Influence of DNA copy number and mRNA levels on the expression of breast cancer related proteins

• Correlation analyses indicate regulatory relationships between genes and proteins.
• Stratification by molecular subtype disclosed relationships between molecular levels.
• Cyclin B1 copy number aberrations show subtype-dependent prognostic relevance.
• Elevated CASP7 protein in basal-like tumors is accompanied by low levels of hsa-mir-29c.