1.17.1.3 6 7 both isoforms LAR1 and LAR2 676650 1.17.1.3 6 7.5 80% activity at pH 6 and pH 7.5 636458 1.17.1.3 6.2 7.8 95% activity at pH 6.2 and pH 7.8 636457 1.17.1.3 6.2 7.8 95% of maximal activity at pH 76.2 and pH 7.8 636457 1.17.1.3 6.4 8 no significant changes between pH 6.4 and pH 8.0 347999