(p)ppGpp

Polyphosphate kinase (RsPPK; PPK) is a key enzyme in bacteria that catalyzes the reversible conversion between inorganic polyphosphate (polyP) and nucleoside phosphates (ATP/ADP/AMP, etc.). Polyphosphate kinase antagonizes the expression of virulence genes regulated by (p) ppGpp, PigR, MglA and SspA in Francisella tularensis. Polyphosphate kinase can be used in studies related to tularemia .

DJK-5 is an antimicrobial peptide that targets and degrades guanosine pentaphosphate and tetraphosphate (pppGpp and ppGpp). DJK-5 kills bacteria within dentinal tubules, dental plaque and preformed oral biofilms, delays biofilm recovery, reduces the abundance of extracellular polysaccharides and the structural integrity of biofilm matrices, and inhibits the formation and biomass accumulation of dental plaque biofilms. DJK-5 permeabilizes bacterial membranes, induces bacterial morphological changes, inhibits bacterial growth, and exerts a synergistic effect on bacterial biofilms when used in combination with traditional antibiotics and Colistin (HY-113678). DJK-5 exhibits protease resistance and broad-spectrum antibiofilm activity, though its activity decreases in fetal bovine serum. DJK-5 can be used in studies of pulpitis, mixed biofilm infections, skin abscesses, dental caries, infections associated with failed root canal therapy, and Pseudomonas aeruginosa biofilm-related respiratory tract infections .

(-)-DMNP is an inhibitor targeting RelZ and Rel_Msm, with activity against mycobacteria. (-)-DMNP binds to structurally similar sites of RelZ and Rel_Msm, thereby inhibiting (p) ppGpp synthesis activity. (-)-DMNP inhibits the formation of persistent mycobacterial cells and eradicates their biofilms. (-)-DMNP can be used in the research of bacterial infections and tuberculosis .

Polyphosphate kinase (RsPPK; PPK), Propionibacterium shermanii is the Polyphosphate kinase (HY-E70426) derived from Propionibacterium shermanii. Polyphosphate kinase is a key enzyme in bacteria that catalyzes the reversible conversion between inorganic polyphosphate (polyP) and nucleoside phosphates (ATP/ADP/AMP, etc.). Polyphosphate kinase antagonizes the expression of virulence genes regulated by (p) ppGpp, PigR, MglA and SspA in Francisella tularensis. Polyphosphate kinase can be used in studies related to tularemia .