Esterase-6 (Es-6) in laboratory mice: hormone-influenced expression and linkage relationship to oligosyndactylism (Os), esterase-1 (Es-1), and esterase-2 (Es-2) in chromosome 8.
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abstract
Allelic differences at an esterase locus designated Es-6 exist between mouse strain C57 BL/6J and a laboratory stock of M.m. molossinus. Strain C57BL/6J has been assigned the allele Es-6a and M. m. molossinus the alternate allele Es-6b. Kidney expression of the electrophoretic esterase band controlled by the Es-6 locus is sex influenced, with increased activity apparently induced by testosterone. A four-point test cross established the gene order Os-Es-1-Es-6-Es-2 within a 10-cM segment on chromosome 8.
