Mouse sn-glycerol-3-phosphate dehydrogenase: molecular cloning and genetic mapping of a cDNA sequence.

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Abstract
The isozymes of glycerol-3-phosphate dehydrogenase (GPDH; sn-glycerol-3-phosphate:NAD+ 2-oxidoreductase, EC 1.1.1.8) in tissues of the mouse are coded for by 2 structural genes, Gdc-1 and Gdc-2, located on chromosomes 15 and 9, respectively. To investigate the expression of these genes, a GPDH c[complementary]DNA clone were isolated from a mRNA preparation isolated from brown adipose tissue. The GPDH cDNA clone was identified by colony hybridization and hybrid selection of a mRNA that was translated in vitro to produce immunoprecipitable GPDH protein. The GPDH cDNA hybridized to a single mRNA species that migrated at the position of 23S rRNA. This GPDH cDNA clone was mapped to the Gdc-1 locus by identification of a restriction enzyme polymorphism present in genomic DNA isolated from Gdc-1 congeneic lines of mice.