Cloned (Comment) | Organism |
---|---|
expressed in Escherichia coli Tuner (DE3) cells | Listeria monocytogenes |
Crystallization (Comment) | Organism |
---|---|
apoenzyme and enzyme in complex with Fe-coproporphyrin III, vapor diffusion method, using 0.1 M bicine pH 9.0, 10% (w/v) PEG6000 | Listeria monocytogenes |
HemQ crystallized as a pentamer in space group P1211, to 1.69 A resolution | Listeria monocytogenes serotype 1/2a |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.037 | - |
H2O2 | at pH 7.0 and 25°C | Listeria monocytogenes | |
0.0371 | - |
H2O2 | pH 7.0, temperature not specified in the publication | Listeria monocytogenes serotype 1/2a |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
Fe-coproporphyrin III + H2O2 | Listeria monocytogenes | - |
harderoheme III + CO2 + H2O | - |
? | |
Fe-coproporphyrin III + H2O2 | Listeria monocytogenes | overall reaction | protoheme + CO2 + H2O | - |
? | |
Fe-coproporphyrin III + H2O2 | Listeria monocytogenes ATCC BAA-679 | - |
harderoheme III + CO2 + H2O | - |
? | |
Fe-coproporphyrin III + H2O2 | Listeria monocytogenes ATCC BAA-679 | overall reaction | protoheme + CO2 + H2O | - |
? | |
harderoheme III + H2O2 | Listeria monocytogenes | - |
protoheme + CO2 + H2O | - |
? | |
harderoheme III + H2O2 | Listeria monocytogenes ATCC BAA-679 | - |
protoheme + CO2 + H2O | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Listeria monocytogenes | Q8Y5F1 | - |
- |
Listeria monocytogenes ATCC BAA-679 | Q8Y5F1 | - |
- |
Listeria monocytogenes serotype 1/2a | Q8Y5F1 | - |
- |
Listeria monocytogenes serotype 1/2a ATCC BAA-679 | Q8Y5F1 | - |
- |
Purification (Comment) | Organism |
---|---|
StrepTrap column chromatography | Listeria monocytogenes |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
Fe-coproporphyrin III + 2 H2O2 | - |
Listeria monocytogenes serotype 1/2a | protoheme + 2 CO2 + 4 H2O | - |
? | |
Fe-coproporphyrin III + 2 H2O2 | - |
Listeria monocytogenes serotype 1/2a ATCC BAA-679 | protoheme + 2 CO2 + 4 H2O | - |
? | |
Fe-coproporphyrin III + H2O2 | - |
Listeria monocytogenes | harderoheme III + CO2 + H2O | - |
? | |
Fe-coproporphyrin III + H2O2 | - |
Listeria monocytogenes ATCC BAA-679 | harderoheme III + CO2 + H2O | - |
? | |
Fe-coproporphyrin III + H2O2 | overall reaction | Listeria monocytogenes | protoheme + CO2 + H2O | - |
? | |
Fe-coproporphyrin III + H2O2 | overall reaction | Listeria monocytogenes ATCC BAA-679 | protoheme + CO2 + H2O | - |
? | |
harderoheme III + H2O2 | - |
Listeria monocytogenes | protoheme + CO2 + H2O | - |
? | |
harderoheme III + H2O2 | - |
Listeria monocytogenes ATCC BAA-679 | protoheme + CO2 + H2O | - |
? |
Subunits | Comment | Organism |
---|---|---|
homopentamer | x-ray crystallography | Listeria monocytogenes |
Synonyms | Comment | Organism |
---|---|---|
HemQ | - |
Listeria monocytogenes |
lmo2113 | - |
Listeria monocytogenes serotype 1/2a |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0065 | - |
H2O2 | at pH 7.0 and 25°C | Listeria monocytogenes | |
0.0065 | - |
H2O2 | pH 7.0, temperature not specified in the publication | Listeria monocytogenes serotype 1/2a |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
heme | ferric five-coordinated coproheme iron of HemQ is weakly bound by a neutral proximal histidine H174 | Listeria monocytogenes serotype 1/2a |
kcat/KM Value [1/mMs-1] | kcat/KM Value Maximum [1/mMs-1] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.18 | - |
Fe-coproporphyrin III | pH 7.0, temperature not specified in the publication | Listeria monocytogenes serotype 1/2a | |
0.18 | - |
H2O2 | at pH 7.0 and 25°C | Listeria monocytogenes |