pfam09470: Telethonin (This model is not part of the current CDD release)
Telethonin protein
Telethonin is a 167-residue protein which complexes with the large muscle protein, titin. The very N-terminus of titin, composed of two immunoglobulin-like (Ig) domains, referred to as Z1 and Z2, interacts with the N-terminal region (residues 1-53) of telethonin, mediating the antiparallel assembly of two Z1Z2 domains. The C-terminus of the telethonin appears to induce dimerization of this 2:1 titin/telethonin structure which thus forms a complex necessary for myofibril assembly and maintenance of the intact Z-disk of skeletal and cardiac muscles.
Jiyao W et al.(2023). "The conserved domain database in 2023.",