Molecular mass of actin of skeletal muscle

Value 41785 Da
Organism Rabbit
Reference Elzinga M, Collins JH, Kuehl WM, Adelstein RS. Complete amino-acid sequence of actin of rabbit skeletal muscle. Proc Natl Acad Sci U S A. 1973 Sep70(9):2687-91. abstract, p.2690 left column 3rd paragraph & 4th paragraphPubMed ID4517681
Method "The amino-acid sequences of the peptides were determined by quantitative subtractive Edman degradations done as described (ref 6)."
Comments "The actin polypeptide chain is composed of 374 residues, including one residue of the unusual amino acid N(r)-methyl histidine, and has a calculated molecular weight of 41,785...The molecular weight of 41,785 (or 42,300 including Ca2+ and ATP) is slightly lower than has been estimated from its thermodynamic properties (ref 15)."
Entered by Uri M
ID 111042