Assessment of the frequency of rare electrophoretic variants of blood proteins in children with congenital pathology

The frequency of rare electrophoretic protein variants was studied in children with congenital anomalies. The stated frequency (1.07 X 10(-3] proved to be ten-fold higher than in the control group of newborns (1.09 X 10(-4). This difference was mainly due to rare variants of monomorphic proteins. The data obtained confirm the assumption of a functional importance of monomorphic protein loci.