Purity > 90% as determined by SDS-PAGE. MW: 39.8kDa. Partial: 1-206aa. N-terminal 6xHis-SUMO-tagged. Mycoplasma pneumoniae (strain ATCC 29342 / M129). ATP-dependent serine protease that mediates the selective degradation of mutant and abnormal proteins as well as certain short-lived regulatory proteins. Required for cellular homeostasis and for survival from DNA damage and developmental changes induced by stress. Degrades polypeptides processively to yield small peptide fragments that are 5 to 10 amino acids long. Binds to DNA in a double-stranded, site-specific manner.