β1-integrin mediates MAG-induced turning responses of embryonic hippocampal neurons and postnatal cerebellar neurons. Shown is the summary of turning angles for axonal growth cones of rat E17 hippocampal neurons and P5 cerebellar neurons (CB) in a gradient of MAG (150 μg/ml in the pipette), with or without the presence of Ha2/5 (1.0 μg/ml). Values represent mean ± s.e.m. Numbers associated with the bar graph indicate the number of growth cones analyzed. "*" indicates significant difference (p < 0.01, ANOVA).