出典:Wiktionary
出典:『Wiktionary』 (2017/03/25 18:29 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/15 08:49 UTC 版)
Actinin is a microfilament protein. α-Actinin is necessary for the attachment of actin filaments to the Z-lines in skeletal muscle cells, and to the dense bodies in smooth muscle cells. The functional protein is an anti-parallel dimer, which cross-links the thin filaments in adjacent sarcomeres, and therefore coordinated contractions between sarcomeres in the horizontal axis.