Sample (2mg) Tumor Type Proteins Identified Case A normal tissue   172 Case A cancer tissue TNBC 227 Case B normal tissue   146 Case B cancer tissue Non-TNBC 147 MDAMB231 cells TNBC 392 MDAMB468 cells TNBC 206 MCF7 cells Non-TNBC 346 T47D cells Non-TNBC 290

Table 1: Total number of protein in hydrophobic fraction of 2mg tissue lysates identified by LTQ-Orbitrap.