____ _ _ _ _
| _ \ ___ | |_ (_) _ __ ___ __| | (_) __ _
| |_) | / _ \ | __| | | | '_ \ / _ \ / _| | | | / _ |
| _ < | __/ | |_ | | | |_) | | __/ | (_| | | | | (_| |
|_| \_\ \___| \__| |_| | .__/ \___| \__,_| |_| \__,_|
|_|
- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b- `b
Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―Β―
ATM-Kinase
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
top
Die Serin-Proteinkinase ATM ist ein Enzym im Zellkern von Tier- und Pilzzellen. Es fungiert als Sensor von DNA-SchΓ€den, vor allem von DoppelstrangbrΓΌchen. Bei SchΓ€den durch UV-Strahlung kann ATM indirekt ΓΌber ATR (Ataxia telangiectasia and Rad3-related protein) aktiviert werden.
ATM bringt Signalkaskaden zur Produktion von DNA-Reparaturproteinen in Gang. Bei starken SchΓ€den kann es den Zellzyklus stoppen und den Zelltod veranlassen. Beim Menschen wird ATM in vielen Gewebetypen exprimiert und hat weitere Funktionen beim Allel-Ausschluss der B-Zellreifung und mΓΆglicherweise beim Vesikeltransport. Mutationen im ATM-Gen sind verantwortlich fΓΌr das Louis-Bar-Syndrom und tragen bei zum Risiko fΓΌr verschiedene Typen von LeukΓ€mie, Brustkrebs und Lungenkrebs.cite-ref-2[2]cite-ref-3[3]cite-ref-4[4]cite-ref-5[5]cite-ref-6[6]
Die Bezeichnung ATM ist die AbkΓΌrzung von Ataxia Telangiectasia Mutated.
Contents
β’ Literatur
β’ Weblinks
β’ Einzelnachweise
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Literatur
β’ A. TichΓ½, J. VΓ‘vrovΓ‘, J. Pejchal, M. RezΓ‘covΓ‘: Ataxia-telangiectasia mutated kinase (ATM) as a central regulator of radiation-induced DNA damage response. In: Acta Medica (Hradec KrΓ‘lovΓ©). Band 53, Nr. 1, 2010, S. 13β17, PMID 20608227.
β’ K. Czornak, S. Chughtai, K. H. Chrzanowska: Mystery of DNA repair: the role of the MRN complex and ATM kinase in DNA damage repair. In: J. Appl. Genet. Band 49, Nr. 4, 2008, S. 383β396, PMID 19029686 (poznan.pl).
Weblinks
β’ I. Hoffmann, K. Khanna, M. O'Connell, N. Walworth, T. J. Yen: Cell Cycle Checkpoints. In: reactome.org. EBI, 1. Januar 2005, abgerufen am 16. Oktober 2010.
Einzelnachweise
cite-note-11. Orthologe bei eggNOG@1@2Vorlage:Toter Link/eggnog.embl.de (Seite dauerhaft nicht mehr abrufbar, festgestellt im Juni 2024. Suche in Webarchiven)
cite-note-33. β S. J. Mandriota, R. Buser, L. Lesne u. a.: Ataxia telangiectasia mutated (ATM) inhibition transforms human mammary gland epithelial cells. In: Journal of Biological Chemistry. Band 285, Nr. 17, April 2010, S. 13092β13106, doi:10.1074/jbc.M109.078360, PMID 20177072.
cite-note-44. β Y. L. Lo, C. F. Hsiao, Y. S. Jou u. a.: ATM polymorphisms and risk of lung cancer among never smokers. In: Lung Cancer. Band 69, Nr. 2, August 2010, S. 148β154, doi:10.1016/j.lungcan.2009.11.007, PMID 20004998.
cite-note-55. β J. N. Sarkaria, R. S. Tibbetts, E. C. Busby, A. P. Kennedy, D. E. Hill, R. T. Abraham: Inhibition of phosphoinositide 3-kinase related kinases by the radiosensitizing agent wortmannin. In: Cancer Res. Band 58, Nr. 19, Oktober 1998, S. 4375β4382, PMID 9766667.
cite-note-66. β T. Stiff, S. A. Walker, K. Cerosaletti u. a.: ATR-dependent phosphorylation and activation of ATM in response to UV treatment or replication fork stalling. In: EMBO J. Band 25, Nr. 24, Dezember 2006, S. 5775β5782, doi:10.1038/sj.emboj.7601446, PMID 17124492, PMC 1698893 (freier Volltext).
cite-note-77. β A. Blasina, B. D. Price, G. A. Turenne, C. H. McGowan: Caffeine inhibits the checkpoint kinase ATM. In: Curr. Biol. Band 9, Nr. 19, Oktober 1999, S. 1135β1138, PMID 10531013.