This study investigates three radiation exposure scenarios in BALB/c and C57BL/6 mice: (1) low dose (LD) group -- four weekly doses of 7.5 cGy, (2) high dose (HD) group -- four weekly doses of 1.8 Gy, (3) unexposed group -- four weekly sham exposures. We then used comparative expression profiles of the mouse mammary gland and cardiac blood to build a model of candidate tissue functions associated with LD cancer susceptibility in these strains and murine and human knowledgebases to characterize these tissue functions and their relevance to breast cancer.
Genetic differences in transcript responses to low-dose ionizing radiation identify tissue functions associated with breast cancer susceptibility.
Sex, Age, Specimen part
View SamplesMolecular distinctions between the stasis and telomere attrition senescence barriers in cultured human mammary epithelial cells
Molecular distinctions between stasis and telomere attrition senescence barriers shown by long-term culture of normal human mammary epithelial cells.
Specimen part, Subject
View SamplesTotal RNA from three replicate cultures of wild-type and mutant strains was isolated and the expression profiles were determined using Affymetrix arrays. Comparisons between the sample groups allow the identification of genes regulated by histone H2A^4-20 mutant.
Regulation of gene transcription by the histone H2A N-terminal domain.
No sample metadata fields
View SamplesTotal RNA from three replicate cultures of wild-type and mutant strains was isolated and the expression profiles were determined using Affymetrix arrays. Comparisons between the sample groups allow the identification of genes regulated by the histone H2A K4,7G mutant.
Regulation of gene transcription by the histone H2A N-terminal domain.
No sample metadata fields
View SamplesTotal RNA from two replicate cultures of wild-type and mutant strains was isolated and the expression profiles were determined using Affymetrix arrays. Comparisons between the sample groups allow the identification of genes regulated by histone H3 K4,36,79G mutant.
Genetic and genomewide analysis of simultaneous mutations in acetylated and methylated lysine residues in histone H3 in Saccharomyces cerevisiae.
No sample metadata fields
View SamplesTotal RNA from two replicate cultures of wild-type and mutant strains was isolated and the expression profiles were determined using Affymetrix arrays. Comparisons between the sample groups allow the identification of genes regulated by histone H3 K4,9,14,18,23,27,36,79G mutant.
Genetic and genomewide analysis of simultaneous mutations in acetylated and methylated lysine residues in histone H3 in Saccharomyces cerevisiae.
No sample metadata fields
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Simultaneous mutation of methylated lysine residues in histone H3 causes enhanced gene silencing, cell cycle defects, and cell lethality in Saccharomyces cerevisiae.
No sample metadata fields
View SamplesTotal RNA from three replicate cultures of wild-type and mutant strains was isolated and the expression profiles were determined using Affymetrix arrays. Comparisons between the sample groups allow the identification of genes regulated by histone H2B K111A mutant.
Novel functional residues in the core domain of histone H2B regulate yeast gene expression and silencing and affect the response to DNA damage.
No sample metadata fields
View SamplesTotal RNA from three replicate cultures of wild-type and mutant strains was isolated and the expression profiles were determined using Affymetrix arrays. Comparisons between the sample groups allow the identification of genes regulated by histone H2B R102A mutant.
Novel functional residues in the core domain of histone H2B regulate yeast gene expression and silencing and affect the response to DNA damage.
No sample metadata fields
View SamplesTotal RNA from three replicate cultures of wild-type and mutant strains was isolated and the expression profiles were determined using Affymetrix arrays. Comparisons between the sample groups allow the identification of genes regulated by H3 K4,79R mutant.
Simultaneous mutation of methylated lysine residues in histone H3 causes enhanced gene silencing, cell cycle defects, and cell lethality in Saccharomyces cerevisiae.
No sample metadata fields
View Samples