Ataxia telangiectasia mutated homolog ATM_ARATH At3g48190 Serine/threonine-protein kinase ATM T24C20.70 MKLQNPDKKTLREGFSQESSVVALDSGVLAMSGLKCDGKFPVKDVLMEEGGDKVRKIQVSGGNISLVVDFSGARTSSNNFFESNASCVNENLVKGNGYREDETQEFLVGNLVWVMTKYKKWWPGEVVDFKADAKESFMVRSIGQSHLVSWFASSKLKPFKESFEQVLNQRNDNGFFDALQKAMSLLSNSLKLDMTCSCIADGNGIVSAQNITTRKNKPLILREFSVDRLEPKEFVTQLKNIAKCVLNAGVLESTVMQSQLSAFYTLFGHKQIPMAQLHENEGRKSFTAKMSDSKFIGSPSICAGNSRKRFRKEWFRKFVSEVDNVSARDDLVNVPPSDLISKLKLLAVGYNCSEETENIGLFEWFFSKFRISVYHDENAYKMQLANMAGFKDLMLATNANRGTVQKTLKSKKIGKSKMEPLNGVSVADTEQKTFELQISKKSNIESLNGVSVADTEQKTFELQILEKSNIESLNGVSTPNIDHEASKSNNSGKTKINHIIGHSNFPSSVAKVQLAKDFQDKLLVQAPDRKAMTADTLSRPAAILVPDLNSGGNALGTAEFDHMQRPETLIQHNVCPQEEKTPRSTILNFQVTAHQGVSGTQFVSSQPTSYKHFTSADLFTYSGKKKRGRKRKNAEELPIVAHASATTGIPDLNGTNTEPTLVLPQVEPTQRRRRRKKEESPNGLTRGITILFLKFSSQVSMPSRDDLTSTFSAFGPLDSSETHVSEEFSGAQVAFVSSADAIEAVKSLEKANPFGETLVNFRLQQKLITVQRNIAPRMPVISHVSPVPKPNNIPTSMDAMRQNLLMMTAMLEKSGDSLSRETKAKLKSEITGLLEKDGVKLLNTWLEGERSITFCRFLSQNTAKLKLDEIPNAETWPFLVKLLLQCVSMEVSGSKRRMPKPTFAKTLRVVVQRTEETKFPGVQFPLLSMAKTLFTHVHDILSNTPSFQSEYGTILRHLLEIKEYRFQMRKRTYSSLVLLYMERAETGFCEKNSGQHSQKEEAFRYILTLQSLLENSPGDFPDDLREEIVNGLIHIFSSVRDEGKLSRKLIECVNTFLLKDGPNLGSLSLEIHNAVEQFVFRCWLTTHDKNLKEILVSYGRLQLNLTRDSSESSSLVEQLLDVVTRELDLGSSSSSASWGDTTKDEKLGALSSYQNSLVELAAHVFYRACVNTSRPSLSEKRARRQHIAMRMVDALTEGKWLWCAAFGCLVRNYCARINMDLLIYWFEAICTNFQRLLEDASMRRSYDGLLWTLRSLQGLSSGLSLPDITMDISKSSASSSELDRGWQSIWSSLIHGLATFSSMSVIVDAVLVLLGSIISSNHITVKILPQEVWDHQLFRHIPSEPALYFIACYFSRMGCQGNLQDDLHLRRNLLRAVCAPLSWKVRLTLDERMVQLLPAAAFSLCAGFKVSLPLPKEHLPTPSQWDVCEQIDDVDRERNFGLFECSVEALTRICSNSSKISGCQVPDVVQLPLVLRDPLLHDMDIYFLSIIPEVKEKGPLSDIFMGCALLCHFMHGSYITRKGKGSSSFFLKACQYLLEGLDHAVESVSKSLNDLQRRGSLGFGSDFNEKGSIIVSLRSFTQSPVFSNRRDQNLLGASYDFVIHSLENLLRSFAKVYEEYTEHAWNTHSDTVPSKSLAPDSPEVGRIVDMDLDLAEDTKERDIIAAGGKAVPGLPVSMGNWKLGMVSLISCFSPVLQFPTWDVLYNLLEKESDPKVLENILYHLCKLSCLTSIPKVDDLVIFLDGMLSTQVKMKRNCLNIVTALHVLLHTLSSSRRDSSGVEKNCGLSLKEAESFQVFVQLGAMVNKVSEFGLLGWFGRVKLINCICDLVLLNPQTGQTMIERLLLMLSDSDYRVRFVLARQIGILFQTWDGHEALFQDICSSFGIKLVTSSKEKLVTAKDVLAVGPQPRQKMETVIITLMHLAYHSENIELQAVFMMCAVSAKDPCQRELIIAALDNLSAQLHYPSRFKYLEELLGPILFHWIASGVSLAGLIETSQLFIPNAEPKYFIHFCSHWLLPALLLHEDHTNLDWVAKMAGQPVVVLVKENFVPIFSICMGLHCSKTSECDKGAMVLQNSILYVGETSENERDKLIKQNMVSIVSFILSCASSSPEPPVPTFSRDTISLAVQTVVDGFLENTDYPKNAAITDRINIFRPDRVFMFITEMHYRMSAACHHRHTRHHLAALEELTILLGHRALVPSSLNYIFNLVGQFIGYPSLQDQCCSIASCLLDLFKSNPAKEIVSVLGDQLQFLVSKLVTCCIDAEADTKISGAKSSQLVNLLHKLVVSSDSSLNEDIRDLEPLPDLKYFQVIRESHIRICEAYSPRNHLLKVEHSTFLIYIFLEILSLSNFLFLSCSTIQQCSRRSNYLPPRFLSRSLQALHNKLIASEVSQEDTNGETAETFWQSDDEIVNAVWTLVRVSASDEADSMRLLVSDFLSRIGIRDPHTVVFHLPGNLVSMHGLQGFGHNTGSKVRSLTENGISDETLITLLNFLKKYLLDDSVKIIDVTSQTLRGILSTERGQQALSSFDSCERALIEVHGRGVNLDIVEKILLDSQKQFKAEKFSLETPEVWSTDNKNFDRWICQLVYCMIALCEDVPIRLCQNIALLKAEISELLFPSVVVSLAGRIGMDINLHDLITSQVKEHIFTDSNKLTKSKQVMLNTLNELRMCYVLERSIFSGQTKREKNSRSCSTAAKIRDVESGSNGMAASITTNWEKVYWLSIDYLVVAGSAVVCGAYLTASMYVEYWCEEKFGNLSLGDPDFSYHDKLPDHVEILVSAITRINEPDSLYGVIHSNKLSAQIITFEHEGNWTRALEYYDLQARSQKMVVPSSLSENLEVEQFQPTTSARHSVFGEGEVQRQPFKGLIRSLQQTGCMHVLDLYCRGLTSREGCFQYDPEFIELQYEAAWRAGKWDFSLLYPQTHCQPLQHAKNNNYHESLHCCLRALQEGDYDGFYGKLKDTKKELVLSISRASEESTEFIYSTVVKLQILHHLGLVWDLRWTTSSHQSVHGYLVKQMACVDPVIPTMDQLSWLNKDWNSIITQTQLHMTLLEPFIAFRRVLLQILGCEKCTMQHLLQSASLLRKGTRFSHAAASLHEFKFLCARSNGQQPVPDWLGKLEEAKLLHAQGRHEVSISLANYILHNYQLKEEASDIYRVIGKWLAETRSSNSRTILEKYLRPAVSLAEEQSSKICKRLVDRQSQTWFHLAHYADALFKSYEERLSSSEWQAALRLRKHKTKELEVFIKRFKSSKKAEQSDYSLKIQDLQKQLTMDKEEAEKLQVDRDNFLKLALEGYKRCLEIGDKYDVRVVFRQVSMWFSLASQKNVIDNMLSTIKEVQSYKFIPLVYQIASRLGSSKDESGSNSFQSALVSLIRKMAIDHPYHTILQLLALANGDRIKDNQRSRNSFVVDMDKKLAAEHLLQDVSHYHGPMIRQMKQLVDIYIKLAELETRREDTNRKVALPREIRSVKQLELVPVVTATIPVDRSCQYNEGSFPFFRGLSDSVTVMNGINAPKVVECFGSDGQKYKQLAKSGNDDLRQDAVMEQFFGLVNTFLHNNRDTWKRRLAVRTYKVIPFTPSAGVLEWVDGTIPLGDYLIGSSRSEGAHGRYGIGNWKYPKCREHMSSAKDKRKAFVDVCTNFRPVMHYFFLEKFLQPADWFVKRLAYTRSVAASSMVGYIVGLGDRHAMNILIDQATAEVVHIDLGVAFEQGLMLKTPERVPFRLTRDIIDGMGITGVEGVFRRCCEETLSVMRTNKEALLTIVEVFIHDPLYKWALSPLKALQRQKETEDYDGMNLEGLQEEFEGNKDATRALMRVKQKLDGYEGGEMRSIHGQAQQLIQDAIDTDRLSHMFPGWGAWM 3856 Serine/threonine protein kinase which activates checkpoint signaling upon genotoxic stresses such as ionizing radiation (IR) or DNA replication stalling. Plays a central role in the perception and response to both stress-induced damage in somatic cells and developmentally programmed DNA damage during meiosis. Recognizes the substrate consensus sequence [ST]-Q. Phosphorylates histone variant H2AX to form H2AXS139ph at double strand breaks (DSBs), thereby regulating DNA damage response mechanism. Involved in transcriptional regulation of RAD51, PARP1, GR1, and LIG4 in response to DNA double strand breaks. Plays a dual role by activating the DNA damage response at dysfunctional telomeres and yet preventing this activation at functional telomeres. Not required for telomere length homeostasis. ATM