這一基因編碼了一個巨大的蛋白骨架，它與骨骼肌肉瘤中的細絲共存。在大多數脊椎動物中，星云蛋白占肌原纖維總蛋白的3-4%。編碼的蛋白質含有約30個氨基酸長模塊，可分為7種類型和其他重復模塊。蛋白質異構體的大小在600-800kd之間變化，這是由于具有組織、物種和發育階段特異性的選擇性剪接在nebulin基因的183個外顯子中，至少有43個是交替拼接的，盡管143和144個外顯子在同一個轉錄本中沒有找到在星云預測的幾千個轉錄變體中，refseq項目決定創建三個具有代表性的refseq記錄。該基因突變與隱性向列型肌病有關。[由RefSeq提供，2009年9月]
This gene encodes nebulin, a giant protein component of the cytoskeletal matrix that coexists with the thick and thin filaments within the sarcomeres of skeletal muscle. In most vertebrates, nebulin accounts for 3 to 4% of the total myofibrillar protein. The encoded protein contains approximately 30-amino acid long modules that can be classified into 7 types and other repeated modules. Protein isoform sizes vary from 600 to 800 kD due to alternative splicing that is tissue-, species-,and developmental stage-specific. Of the 183 exons in the nebulin gene, at least 43 are alternatively spliced, although exons 143 and 144 are not found in the same transcript. Of the several thousand transcript variants predicted for nebulin, the RefSeq Project has decided to create three representative RefSeq records. Mutations in this gene are associated with recessive nemaline myopathy. [provided by RefSeq, Sep 2009]