• 1 January 1968
    • journal article
    • research article
    • Vol. 14  (2) , 159-+
Abstract
Waxes-D from M. tuberculosis var. hominis, strains Canetti and Brevannes, and from M. kansasii No. 21 which are macromolecular peptido-glycoliplds with important biological properties (Freund''s adjuvant effect; induction of adjuvant arthritis) were submitted to further purifications. The fractions obtained after ultracentrifugation in ether were acetylated and chromatographed on silicic acid. The quantitative amino-acid compositions of the different subtractions were established. The study of these compounds seemed important as the arthritis-inducing ability of wax-D was lost after acetylatioa. Furthermore, rats injected with an acetylated wax-D were protected against the arthritis-inducing ability of unaltered wax-D.