Mass spectrometry identification of proteins in spots up-regulated in or unique to T47D as compared to MCF7 cell line.

The function description and/or biological process were from the UniProt database (www.uniprot.org). Spot, spot number; FC, fold change; MW, molecular weight; pI exp, isoelectric point as determined from the 2-D gel experiments; Pep, number of unique peptides; U, unique. The number after the protein name indicated the additional spot in which the protein was found.‡Proteins previously reported to be used as breast cancer biomarkers and which were overexpressed in cancerous cells based on data from the literature [10], [14], [15].*Proteins used for Q-RT-PCR validation.