Crystal structure of proteolyzed VapBC and DNA‐bound VapBC from Salmonella enterica Typhimurium LT2 and VapC as a putative Ca ²⁺ ‐dependent ribonuclease

Bacterial toxin-antitoxin (TA) system has gained attention for its essential roles in cellular maintenance and survival under harsh environmental conditions such as nutrient deficiency and antibiotic treatment. There are at least 14 TA systems in Salmonella enterica serovar Typhimurium LT2, a pathogenic bacterium, and none of the structures of these TA systems have been determined. We determined the crystal structure of the VapBC TA complex from...