Rb-E2F1 axis mediates the regulation of Chk1 expression by CENPF. (A) Colocalization of CENPF and Rb in MDA-MB-231 and MDA-MB-231/ADR cells. (B,C) Western blotting detected the binding protein of immunoprecipitated endogenous CENPF (B) or Rb (Rb). (D) Co-IP and western blotting demonstrated that CENPF and E2F1 compete for Rb binding. (E,F) Western blot analysis of the effect of CENPF knockdown on E2F1 expression.
3). CENPF Knockdown Inhibits Adriamycin Chemoresistance in Triple Negative Breast Cancer mediated by Rb-E2F1-Chk1 Axis. Research Square, 2022

Application: WB    Species: Human    Sample:

Figure 4. Rb-E2F1 axis mediates regulation of CENPF on Chk1 expression. A-B Western blot showed CENPF knockdown inhibited Rb phosphorylation in MDA-MB-231 (A) and MDA-MB-231/ADR (B). C Co-localization detections of CENPF and Rb in MDA-MB-231 and MDA-MB-231/ADR. The correlation of immunofluorescence colocalization was tested by Pearson´s coefficient. D Western blot detected the binding protein of immunoprecipitated endogenous CENPF (D) or Rb (E). F Co-IP and western blot demonstrated that CENPF and E2F1 compete for Rb binding.

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