Ka. Haynes et al., PURIFICATION AND CHARACTERIZATION OF A 93 KDA ASPERGILLUS-FUMIGATUS ANTIGEN WITH DIAGNOSTIC POTENTIAL, Journal of medical and veterinary mycology, 34(6), 1996, pp. 421-426
A glycoprotein with an apparent molecular weight of 93 kDa was purifie
d from a water-soluble extract of Aspergillus fumigatus NCPF 2109 by s
ingle step affinity chromatography using the mannose-specific snowdrop
(Galanthus nivalis) lectin coupled to agarose. The carbohydrate moiet
y contained only mannose and galactose. Partial sequencing of cyanogen
bromide fragments of the antigen yielded two sequences, KQNKP and GEI
PMKF?PQL, with no homology to any reported proteins. In a preliminary
evaluation of its diagnostic potential the 93 kDa antigen was recogniz
ed by the sera of four patients with allergic bronchopulmonary aspergi
llosis, in addition to a monoclonal antibody raised against a partiall
y purified fraction of the A. fumigatus water-soluble extract.