Original research paper
Studies on the sheath of fourth stage larvae of the nematode parasite Nippostrongylus muris

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Abstract

A method is described to obtain the fourth larval stage sheath of the nematode Nippostrongylus muris.

By chemical and histochemical techniques the sheath was found to contain protein, carbohydrate, and lipid.

The amino acid composition, determined semi-quantitatively by paper chromatography of sheath hydrolyzates resembles in general that of collagen except in the high proportion of tyrosine found.

The hydrothermal behavior and the effects of certain reagents and enzymes on the sheath are described.

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