與質膜相關的蛋白DyfFLIN的突變可導致影響近端和遠端肌肉的肌肉無力。由該基因編碼的蛋白質是一種II型膜蛋白，其結構類似于dysferlin。它是ferlin家族的一員，與質膜和核膜都有聯系。該蛋白含有C2結構域，在鈣介導的膜融合事件中發揮作用，提示其可能參與膜再生和修復已經發現了兩個編碼不同亞型的轉錄變體。已檢測到其他可能的變體，但尚未確定其全長性質。[由RefSeq提供，2008年12月]
Mutations in dysferlin, a protein associated with the plasma membrane, can cause muscle weakness that affects both proximal and distal muscles. The protein encoded by this gene is a type II membrane protein that is structurally similar to dysferlin. It is a member of the ferlin family and associates with both plasma and nuclear membranes. The protein contains C2 domains that play a role in calcium-mediated membrane fusion events, suggesting that it may be involved in membrane regeneration and repair. Two transcript variants encoding different isoforms have been found for this gene. Other possible variants have been detected, but their full-length nature has not been determined. [provided by RefSeq, Dec 2008]