proteiniclasticum proteiniclasticum proteiniclasticum is a strictly anaerobic and proteolytic genus of bacteria from the family of clostridiaceae with one known species (proteiniclasticum ruminis). proteiniclasticum ruminis has been isolated from the content of a yak rumen. proteiniclasticum scientific classification domain: bacteria phylum: bacillota class: clostridia order: clostridiales family: clostridiaceae genus: proteiniclasticumzhang et al. 2010 species p. ruminis