Evidence that nebulin is a protein-ruler in muscle thin filaments.

TitleEvidence that nebulin is a protein-ruler in muscle thin filaments.
Publication TypeJournal Article
Year of Publication1991
AuthorsLabeit, S, Gibson, T, Lakey, A, Leonard, K, Zeviani, M, Knight, P, Wardale, J, Trinick, J
JournalFEBS Lett
Date Published1991 May 06
KeywordsActin Cytoskeleton, Amino Acid Sequence, Animals, Cattle, Chickens, DNA, Humans, Molecular Sequence Data, Muscle Proteins, Rabbits

Partial amino acid sequence was obtained from the massive myofibrillar protein nebulin. This consists of repeating motifs of about 35 residues and super-repeats of 7 x 35 = 245 residues. The repeat-motifs are likely to be largely alpha-helical and to interact with both actin and tropomyosin in thin filaments. Nebulin from different species was found to vary in size in proportion to filament length. The data are consistent with the proposal that nebulin acts as a protein-ruler to regulate precise thin filament assembly.

Alternate JournalFEBS Lett.
Citation Key10.1016/0014-5793(91)80503-u
PubMed ID2037050