Phospho-ATR (T1989) Antibody (YA6717)

Phospho-ATR (T1989) Antibody (YA6717) is a Rabbit-derived and non-conjugated IgG monoclonal antibody, targeting to Phospho-ATR (T1989).

Predicted band size: 301 kDa

Q13535

545 [NCBI]

Shipping with blue ice.

Function：Serine/threonine protein kinase which activates checkpoint signaling upon genotoxic stresses such as ionizing radiation (IR), ultraviolet light (UV), or DNA replication stalling, thereby acting as a DNA damage sensor (PubMed:10597277, PubMed:10608806, PubMed:10859164, PubMed:11721054, PubMed:12791985, PubMed:12814551, PubMed:14657349, PubMed:14729973, PubMed:14742437, PubMed:15210935, PubMed:15496423, PubMed:16260606, PubMed:21144835, PubMed:21777809, PubMed:23273981, PubMed:25083873, PubMed:27723717, PubMed:27723720, PubMed:30139873, PubMed:33848395, PubMed:37788673, PubMed:37832547, PubMed:9427750, PubMed:9636169). Recognizes the substrate consensus sequence [ST]-Q (PubMed:10597277, PubMed:10608806, PubMed:10859164, PubMed:11721054, PubMed:12791985, PubMed:12814551, PubMed:14657349, PubMed:14729973, PubMed:14742437, PubMed:15210935, PubMed:15496423, PubMed:16260606, PubMed:21144835, PubMed:23273981, PubMed:27723717, PubMed:27723720, PubMed:33848395, PubMed:9427750, PubMed:9636169). Phosphorylates BRCA1, CHEK1, MCM2, RAD17, RBBP8, RPA2, SMC1 and p53/TP53, which collectively inhibit DNA replication and mitosis and promote DNA repair, recombination and apoptosis (PubMed:11114888, PubMed:11418864, PubMed:11865061, PubMed:21777809, PubMed:23273981, PubMed:25083873, PubMed:9925639). Phosphorylates 'Ser-139' of histone variant H2AX at sites of DNA damage, thereby regulating DNA damage response mechanism (PubMed:11673449). Required for FANCD2 ubiquitination (PubMed:15314022). Critical for maintenance of fragile site stability and efficient regulation of centrosome duplication (PubMed:12526805). Acts as a regulator of the S-G2 transition by restricting the activity of CDK1 during S-phase to prevent premature entry into G2 (PubMed:30139873). Acts as a regulator of the nuclear envelope integrity in response to DNA damage and stress (PubMed:25083873, PubMed:37788673, PubMed:37832547). Acts as a mechanical stress sensor at the nuclear envelope: relocalizes to the nuclear envelope in response to mechanical stress and mediates a checkpoint via phosphorylation of CHEK1 (PubMed:25083873). Also promotes nuclear envelope rupture in response to DNA damage by mediating phosphorylation of LMNA at 'Ser-282', leading to lamin disassembly (PubMed:37832547). Involved in the inflammatory response to genome instability and double-stranded DNA breaks: acts by localizing to micronuclei arising from genome instability and catalyzing phosphorylation of LMNA at 'Ser-395', priming LMNA for subsequent phosphorylation by CDK1 and micronuclei envelope rupture (PubMed:37788673). The rupture of micronuclear envelope triggers the cGAS-STING pathway thereby activating the type I interferon response and innate immunity (PubMed:37788673). Positively regulates the restart of stalled replication forks following activation by the KHDC3L-OOEP scaffold complex (By similarity)

Subcellular Localization：Nucleus,Chromosome,Nucleus envelope

Expression：
Tissue_Specificity: Ubiquitous, with highest expression in testis|Isoform 2 is found in pancreas, placenta and liver but not in heart, testis and ovary

Isoforms & Post-Translational Modification：Q13535 has three isomers: Q13535-1: 301367 Da (predicted); Q13535-2: 294219 Da (predicted); Q13535-3: 297479 Da (predicted).
Phosphorylated (PubMed:21144835)

Subunit：Forms a heterodimer with ATRIP, forming the ATR-ATRIP complex (PubMed:11721054, PubMed:12791985, PubMed:14729973, PubMed:15758953, PubMed:21777809)

AB_3719251

Ataxia telangiectasia and Rad3 related antibody; Ataxia telangiectasia and Rad3-related protein antibody; ATR antibody; ATR_HUMAN antibody; FCTCS antibody; FRAP Related Protein 1 antibody; FRAP-related protein 1 antibody; FRP1 antibody; MEC1 antibody; MEC1 mitosis entry checkpoint 1 homolog antibody; Ataxia telangiectasia and Rad3 related antibody; Ataxia telangiectasia and Rad3-related protein antibody; ATR antibody; ATR_HUMAN antibody; FCTCS antibody; FRAP Related Protein 1 antibody; FRAP-related protein 1 antibody; FRP1 antibody; MEC1 antibody; MEC1 mitosis entry checkpoint 1 homolog antibody; Protein kinase ATR antibody; RAC3 antibody; Rad3 related protein antibody; SCKL antibody; SCKL1 antibody; Serine/threonine protein kinase ATR antibody; Serine/threonine-protein kinase ATR antibody;