Calibration curves of several procalcitonin sandwich ELISAs using a range of monclonal antibodies available agaisn't procalcitonin, calcitonin and catacalcin fragments. Capture antibodies used at 1 µg/well and detection antibodies at 0.1 µg/well. Dark blue square = ab11493 [16B5] (calcitonin fragment) and ab11494 [42] (procalcitonin fragment). Light grey circle = ab11497 [24B2] (calcitonin fragment) and ab11484 [13B9] (calcitonin fragment). Grey triangle = ab11487 [14C12] (catacalcin fragment) and ab11496 [14A2] (calcitonin fragment). Dark grey circle = ab14813 [27A3] (procalcitonin fragment) and ab11491 [22A11] (catacalcin fragment).
Amino acid sequence and schematic diagram of human procalcitonin and the N-terminal, calcitonin, and katacalcin (catacalcin) fragments.