%0 Journal Article %A Guex-Holzer, S. %A Tomcsik, J. %T The Isolation and Chemical Nature of Capsular and Cell-wall Haptens in a Bacillus Species %D 1956 %J Microbiology, %V 14 %N 1 %P 14-25 %@ 1465-2080 %R https://doi.org/10.1099/00221287-14-1-14 %I Microbiology Society, %X SUMMARY: By extracting the capsular material of Bacillus M with hot water, d-glutamic acid polypeptide and a polysaccharide were isolated. The polypeptide absorbs the antibody from an anthrax immune serum, which reveals a homogenously distributed capsular material in Bacillus M. The polysaccharide absorbs one of the homologous antibodies, which renders a characteristic structure visible in the capsule and gives a specific cell-wall reaction. By using lysozyme digestion for the dissolution of the capsule or of the cell-wall a mucoprotein was isolated. The mucoprotein gives serological reactions identical with those of the polysaccharide, and it corresponds to a less degraded form of the cellular substance participating in building up both the cell wall and the capsular structure. %U https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-14-1-14