Studios on Submaxillary Gland. X.

Pig S-Parotin. (1)

Abstract

There is a parotin-like substance in the hog subtaxillary gland, similar to those in the bovine and equine submaxillary glands. This was designated as the hog S-parotin. The fraction of 15% ammonium sulfate (pH 5.4-precipitate) showed the strongest activity of decreasing the serum calcium level in rabbits and also showed effect on circulating leucocyte counts in rabbits and ultraviolet absorption spectrum similar to those of the bovine and equine S-parotin. This fraction was found to have over 90% purity by electrophoretic analysis.