Chaponnier C, Borgia R, Rungger-Brändle E, Weil R, Gabbiani G
Experientia. 1979 Aug 15;35(8):1039-41. doi: 10.1007/BF01949928.
Plasma and serum of humans or experimental animals contain a factor which destabilizes F-actin. The factor has no DNAse or thrombin activity and after incubation with F-actin does not modify the position of the actin band on a SDS polyacrylamide gel. Hence it probably depolymerizes F-actin.