BioMed Research International / 2015 / Article / Tab 1

Review Article

Poorly Understood Aspects of Striated Muscle Contraction

Table 1

Conflicting evidence from experimental studies and theoretical considerations related to temporal relationship between Pi release and force-generating step in actomyosin cross-bridge cycle in muscle.

Force-gen. before Pi releasePi release before force-gen.Loose coupling

Kawai and Halvorson [89]
Pi release fast
Davis and Epstein [230]. L-jumps and T-jumps in skinned muscle fibersCaremani et al. [122]. Load-clamp expts. in skinned muscle fibers at varied [Pi]

Dantzig et al. [233] based on Pi jump experiments in skinned muscle fibers
Pi release fast
Davis and Rodgers [229]

Tesi et al. [235] Pi-jumps and tension versus [Pi] in myofibrils
Pi release fast
Spudich [16]

Smith and Sleep [324] based on comparison of kinetic models
Pi release slow
Sweeney and Houdusse [60] from reviewing structural data from several studies

Ranatunga [209] from reviewing own work and work by others
Pi release fast
Conibear et al. [359]

Caremani et al. [236]. Contraction of skinned fibres at different [Pi]
Pi release fast

Muretta et al. [323]. Spectroscopy applied to Dictyostelium myosin II
Pi release slow

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