Arp2/3-stimulated
actin
polymerization
is
an
autocatalytic
process
0
0.5
1
1.5
2
2.5
0
500
1000
1500
2000
Polymerised actin, µM
Time, s
-2
-1
0
1
-200
0
200
Ln [(F-Fo)/(Fmax-F)]
Time, s
Arp2/3
1-71 nM