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Literature summary for 5.6.1.8 extracted from

  • Kanda, K.; Sobue, K.; Kakiuchi, S.
    Phosphorylation of myosin light chain and the actin-activated ATPase activity of adrenal medullary myosin (1985), J. Biochem., 97, 961-964.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
actin
-
Bos taurus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
16500
-
alpha,beta 1,beta 2, 1 * 20000 + 2 * 16500, at least three species of light chains, SDS-PAGE Bos taurus
20000
-
alpha,beta 1,beta 2, 1 * 20000 + 2 * 16500, at least three species of light chains, SDS-PAGE Bos taurus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ATP + H2O + myosin bound to actin filament at position n Bos taurus
-
ADP + phosphate + myosin bound to actin filament at position n+1
-
?

Organism

Organism UniProt Comment Textmining
Bos taurus
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
adrenal medulla
-
Bos taurus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.001
-
in the absence of actin Bos taurus
0.027
-
actin and light chain kinase activated, phosphorylation of myosin is Ca2+ and Calmodulin-dependent Bos taurus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + H2O + myosin bound to actin filament at position n
-
Bos taurus ADP + phosphate + myosin bound to actin filament at position n+1
-
?

Subunits

Subunits Comment Organism
heteromer alpha,beta 1,beta 2, 1 * 20000 + 2 * 16500, at least three species of light chains, SDS-PAGE Bos taurus