Polyclonal antibody to Phospho-ATM-S1981
ATM antibody; AT1 antibody; ATA antibody; ATC antibody; ATD antibody; ATDC antibody; ATE antibody; TEL1 antibody; TELO1 antibody; serine-protein kinase ATM antibody
Antigen: A phospho specific peptide corresponding to residues surrounding S1981 of human ATM
PBS with 0.02% sodium azide, 50% glycerol, pH7.3.
Store at -20℃. Avoid freeze / thaw cycles.
WB 1:500 - 1:2000
IHC 1:50 - 1:100
Western blot - Phospho-ATM-S1981 pAb
Western blot analysis of extracts from HeLa cells using phospho-ATM-S1981 antibody .Secondary antibody: HRP Goat Anti-Rabbit IgG (H+L) at 1:10000 dilution.Lysates/proteins: 25ug per lane.Blocking buffer: 3% BSA.
Immunohistochemistry - Phospho-ATM-S1981 pAb
Immunohistochemistry of paraffin-embedded human breast carcinoma using Phospho-ATM-S1981 antibody .
Serine/threonine protein kinase which activates checkpoint signaling upon double strand breaks (DSBs), apoptosis and genotoxic stresses such as ionizing ultraviolet A light (UVA), thereby acting as a DNA damage sensor. Recognizes the substrate consensus sequence [ST]-Q. Phosphorylates 'Ser-139' of histone variant H2AX/H2AFX at double strand breaks (DSBs), thereby regulating DNA damage response mechanism. Also plays a role in pre-B cell allelic exclusion, a process leading to expression of a single immunoglobulin heavy chain allele to enforce clonality and monospecific recognition by the B-cell antigen receptor (BCR) expressed on individual B-lymphocytes. After the introduction of DNA breaks by the RAG complex on one immunoglobulin allele, acts by mediating a repositioning of the second allele to pericentromeric heterochromatin, preventing accessibility to the RAG complex and recombination of the second allele. Also involved in signal transduction and cell cycle control. May function as a tumor suppressor. Necessary for activation of ABL1 and SAPK. Phosphorylates DYRK2, CHEK2, p53/TP53, FANCD2, NFKBIA, BRCA1, CTIP, nibrin (NBN), TERF1, RAD9 and DCLRE1C. May play a role in vesicle and/or protein transport. Could play a role in T-cell development, gonad and neurological function. Plays a role in replication-dependent histone mRNA degradation. Binds DNA ends. Phosphorylation of DYRK2 in nucleus in response to genotoxic stress prevents its MDM2-mediated ubiquitination and subsequent proteasome degradation. Phosphorylates ATF2 which stimulates its function in DNA damage response.
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