Evidence for regulatory genes on mouse chromosome 7 that affect the quantitative expression of proteins in the fetal and newborn liver

Carol S. Giometti, M. Anne Gemmell, John Taylor, Sandra L. Tollaksen, Ruth Angeletti, Salome Gluecksohn-Waelsch

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A series of deletions around the albino locus on mouse chromosome 7 is believed to include one or more regulatory genes that control the activities of a cluster of liver enzymes. To further characterize the functions of this region of the mouse genome, we have used quantitative two-dimensional electrophoresis to analyze the effects of two of these deletions, c3H and c14Cos, on the expression of liver proteins. More than 400 distinct protein gene products were quantitated in livers from fetal and newborn wild-type homozygous (cch/cch), heterozygous (cch/c3H or cch/c14Cos), and deletion homozygous (c3H/c3H or c14Cos/c14Cos) mice. Livers of fetal and newborn c3H heterozygotes and homozygous wild-type littermates produced qualitatively identical protein patterns after two-dimensional electrophoresis. In livers of c3H homozygous fetuses, however, abnormal amounts (either increased or decreased relative to homozygous wild-type and heterozygous littermates) of 29 proteins were found. Twenty-eight of these 29 protein anomalies were also found in livers of newborn c3H homozygotes. Livers of fetal and newborn mice homozygous for the c14Cos deletion, which overlaps the c3H deletion and produces a similar phenotype, expressed normal amounts of these proteins. One of the 29 proteins (MSN807) has an amino-terminal sequence similar to a 23-kDa translationally controlled protein abundant in mouse erythroleukemia and sarcoma-180 cells. These results suggest that normal chromosome 7 contains genes, located within the region of the c3H but not the c14Cos deletion, that regulate the abundance of specific proteins in the liver. These proteins cannot be related to the phenotypic alterations shared by the c3H and c14Cos deletions.

Original languageEnglish (US)
Pages (from-to)2448-2452
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume89
Issue number6
StatePublished - 1992

Fingerprint

Fetal Proteins
Chromosomes, Human, Pair 7
Regulator Genes
Liver
Proteins
Electrophoresis
Sarcoma 180
Leukemia, Erythroblastic, Acute
Homozygote
Heterozygote
Fetus
Genome

Keywords

  • c deletion/c deletion
  • Quantitative effects
  • Two-dimensional electrophoresis

ASJC Scopus subject areas

  • Genetics
  • General

Cite this

Evidence for regulatory genes on mouse chromosome 7 that affect the quantitative expression of proteins in the fetal and newborn liver. / Giometti, Carol S.; Gemmell, M. Anne; Taylor, John; Tollaksen, Sandra L.; Angeletti, Ruth; Gluecksohn-Waelsch, Salome.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 89, No. 6, 1992, p. 2448-2452.

Research output: Contribution to journalArticle

Giometti, Carol S. ; Gemmell, M. Anne ; Taylor, John ; Tollaksen, Sandra L. ; Angeletti, Ruth ; Gluecksohn-Waelsch, Salome. / Evidence for regulatory genes on mouse chromosome 7 that affect the quantitative expression of proteins in the fetal and newborn liver. In: Proceedings of the National Academy of Sciences of the United States of America. 1992 ; Vol. 89, No. 6. pp. 2448-2452.
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