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Biochem Biophys Res Commun. 1996 Jun 5;223(1):160-4.

A 11.5-kb 5'-terminal cDNA sequence of chicken breast muscle connectin/titin reveals its Z line binding region.

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Department of Biology, Faculty of Science, Chiba University, Japan.


A partial 5'-region cDNA (11.5 kb) of chicken breast muscle connectin/titin encoding 3752 amino acids was sequenced. The predicted amino acid sequence contains 31 immunoglobulin C2 motifs and 10 interdomains. The sequence suggests a skeletal muscle type of connectin isoforms. Immunoelectron microscopic studies using antisera raised against several products of the cDNA fragments expressed in E. coli revealed that a region of some 800 amino acids from the N terminus of connectin is involved in its binding to the Z line in a sarcomere.

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