iTRAQ quantification project, for 6 Homo_sapiens samples named DLD1-1, DLD1-2, DLD1-STAG3-SMC1B-REC8-1, DLD1-STAG3-SMC1B-REC8-2, DLD1-STAG3-SMC1B-RAD21L-1, DLD1-STAG3-SMC1B-RAD21L-2