%0 Journal Article %A Czekalowski, J. W. %A Hall, D. A. %A Woolcock, P. R. %T Studies on Proteolytic Activity of Mycoplasmas: Gelatinolytic Property %D 1973 %J Microbiology, %V 75 %N 1 %P 125-133 %@ 1465-2080 %R https://doi.org/10.1099/00221287-75-1-125 %I Microbiology Society, %X SUMMARY: Twelve species of Mycoplasma, comprising 15 strains, were examined for proteolytic activity. Only Mycoplasma arthritidis, strains PG6 and PG27, liquefied gelatin. The active principle shows enzymatic properties, appears both intra- and extracellularly and attacks only denatured collagen being without effect on native collagen and elastic tissue. The value of proteolytic activity as a taxonomic marker is discussed. %U https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-75-1-125