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Telethonin
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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Telethonin, auch Titin cap protein, ist ein ΓΌberwiegend in Muskel- und Herzmuskelzellen von Eukaryoten vorkommendes Protein. Beim Menschen wird es kodiert vom TCAP-Gen und ist auf dem langen Arm von Chromosom 17 (17q12) lokalisiert.
Contents
β’ Funktion
β’ Literatur
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Funktion
Telethonin ist ein Strukturprotein der Z-Scheibe der Sarkomere von Muskelzellen. Es besitzt jeweils zwei Bindestellen fΓΌr Titin, ein Protein, das zwischen beiden Z-Scheiben verankert wird. DarΓΌber hinaus interagiert es mit Myozenin-1, Myozenin-2, Myozenin-3, Cysteine and glycine-rich protein 3 und Ankyrin repeat domain-containing protein 2.
Medizinische Bedeutung
Mutationen im TCAP-Gen konnten bei der GliedergΓΌrteldystrophie 2G (LGMD2G), der familiΓ€ren hypertrophen Kardiomyopathie und einer Form der dilatativen Kardiomyopathie (CMD1N) nachgewiesen werden.
Literatur
β’ P. Zou, N. Pinotsis u. a.: Palindromic assembly of the giant muscle protein titin in the sarcomeric Z-disk. In: Nature. Band 439, Nummer 7073, Januar 2006, S. 229β233, doi:10.1038/nature04343. PMID 16407954.
β’ G. Valle, G. Faulkner u. a.: Telethonin, a novel sarcomeric protein of heart and skeletal muscle. In: FEBS letters. Band 415, Nummer 2, September 1997, S. 163β168, PMID 9350988.