A gene apparently determining the extent of sialylation of lysosomal ?-mannosidase in mouse liver

Abstract
Organ-specific electrophoretic heterogeneity of lysosomal α-mannosidase has been observed within individual strains of inbred mice. Polymorphism between C57BL/6J and CBA/J for liver lysosomal α-mannosidase is determined by a single genetic locus on chromosome 5 and appears to be the result of differences in sialylation of the lysosomal enzyme. Two different patterns of expression of development of the liver electrophoretic forms have been observed.