Rabbit 53BP1 Polyclonal Antibody | anti-53BP1 antibody

53BP1 Antibody

Cat. Num. AAA9613467

• Gene Names: TP53BP1; p202; 53BP1
• Reactivity: Human, Rat; Predicted Reactivity: Pig (100%), Zebrafish (91%), Horse (100%), Sheep (100%), Dog (100%), Chicken (100%), Xenopus (92%)
• Applications: Western Blot, Immunofluorescence, Immunocytochemistry, ELISA
• Purity: The antiserum was purified by peptide affinity chromatography using SulfoLink Coupling Resin
• Synonyms: 53BP1; Polyclonal Antibody; 53BP1 Antibody; 53 BP1; FLJ41424; MGC138366; p202; p53 binding protein 1; p53 BP1; p53-binding protein 1; p53BP1; TP53 BP1; TP53B_HUMAN; Tp53bp1; TRP53 BP1; Tumor protein 53 binding protein 1; Tumor protein p53 binding protein 1; Tumor suppressor p53 binding protein 1; Tumor suppressor p53-binding protein 1; anti-53BP1 antibody

• Host: Rabbit
• Reactivity: Human, Rat; Predicted Reactivity: Pig (100%), Zebrafish (91%), Horse (100%), Sheep (100%), Dog (100%), Chicken (100%), Xenopus (92%)
• Clonality: Polyclonal
• Isotype: Rabbit IgG
• Specificity: 53BP1 Antibody detects endogenous levels of total 53BP1.
• Purity/Purification: The antiserum was purified by peptide affinity chromatography using SulfoLink Coupling Resin
• Form/Format: Liquid. Rabbit IgG in phosphate buffered saline, pH7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
• Concentration: 1mg/ml (varies by lot)

• Applicable Applications for anti-53BP1 antibody: Western Blot (WB), Immunofluorescence (IF), Immunocytochemistry (ICC), Peptide ELISA (EIA)
• Application Notes: WB: 1:500-1:2000; IF/ICC: 1:100-1:500; Peptide ELISA: 1:20,000-1:40,000
• Immunogen: A synthesized peptide derived from human 53BP1, corresponding to a region within the internal amino acids.
• Conjugation: Unconjugated
• Fragment: Fab fragment
• Post Translational Modifications: Asymmetrically dimethylated on Arg residues by PRMT1. Methylation is required for DNA binding.Phosphorylated at basal level in the absence of DNA damage. Phosphorylated by ATM in response to DNA damage: phosphorylation at different sites promotes interaction with different set of proteins: phosphorylation at the N-terminus by ATM (residues from 6-178) promotes interaction with PAXIP1 and non-homologous end joining (NHEJ) of dysfunctional telomeres. Phosphorylation by ATM at residues that are located more C-terminus (residues 300-650) leads to promote interaction with RIF1. Interaction with RIF1 leads to disrupt interaction with NUDT16L1/TIRR. Phosphorylation at Thr-1609 and Ser-1618 in the UDR motif blocks interaction with H2AK15ub. Dephosphorylated by PPP4C. Hyperphosphorylation during mitosis correlates with its exclusion from chromatin and DNA lesions. Hyperphosphorylated in an ATR-dependent manner in response to DNA damage induced by UV irradiation. Dephosphorylated by PPP5C.
• Subunit Structure: Homoligomer. Interacts with p53/TP53 (via the central domain). Interacts with DCLRE1C. Interacts with histone H2AX and this requires phosphorylation of H2AX on 'Ser-139'. Interacts with histone H4 that has been dimethylated at 'Lys-20' (H4K20me2). Has low affinity for histone H4 containing monomethylated 'Lys-20' (H4K20me1). Does not bind histone H4 containing unmethylated or trimethylated 'Lys-20' (H4K20me3). Has low affinity for histone H3 that has been dimethylated on 'Lys-79'. Has very low affinity for histone H3 that has been monomethylated on 'Lys-79' (in vitro). Does not bind unmethylated histone H3. Interacts with histone H2A monoubiquitinated at 'Lys-15' (H2AK15Ub). Interacts with PWWP3A/EXPAND1. Interacts with CHEK2; modulates CHEK2 phosphorylation at 'Thr-68' in response to infrared. Interacts with MSL1; this interaction may be required for MSL1 DNA repair activity, but not for histone acetyltransferase activity. Interacts (when phosphorylated by ATM) with RIF1. Interacts (via the Tudor-like domain) with NUDT16L1/TIRR; interaction masks the Tudor-like domain and prevents recruitment to chromatin. Interacts with PAXIP1. Interacts with IFI202A (By similarity). Interacts with SHLD2.
• Similarity: The Tudor-like region mediates binding to histone H4 dimethylated at 'Lys-20' (H4K20me2) (PubMed:17190600). Interaction with NUDT16L1/TIRR masks the Tudor-like domain and prevents recruitment to chromatin (PubMed:28241136).The UDR (ubiquitin-dependent recruitment) motif specifically recognizes and binds histone H2A monoubiquitinated at 'Lys-15' (H2AK15ub) (PubMed:23760478, PubMed:24703952). Phosphorylation of the UDR blocks interaction with H2AK15ub (PubMed:24703952).
• Subcellular Location: Nucleus. Chromosome. Chromosome>Centromere>Kinetochore.; Note: Localizes to the nucleus in absence of DNA damage (PubMed:28241136). Following DNA damage, recruited to sites of DNA damage, such as double stand breaks (DSBs): recognizes and binds histone H2A monoubiquitinated at 'Lys-15' (H2AK15Ub) and histone H4 dimethylated at 'Lys-20' (H4K20me2), two histone marks that are present at DSBs sites (PubMed:23333306, PubMed:23760478, PubMed:24703952, PubMed:28241136, PubMed:17190600). Associated with kinetochores during mitosis (By similarity).
• Preparation and Storage: Store at -20 degree C. Stable for 12 months from date of receipt.

Western Blot (WB)

(Western blot analysis of 53BP1 in lysates of HeLa, using 53BP1 Antibody(AF4760).)

Immunofluorescence (IF)/Immunocytochemistry (ICC)

(Staining Hela cells by IF/ICC. The samples were fixed with PFA and permeabilized in 0.1% Triton X-100,then blocked in 10% serum for 45 minutes at 25 degree C. Samples were then incubated with primary Ab(AF4760 1:200) and mouse anti-beta tubulin Ab(T0023 1:200) for 1 hour at 37 degree C. An AlexaFluor594 conjugated goat anti-rabbit IgG(H+L) Ab(Red) and an AlexaFluor488 conjugated goat anti-mouse IgG(H+L) Ab(Green) were used as the secondary antibody.The nuclear counter stain is DAPI(blue).)

Related Product Information for anti-53BP1 antibody

Double-strand break (DSB) repair protein involved in response to DNA damage, telomere dynamics and class-switch recombination (CSR) during antibody genesis. Plays a key role in the repair of double-strand DNA breaks (DSBs) in response to DNA damage by promoting non-homologous end joining (NHEJ)-mediated repair of DSBs and specifically counteracting the function of the homologous recombination (HR) repair protein BRCA1. In response to DSBs, phosphorylation by ATM promotes interaction with RIF1 and dissociation from NUDT16L1/TIRR, leading to recruitment to DSBs sites. Recruited to DSBs sites by recognizing and binding histone H2A monoubiquitinated at 'Lys-15' (H2AK15Ub) and histone H4 dimethylated at 'Lys-20' (H4K20me2), two histone marks that are present at DSBs sites. Required for immunoglobulin class-switch recombination (CSR) during antibody genesis, a process that involves the generation of DNA DSBs. Participates to the repair and the orientation of the broken DNA ends during CSR (By similarity). In contrast, it is not required for classic NHEJ and V (D)J recombination (By similarity). Promotes NHEJ of dysfunctional telomeres via interaction with PAXIP1.

NCBI and Uniprot Product Information

• NCBI GI #: 213972634
• NCBI GeneID: 7158
• NCBI Accession #: NP_001135451.1
• NCBI GenBank Nucleotide #: NM_001141979.1
• UniProt Accession #: Q12888; Q2M1Z7; Q4LE46; Q5FWZ3; Q7Z3U4
• Molecular Weight: 213,574 Da
• NCBI Official Full Name: tumor suppressor p53-binding protein 1 isoform 2
• NCBI Official Synonym Full Names: tumor protein p53 binding protein 1
• NCBI Official Symbol: TP53BP1
• NCBI Official Synonym Symbols: p202; 53BP1
• NCBI Protein Information: tumor suppressor p53-binding protein 1; p53BP1; tumor protein 53-binding protein, 1; tumor protein p53-binding protein, 1
• UniProt Protein Name: Tumor suppressor p53-binding protein 1
• UniProt Gene Name: TP53BP1
• UniProt Synonym Gene Names: 53BP1; p53-binding protein 1; p53BP1
• UniProt Entry Name: TP53B_HUMAN

Uniprot Description

53BP1: a DNA damage checkpoint protein that interacts with HDAC4 protein to mediate the DNA damage response. Inhibits E2F1-mediated apoptosis in prostate cancer cells. Recruited to double strand breaks via the binding of its Tudor domain to dimethylated H3 K20. Asymmetrically dimethylated on Arg residues by PRMT1. Methylation is required for DNA binding. Binds to the central domain of p53. Interacts with Artemis. Interacts with histone H2AFX and this requires phosphorylation of H2AFX on S139. Interacts with histone H4 that has been dimethylated at K20. Has low affinity for histone H4 containing monomethylated K20. Does not bind histone H4 containing unmethylated or trimethylated K20. Has low affinity for histone H3 that has been dimethylated on K79. Does not bind unmethylated histone H3. Phosphorylated at basal level in the absence of DNA damage. Hyper-phosphorylated in an ATM-dependent manner in response to DNA damage induced by ionizing radiation. Hyper-phosphorylated in an ATR-dependent manner in response to DNA damage induced by UV irradiation. Two alternatively spliced human isoforms have been observed.

Protein type: DNA repair, damage; Transcription, coactivator/corepressor

Chromosomal Location of Human Ortholog: 15q15-q21

Cellular Component: nucleoplasm; chromosome, telomeric region; cytoplasm; replication fork; nucleus

Molecular Function: protein binding; p53 binding; telomeric DNA binding; damaged DNA binding; methylated histone residue binding

Biological Process: transcription from RNA polymerase II promoter; positive regulation of transcription, DNA-dependent; double-strand break repair; positive regulation of transcription from RNA polymerase II promoter; positive regulation of transcription factor activity; DNA repair; response to DNA damage stimulus; double-strand break repair via homologous recombination