addition of the actin-binding protein ( abp ) to semiviscous solutions of purified actin containing troponin-tropomyosin ( tm-tp ) complex resulted in formation of viscous gels consisting of randomly associated actin tm-tp filaments . alpha-actinin ( alphaa ) , a muscle protein recently detected in platelets , also induced random cross-linking of dissociated actin into gels .
C0025979
actin
C0001271
actin