Labadie J
Station de Recherches sur la Viande, INRA de Theix, Ceyrat, France.
J Appl Bacteriol. 1990 Dec;69(6):828-33. doi: 10.1111/j.1365-2672.1990.tb01580.x.
The collagenase-producing bacterium tentatively called Empedobacter collagenolyticum was recently identified as Corynebacterium rathayii. Production of collagenase was studied in different media containing peptones or peptides of known sequences. A hexapeptide, Pro-Ala-Gly-Pro-Pro-Gly, is an inducer almost as good as collagen.