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. 1967 Jun;103(3):805–810. doi: 10.1042/bj1030805

Electrophoretic properties of ovomucoid

M D Melamed 1,*
PMCID: PMC1270487  PMID: 6049406

Abstract

1. The nature of the electrophoretic heterogeneity of ovomucoid was investigated. Optimum resolution of the fractions on starch-gel electrophoresis occurred over a narrow range of pH and ionic strength. The pattern was not altered in the presence of 8m-urea but the bands were sharper. Ovomucoid–trypsin complex is stable at pH4·6 but dissociated in 6m-urea. 2. The two major fractions of ovomucoid were eluted from the gels. One of these was virtually free of sialic acid and the other, which contained 0·4mole of sialic acid/mole of protein, split into two components on electrophoresis after neuraminidase treatment. It was concluded that these two components, and likewise the two major fractions of ovomucoid, differ by a unit charge/mol. Differences in sialic acid content account for only part of the electrophoretic heterogeneity of ovomucoid.

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Selected References

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