Inhibitors | Comment | Organism | Structure |
---|---|---|---|
1,2-dihydroxydecane-3,4-dione | - |
Salmonella enterica | |
1,2-dihydroxyheptane-3,4-dione | - |
Salmonella enterica | |
1,2-dihydroxyhexane-3,4-dione | weak inhibition | Salmonella enterica | |
1,2-dihydroxyoctane-3,4-dione | - |
Salmonella enterica |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | the bi-substrate kinetic mechanism is rapid equilibrium ordered, Michaelis-Menten kinetics, overview | Salmonella enterica | |
0.15 | - |
ATP | pH and temperature not specified in the publication | Salmonella enterica | |
0.27 | - |
1,2-dihydroxyoctane-3,4-dione | pH and temperature not specified in the publication | Salmonella enterica | |
1 | - |
4,5-dihydroxypentane-2,3-dione | pH and temperature not specified in the publication | Salmonella enterica | |
1.1 | - |
1,2-dihydroxyhexane-3,4-dione | pH and temperature not specified in the publication | Salmonella enterica | |
1.4 | - |
1,2-dihydroxyheptane-3,4-dione | pH and temperature not specified in the publication | Salmonella enterica |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | required | Salmonella enterica |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + (4S)-4,5-dihydroxypentane-2,3-dione | Salmonella enterica | the kinase LsrK phosphorylates C5 of the open form of the substrate | ADP + 2-hydroxy-3,4-dioxopentyl phosphate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Salmonella enterica | - |
serovar Typhimurium, gene lsrK | - |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
ATP + (S)-4,5-dihydroxypentane-2,3-dione = ADP + (S)-4-hydroxypentane-2,3-dione 5-phosphate | apid equilibrium ordered mechanism with ATP binding first | Salmonella enterica |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
ATP + (4S)-4,5-dihydroxypentane-2,3-dione | the kinase LsrK phosphorylates C5 of the open form of the substrate | Salmonella enterica | ADP + 2-hydroxy-3,4-dioxopentyl phosphate | - |
? | |
ATP + 1,2-dihydroxyheptane-3,4-dione | - |
Salmonella enterica | ADP + 2-hydroxy-3,4-dioxoheptyl phosphate | - |
? | |
ATP + 1,2-dihydroxyhexane-3,4-dione | - |
Salmonella enterica | ADP + 2-hydroxy-3,4-dioxohexyl phosphate | - |
? | |
ATP + 1,2-dihydroxyoctane-3,4-dione | - |
Salmonella enterica | ADP + 2-hydroxy-3,4-dioxooctyl phosphate | - |
? | |
ATP + 4,5-dihydroxypentane-2,3-dione | the kinase LsrK phosphorylates C5 of the open form of the substrate | Salmonella enterica | ADP + 2-hydroxy-3,4-dioxopentyl phosphate | - |
? | |
additional information | no activity with 1,2-dihydroxy-6-methylheptane-3,4-dione | Salmonella enterica | ? | - |
? |
Synonyms | Comment | Organism |
---|---|---|
LsrK kinase | - |
Salmonella enterica |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
1.5 | - |
1,2-dihydroxyoctane-3,4-dione | pH and temperature not specified in the publication | Salmonella enterica | |
5.8 | - |
1,2-dihydroxyhexane-3,4-dione | pH and temperature not specified in the publication | Salmonella enterica | |
5.8 | - |
1,2-dihydroxyheptane-3,4-dione | pH and temperature not specified in the publication | Salmonella enterica | |
7.6 | - |
ATP | pH and temperature not specified in the publication | Salmonella enterica | |
7.6 | - |
4,5-dihydroxypentane-2,3-dione | pH and temperature not specified in the publication | Salmonella enterica |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
ATP | - |
Salmonella enterica |
IC50 Value | IC50 Value Maximum | Comment | Organism | Inhibitor | Structure |
---|---|---|---|---|---|
0.005 | - |
pH and temperature not specified in the publication | Salmonella enterica | 1,2-dihydroxyoctane-3,4-dione | |
0.0053 | - |
pH and temperature not specified in the publication | Salmonella enterica | 1,2-dihydroxyheptane-3,4-dione | |
0.025 | - |
pH and temperature not specified in the publication | Salmonella enterica | 1,2-dihydroxydecane-3,4-dione | |
0.05 | - |
above, pH and temperature not specified in the publication | Salmonella enterica | 1,2-dihydroxyhexane-3,4-dione |
General Information | Comment | Organism |
---|---|---|
metabolism | the enzyme is involved in quorum sensing, one type of bacterial cell-to-cell communication, which co-ordinates bacterial behaviors within a population. The communication is mediated by a plethora of diffusible signaling molecules, called autoinducers. AI-2 signaling is carried out by the Lsr proteins | Salmonella enterica |
additional information | analysis of structure-activity relationship, overview | Salmonella enterica |
physiological function | in enteric bacteria, the kinase LsrK catalyzes the phosphorylation of the C5-hydroxyl group in the linear form of 4,5-dihydroxypentane-2,3-dione, the precursor of the type II bacterial quorum sensing molecule (AI-2), the enzyme is required for phosphorylation is required for autoinducer-2 sequestration in the cytoplasm and subsequent derepression of AI-2 related genes necessary for quorum development and autoinducer-2 quorum sensing activation, catalytic mechanism, overview. Phosphorylated AI-2 (phospho-DPD) binds and inactivates the transcriptional repressor protein LsrR thereby inducing the expression of the lsr operon and potentially other LsrR-regulated, QS-related genes | Salmonella enterica |