Research Article

Proteomic-Based Biosignatures in Breast Cancer Classification and Prediction of Therapeutic Response

Table 3

Top 20 differentially expressed proteins selected by supervised classification methods for classifying two tumor subtypes.

RankAccession no.Protein nameMWHER2+/TNBC meanSubcellular locationFunction

1gi∣10946578Thymosin 45 kDa2.99Cytoplasm, cytoskeletonFor cytoskeletal binding, involved in cell growth and maintenance
2gi∣4507521Transketolase68 kDa4.20CytosolInvolved in metabolism. Associated with cell proliferation of uterine and cervical cancer.
3gi∣1633054Cyclophilin A18 kDa2.45CytoplasmaInvolved in accelerate the folding of proteins
4gi∣73858568Complement component 1 inhibitor55 kDa0.33SecretedRegulating the complement cascade
5gi∣4557871Transferrin77 kDa16.38SecretedEssential for cell growth and iron-dependent metabolic processes
6gi∣90111766Keratin type I cytoskeletal 1944 kDa11.29CytoskeletonInvolved in metastatic progression of breast cancer
7gi∣10863895Thymosin 105 kDa2.25Cytoplasm, cytoskeletonFor cytoskeletal binding, involved in cell growth and maintenance
8gi∣5031863Galectin-3-binding protein65 kDa0.41SecretedModulating cell-cell and cell-matrix interactions
9gi∣4505753 (+1)Phosphoglycerate mutase 129 kDa2.51CytosolInvolved in glycolysis
10gi∣5174391Aldo-keto reductase family 1, member A137 kDa0.30CytosolInvolved in the reduction of biogenic and xenobiotic aldehydes
11gi∣21361176Aldehyde dehydrogenase 1A155 kDa0.39CytoplasmDetoxifying enzyme responsible for oxidating of intracellular aldehydes. A marker for cancer stem cells
12gi∣4505185Macrophage migration inhibitory factor12 kDa0.36Secreted, cytoplasmInvolved in integrin signaling pathways
13gi∣4507645 (+2)Triosephosphate isomerase 127 kDa2.49Cytosol, nucleusFatty acid biosynthesis, gluconeogenesis, glycolysis, lipid synthesis
14gi∣4930167Aldolase A39 kDa6.41Extracellular, cytoskeletonInvolved in glycolysis
15gi∣116241280Adenylyl cyclase-associated protein 1 (CAP 1)52 kDa3.03MembraneRegulating filament dynamics, cell polarity and signal transduction,
16gi∣21624607 (+5)Coactosin-like 116 kDa0.42Cytoplasm, cytoskeletonRegulating the actin cytoskeleton
17gi∣160420317Filamin A, alpha isoform 2281 kDa3.10CytoplasmAnchoring transmembrane proteins to the actin cytoskeleton, scaffold for cytoplasmic signaling proteins
18gi∣6005942Valosin-containing protein89 kDa3.26Cytosol, nucleusFragmentation of Golgi stacks during mitosis and reassembly
19gi∣5174539Cytosolic malate dehydrogenase36 kDa2.52CytoplasmInvolved glycolysis, oxidation reduction, and tricarboxylic acid cycle
20gi∣33286418 (+2)Pyruvate kinase 358 kDa6Cytoplasm, nucleusInvolved in glycolysis