RT Journal Article SR Electronic(1) A1 Crowley, NualaYR 1951 T1 Polysaccharidases of Group A Streptococci JF Microbiology, VO 5 IS 2 SP 239 OP 249 DO https://doi.org/10.1099/00221287-5-2-239 PB Microbiology Society, SN 1465-2080, AB SUMMARY: Proteinase produced by Group A streptococci was associated with a decrease in hyaluronidase production which was not related to any other known environmental condition. The concentration of proteinase which was correlated with decreased hyaluronidase production was constant for a given strain. Inactive polysaccharidase components in cell-free filtrates were converted to active form by a number of different agents, namely, sodium sulphite, zine and calcium ions, auto-claved broth and pantothenie acid. Bacterial dextran, pectin and inulia were depolymerized by cell-free filtrates and by partially purified enzymes derived from Type 4, Type 22 and Type 2 strains. Depolymerase was associated with hyaluronidase and amylase in biologically active material prepared by fractional precipitation., UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-5-2-239