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  • Title: [The comparison of properties of alpha-amylase from the third and fourth stage of Anisakis simplex larvae].
    Author: Lopieńska E, Zołtowska K, Rokicki J.
    Journal: Wiad Parazytol; 2001; 47(3):323-7. PubMed ID: 16894742.
    Abstract:
    alpha-Amylase is present in the third (L3) and in the fourth-stage (L4) of larvae from Anisakis simplex. The enzymes from both sources differ in some of their properties. alpha-Amylase from L3 showed a maximum at pH 7.8, enzyme from L4 stage at pH 6.5. The alpha-amylase from L3 was mainly lysosomal enzyme. The enzyme from L4 was located in the microsomal fraction. The L3 alpha-amylase showed the inhibition by EDTA and by -SH reagent iodoacetic acid. These agents did not change the activity of L4 enzyme. Both izoenzymes were unaffected by calcium and magnesium ions. Generally the alpha-amylase from L4 stage had higher activity (3.71 u/mg) than L3 one (2.29 u/mg).
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