Neuraminidases occurrence

One of the latest volumes in the series International Review of Science covers the isolation and structures of glycoproteins from ovarian cysts, gastric mucosa, submaxilliary glands, and erythrocytes. Physical and chemical data have been compiled for glycoproteins. Other reviews have discussed the chemistry, occurrence, and metabolism of sialic acids, with reference to cell-surface neuraminidases and the metabolism of molecules containing residues of sialic acid by cells transformed with tumourigenic viruses, and the effects of neuraminidases on intermolecular and intercellular forces. ... 

Horvat, A., and Touster, O., 1968, On the lysosomal occurrence and the properties of the neuraminidase of rat liver and of the neuraminidase of rat liver and of Ehrlich ascites tumor cells, J. Biol. Chem. 243 4380-4390. 

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