Structure and function of the essential light chain of myosin

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Abstract

The review summarizes the recent data on the structure and function of the essential light chain of myosin. It is known that the essential light chain of myosin stabilizes the lever arm. Consistent with the model of the shift of the dynamic population of conformations, the conformational flexibility of the essential light chain is emphasized, which opens the way to determining its new functions. It is proposed that the interaction between the C-terminal domain of the essential light chain and the N-terminal subdomain of the heavy chain of myosin may be involved in the coupling of ATP hydrolysis and rotation of the lever arm. The recent data indicate that the isoforms of the essential light chain with the additional N-terminal peptide are capable of interacting with actin and src-homologous domain 3 of myosin. The structural aspects of these interactions and the modulatory role of the isoforms of the essential light chain of myosin are discussed.

Original languageEnglish
Pages (from-to)505-509
Number of pages5
JournalBiophysics
Volume53
Issue number6
DOIs
Publication statusPublished - 1 Dec 2008

Keywords

  • Muscle contraction
  • Myosin
  • The essential light chain

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