Cal ke heterodimer, e entsoeng ka MRP 8 le MRP 14. E fumaneha ka har'a cytoplasm ea neutrophils 'me e hlahisoa holim'a lera la sele ea mononuclear. Cal ke liprotheine tsa mohato o matla, e na le mohato o tsitsitseng hantle hoo e ka bang beke e le 'ngoe mantle a batho, e fumanoe e le letšoao la lefu la ho ruruha ha mala. Kiti ke teko e bonolo, e bonahalang ea semiqualitative e fumanang cal mantle a batho, e na le kutloelo-bohloko e phahameng ea ho lemoha le ho hlaka ho matla. Teko e ipapisitse le molao-motheo oa karabelo ea sandwich ea li-antibodies tse peli tse ikhethang le theknoloji ea tlhahlobo ea khauta ea immunochromatographic, e ka fana ka sephetho metsotsong e 15.