title: Polarity and motility of large polymer-actin complexes.
abstract: The polarity of polymer-actin complexes obtained by mixing F-actin with synthetic polymers carrying positive charges such as poly(L-lysine), x,y-ionene bromide polymers, and poly(N-[3-(dimethylamino)propyl]acrylamide) (PDMAPAA-Q) have been investigated. Actin complexes formed with poly(L-lysine) and PDMAPAA-Q, which carry charges on their side chains, show a higher polarity than those formed with x,y-ionene bromide polymers, which have charges on their chain backbones. All these polymer-actin complex gels show motility on the surfaces coated with myosin by coupling to adenosine 5'-triphosphate hydrolysis. A linear correlation between the polarity of polymer-actin complex gels and the motility is observed.
authors.affiliation: Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan.
authors.forename: Akira
authors.initials: A
authors.lastname: Kakugo
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Shikinaka
authors.forename: Nozomi
authors.initials: N
authors.lastname: Takekawa
authors.forename: Shin
authors.initials: S
authors.lastname: Sugimoto
authors.forename: Yoshihito
authors.initials: Y
authors.lastname: Osada
authors.forename: Jian Ping
authors.initials: JP
authors.lastname: Gong
mesh_terms: D000180:Acrylic Resins; D000199:Actins / Q000737:chemistry*; D000255:Adenosine Triphosphate / Q000378:metabolism; D000818:Animals; D046911:Macromolecular Substances / Q000737:chemistry; D008974:Mollusca; D009068:Movement; D009218:Myosins; D011107:Polylysine; D011108:Polymers / Q000737:chemistry*; D055672:Static Electricity; D000099166:Polyacrylamides
chemical_list: D000180:Acrylic Resins; D000199:Actins; D000255:Adenosine Triphosphate; D046911:Macromolecular Substances; D009218:Myosins; D011107:Polylysine; D011108:Polymers; D000099166:Polyacrylamides