the antigen was composed of 35 % carbohydrate , 2.6 % protein , 1.8 % phospholipid , and 1 % 2-keto-3-deoxyoctonate and was important in the host 's antibody response because it inhibited the indirect immunofluorescent and microagglutination titers of convalescent sera from patients with legionnaires ' disease .
C0003320
antigen
C0301872
host 's