Anti-53BP1 antibody (AA22175)


Alternative names Tumor suppressor p53-binding protein 1, 53BP1, p53-binding protein 1, p53BP1, TP53BP1, TP53B_HUMAN, Q12888, 7158
Source 1972
Species Reactivity Human, Mouse, Rat
Applications IF/ICC, IHC, WB
Host Rabbit
Class Polyclonal
Conjugated Unconjugated


Product name Anti-53BP1 antibody (AA22175)
Catalog number AA22175
Brand family Ango
Product type Primary Antibody
Antibody Alternative Names Tumor suppressor p53-binding protein 1 antibody, 53BP1 antibody, p53-binding protein 1 antibody, p53BP1 antibody, TP53BP1 antibody, TP53B_HUMAN antibody

Biological Information

Immunogen Synthetic peptide of human TP53BP1
Concentration 1 mg/ml
Isotype IgG
Application Notes WB 1:500 - 1:2000 IHC 1:50 - 1:100 IF 1:20 - 1:50
Purification method Purified by affinity chromatography


Target Name 53BP1
SwissProt ID Link Q12888
Function Plays a key role in the response to DNA damage. May have a role in checkpoint signaling during mitosis. Enhances TP53-mediated transcriptional activation.
Subcellular Location Nucleus. Chromosome, centromere, kinetochore. Associated with kinetochores. Both nuclear and cytoplasmic in some cells. Recruited to sites of DNA damage, such as double stand breaks. H4K20me2 is required for efficient localization to double strand breaks and removal of proteins that have a high affinity for H4K20me2 such as L3MBTL1 and KDM4A is needed.
Involvement in Disease A chromosomal aberration involving TP53BP1 is found in a form of myeloproliferative disorder chronic with eosinophilia. Translocation t(5;15)(q33;q22) with PDGFRB creating a TP53BP1-PDGFRB fusion protein.
Post-Translational Modification Asymmetrically dimethylated on Arg residues by PRMT1. Methylation is required for DNA binding. 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. Dephosphorylated by PPP5C.
Subunit Structure Interacts with IFI202A. Binds to the central domain of p53/TP53. May form homooligomers. Interacts with DCLRE1C. Interacts with histone H2AFX and this requires phosphorylation of H2AFX 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 MUM1/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.
Sequence Similarities Contains 2 BRCT domains.

Poduct Presentation

Form Liquid
Preservative 0.02% (w/v) sodium azide
Storage buffer PBS with 50% glycerol, pH 7.3

Storage and Shipping Information

Storage Store at -20 or -80 C. Avoid multiple freeze/thaw cycles.