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NRAP
Nebulin-related-anchoring protein (N-RAP) is a protein that in humans is encoded by the ''NRAP'' gene. N-RAP is a muscle-specific isoform belonging to the nebulin family of proteins. This family is composed of 5 members: N-RAP, nebulin, nebulette, LASP-1 and LASP-2. N-RAP is involved in both myofibrillar myogenesis during development and cell-cell connections in mature muscle.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=4892 )〕 == Structure == N-RAP is a 197 kDa protein composed of 1730 amino acids.〔(【引用サイトリンク】 work = Cardiac Organellar Protein Atlas Knowledgebase (COPaKB) )〕 As a member of the nebulin family of proteins, N-RAP is characterized by 35 amino acid stretches of ‘‘nebulin repeats’’, which are actin binding domains containing a conserved SDxxYK motif. Like nebulin, groups of seven single repeats within N-RAP form “super repeats”, which incorporate a single conserved motif WLKGIGW at the end of the third repeat. A unique feature of NRAP relative to nebulin is its N-terminal cysteine-rich LIM domain, a feature shared with LASP-1 and LASP-2.〔
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