Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
, 35 (1), 59-63

Identification of Capsular Antigens in Serratia Marcescens


Identification of Capsular Antigens in Serratia Marcescens

H M Aucken et al. J Clin Microbiol.


Previous studies with 31 strains of Serratia marcescens, including 28 reference O-serotype strains, have indicated that 19 of them have an acidic polysaccharide which copurifies with lipopolysaccharide during phenol-water extraction. Polysaccharide in crude extracts from 18 of the 19 strains was precipitated with Cetavlon (hexadecyltrimethyl ammonium bromide), and capsules were demonstrated around these 18 strains by Indian ink exclusion zones. Capsule-antibody binding by the Quellung reaction suggested that the acidic polysaccharide formed the capsule around the bacterial cells. Anticapsular (anti-K) antibody was detected in reference O antisera which had been prepared against boiled whole cells. Cross-titration and absorption studies revealed 14 different K antigens among these strains.

Similar articles

See all similar articles

Cited by 3 articles


    1. Carbohydr Res. 1985 Dec 15;145(1):81-7 - PubMed
    1. J Hyg (Lond). 1980 Apr;84(2):269-83 - PubMed
    1. Carbohydr Res. 1988 Aug 15;179:341-8 - PubMed
    1. Carbohydr Res. 1989 Mar 15;186(2):295-300 - PubMed
    1. Zentralbl Bakteriol. 1991 Oct;275(4):495-9 - PubMed

MeSH terms

LinkOut - more resources