Detection of human recombinant PCT by monoclonal anti- bodies specific to N-terminal fragment of PCT after 15% SDS-PAGE in reducing conditions. Antigen loaded - 100 ng/track. 1 – GTX14816/Procalcitonin antibody [6F10] 2 – GTX14813/Procalcitonin antibody [27A3] 3 – GTX14817/Procalcitonin antibody [44d9]