Global protein alteration in Mycobacterium tuberculosis H37 RV ( Mtb-H37RV) of day 2 (control) and day 16 (persistent) samples (in duplicates) treated with antibiotics 8µg/ml of ciprofloxacin and 0.1 µg/ml of Isoniazid (to mimic persister stage) were accessed using 4 plex iTRAQ label.