Direct binding of Torpedo syntrophin to dystrophin and the 87 kDa dystrophin homologue

FEBS Letters

Dwyer, Timothy M.¹  Froehner, Stanley C.¹ 

[1] Department of Physiology, University of North Carolina, Chapel Hill, NC 27599-7545, USA

关键词: Syntrophin;    Dystrophin;    Binding site;    Torpedo;   

DOI  :  10.1016/0014-5793(95)01176-F

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Syntrophin, a 58-kDa membrane-associated protein, is one component of a protein complex associated with dystrophin and other members of the dystrophin family, including the 87-kDa homologue (87K protein). To characterize interactions between syntrophin and 87K protein, we used an in vitro overlay binding assay. We demonstrate that purified Torpedo syntrophin binds directly to dystrophin and 87K. By expressing overlapping regions of the 87K protein as bacterial fusion proteins for binding targets, we show that a 52-amino acid region of 87K (residues 375–426) is sufficient for binding syntrophin.

【 授权许可】

Unknown