[Immunologic properties of fructose diphosphate aldolase in rabbit muscle under normal conditions and during fasting]

Methods of double diffusion failed to detect differences in immunological properties of aldolase from muscles of normal rabbits and those fasting for a long time. Therefore a quantitative method was used to inhibit the aldolase activity by homologous and heterologous antisera. The data obtained evidence for appearance of additional antigen determinants in an algolase molecule of the animals fasting for a long time; the determinants being sterically connected with the site of the enzyme active centre.