Abstract
When actin molecules form “rigor complexes” with nucleotide-free myosin, tropomn binds calcium with greater affinity and in a cooperative response the remaining actin molecules not cornplexed with myosin are “turned on” even though calcium is absent.
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BREMEL, R., WEBER, A. Cooperation within Actin Filament in Vertebrate Skeletal Muscle. Nature New Biology 238, 97–101 (1972). https://doi.org/10.1038/newbio238097a0
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DOI: https://doi.org/10.1038/newbio238097a0
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