Biochemical Studies on Carbohydrates

CCV. Mucopolysaccharides and Mucoproteins in Pig Lung First Paper: Glucidamins and a Molisch-positive Mucopolysaccharide

Abstract

1. Three glucidamins and one mucopolysaccharide were isolated from fresh pig lungs in electrophoretically homogeneous or almost homogeneous state.
2. The glucidamins are composed of galactosamine, glucosamine, galactose, mannose, L-fucose, sialic acid and 14 or more amino acids, and the mucopolysaccharide of galactosamine, glucosamine, galactose, glucose, mannose, L-fucose, xylose and/or lyxose, sialic acid, aspartic and glutamic acids, glycine, serine, threonine, alanine, leucine and/or isoleucine, proline and arginine.
3. Such physical properties as solubility, precipitability, ultraviolet absorptivity, optical rotatory power and electrophoretic mobility and blood group activity of the preparations were also examined.