菜单 基因医生

这一基因编码了一个巨大的蛋白骨架，它与骨骼肌肉瘤中的细丝共存。在大多数脊椎动物中，星云蛋白占肌原纤维总蛋白的3-4%。编码的蛋白质含有约30个氨基酸长模块，可分为7种类型和其他重复模块。蛋白质异构体的大小在600-800kd之间变化，这是由于具有组织、物种和发育阶段特异性的选择性剪接在nebulin基因的183个外显子中，至少有43个是交替拼接的，尽管143和144个外显子在同一个转录本中没有找到在星云预测的几千个转录变体中，refseq项目决定创建三个具有代表性的refseq记录。该基因突变与隐性向列型肌病有关。[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]