Interaction between ceruloplasmin and Sendai virus envolpe components. Note IV. Effect of ceruloplasmin on the hemagglutinin and neuraminidase activities of Tween 20-solubilized envelope components separated by adsorption--elution on RBC.

Ceruloplasmin inhibits the hemagglutinin (HA) and neuraminidase (N-ase) activities of envelope fragment populations isolated from Sendai virus disrupted by alkali--Tween 20 treatment. The inhibition induced differs according to adsorption--elution characteristics, value and ratio of HA and N-ase activities and sterical configuration of the envelope fragments.