Localization of the muscle, liver, and brain glycogen phosphorylase genes on linkage maps of mouse chromosomes 19, 12, and 2, respectively

Thomas M Glaser, Kathryn E. Matthews, John W. Hudson, Pankaj Seth, David E. Housman, Michael M. Crerar

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Mammalian glycogen phosphorylases comprise a family of three isozymes, muscle, liver, and brain, which are expressed selectively and to varying extents in a wide variety of cell types. To better understand the regulation of phosphorylase gene expression, we isolated partial cDNAs for all three isozymes from the rat and used these to map the corresponding genes in the mouse. Chromosome mapping was accomplished by comparing the segregation of phosphorylase restriction fragment length polymorphisms (RFLPs) with 16 reference loci in a multipoint interspecies backcross between Mus musculus domesticus and Mus spretus. The genes encoding muscle, liver, and brain phosphorylases (Pygm, Pygl, and Pygb) are assigned to mouse chromosomes 19, 12, and 2, respectively. Their location on separate chromosomes indicates that distinct cis-acting elements govern the differential expression of phosphorylase isozymes in various tissues. Our findings significantly extend the genetic maps of mouse chromosomes 2, 12, and 19 and can be used to define the location of phosphorylase genes in man more precisely. Finally, this analysis suggests that the previously mapped "muscle-deficient" mutation in mouse, mdf, is closely linked to the muscle phosphorylase gene. However, muscle phosphorylase gene structure and expression appear to be unaltered in mdf mdf mice, indicating that this mutation is not an animal model for the human genetic disorder McArdle's disease.

Original languageEnglish (US)
Pages (from-to)510-521
Number of pages12
JournalGenomics
Volume5
Issue number3
DOIs
StatePublished - 1989
Externally publishedYes

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Chromosomes, Human, Pair 19
Glycogen Phosphorylase
Chromosomes, Human, Pair 12
Phosphorylases
Liver Glycogen
Chromosomes, Human, Pair 2
Muscles
Brain
Genes
Isoenzymes
Glycogen Storage Disease Type V
Mutation
Inborn Genetic Diseases
Chromosome Mapping
Liver
Medical Genetics
Gene Expression Regulation
Restriction Fragment Length Polymorphisms
Animal Models
Complementary DNA

ASJC Scopus subject areas

  • Genetics

Cite this

Localization of the muscle, liver, and brain glycogen phosphorylase genes on linkage maps of mouse chromosomes 19, 12, and 2, respectively. / Glaser, Thomas M; Matthews, Kathryn E.; Hudson, John W.; Seth, Pankaj; Housman, David E.; Crerar, Michael M.

In: Genomics, Vol. 5, No. 3, 1989, p. 510-521.

Research output: Contribution to journalArticle

Glaser, Thomas M ; Matthews, Kathryn E. ; Hudson, John W. ; Seth, Pankaj ; Housman, David E. ; Crerar, Michael M. / Localization of the muscle, liver, and brain glycogen phosphorylase genes on linkage maps of mouse chromosomes 19, 12, and 2, respectively. In: Genomics. 1989 ; Vol. 5, No. 3. pp. 510-521.
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