Structural evidence for a possible role of reversible disulphide bridge formation in the elasticity of the muscle protein titin.
Mayans, O., Wuerges, J., Canela, S., Gautel, M., Wilmanns, M.(2001) Structure 9: 331-340
- PubMed: 11525170 
- DOI: https://doi.org/10.1016/s0969-2126(01)00591-3
- Primary Citation of Related Structures:  
1G1C - PubMed Abstract: 
The giant muscle protein titin contributes to the filament system in skeletal and cardiac muscle cells by connecting the Z disk and the central M line of the sarcomere. One of the physiological functions of titin is to act as a passive spring in the sarcomere, which is achieved by the elastic properties of its central I band region. Titin contains about 300 domains of which more than half are folded as immunoglobulin-like (Ig) domains. Ig domain segments of the I band of titin have been extensively used as templates to investigate the molecular basis of protein elasticity.
Organizational Affiliation: 
EMBL Hamburg Outstation, Germany.