Cal ke heterodimer, e entsoeng ka MRP 8 le MRP 14. E teng ka neutrophils cytoplasm mme e hlahisoa ka lisele tsa mononuclear cell. Cal ke protheine ea "acute phase", e na le mohato o tsitsitseng hantle hoo e ka bang beke e le 'ngoe mantleng a batho, e ikemiselitse ho ba letšoao la lefu la ho ruruha ha mala. Thepa ke teko e bonolo, e bonoang ea semiqualitative e lemohang cal mantleng a batho, e na le kutlo e phahameng ea ho lemoha le ho hlaka ho matla. Teko e ipapisitseng le melao-motheo ea karabelo ea li-antibodies tse peli tsa sandwich le theknoloji ea tlhahlobo ea khauta ea immunochromatographic, e ka fana ka sephetho nakong ea metsotso e 15.