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Literature summary for 2.1.1.165 extracted from
- Formation and emission of monohalomethanes from marine algae (1997), Phytochemistry, 45, 67-73.
No PubMed abstract available
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| Iodide | above 25 mM | Pavlova gyrans |  |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.024 | - |
S-adenosyl-L-methionine | pH 7.0, 30°C | Pavlova gyrans | |
| 63 | - |
Iodide | pH 7.0, 30°C | Pavlova gyrans | |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| additional information | Papenfussiella kuromo | marine microalgae are the main oceanic source of methyl bromide. The monohalomethanes produced by marine microalgae are probably important in the global cycling of gaseous organohalogen species, especially bromine and iodine | ? | - |
? | |
| additional information | Sargassum horneri | marine microalgae are the main oceanic source of methyl bromide. The monohalomethanes produced by marine microalgae are probably important in the global cycling of gaseous organohalogen species, especially bromine and iodine | ? | - |
? | |
| additional information | Pavlova gyrans | marine microalgae are the main oceanic source of methyl bromide. The monohalomethanes produced by marine microalgae are probably important in the global cycling of gaseous organohalogen species, especially bromine and iodine. From the viewpoint of stratospheric ozone depletion, methyl bromide is the most destructive compound because it has a high ozone depletion potential | ? | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Papenfussiella kuromo | - |
- |
- |
| Pavlova gyrans | - |
- |
- |
| Sargassum horneri | - |
- |
- |
Storage Stability
| Storage Stability | Organism |
|---|---|
| -20°C, enzyme in cell extract is unstable and loses activities almost completely upon storage even if dithioerythritol, EDTA, protease inhibitor or glycerol are added to the extracts | Papenfussiella kuromo |
| -20°C, enzyme in cell extract is unstable and loses activities almost completely upon storage even if dithioerythritol, EDTA, protease inhibitor or glycerol are added to the extracts | Sargassum horneri |
| 4°C, enzyme in cell extract is unstable and loses activities almost completely upon storage even if dithioerythritol, EDTA, protease inhibitor or glycerol are added to the extracts | Papenfussiella kuromo |
| 4°C, enzyme in cell extract is unstable and loses activities almost completely upon storage even if dithioerythritol, EDTA, protease inhibitor or glycerol are added to the extracts | Sargassum horneri |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| additional information | marine microalgae are the main oceanic source of methyl bromide. The monohalomethanes produced by marine microalgae are probably important in the global cycling of gaseous organohalogen species, especially bromine and iodine | Papenfussiella kuromo | ? | - |
? | |
| additional information | marine microalgae are the main oceanic source of methyl bromide. The monohalomethanes produced by marine microalgae are probably important in the global cycling of gaseous organohalogen species, especially bromine and iodine | Sargassum horneri | ? | - |
? | |
| additional information | marine microalgae are the main oceanic source of methyl bromide. The monohalomethanes produced by marine microalgae are probably important in the global cycling of gaseous organohalogen species, especially bromine and iodine. From the viewpoint of stratospheric ozone depletion, methyl bromide is the most destructive compound because it has a high ozone depletion potential | Pavlova gyrans | ? | - |
? | |
| additional information | no activity with chloride, no activity with L-methionine, S-methyl methionine or dimethylsulfoniopropionate | Pavlova gyrans | ? | - |
? | |
| S-adenosyl-L-methionine + bromide | - |
Pavlova gyrans | S-adenosyl-L-homocysteine + methyl bromide | - |
? | |
| S-adenosyl-L-methionine + iodide | - |
Pavlova gyrans | S-adenosyl-L-homocysteine + methyl iodide | - |
? | |
| S-adenosyl-L-methionine + iodide | - |
Papenfussiella kuromo | S-adenosyl-L-homocysteine + methyl iodide | - |
? | |
| S-adenosyl-L-methionine + iodide | - |
Sargassum horneri | S-adenosyl-L-homocysteine + methyl iodide | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| SAM:halide ion methyltransferase | - |
Pavlova gyrans |
| SAM:halide ion methyltransferase | - |
Papenfussiella kuromo |
| SAM:halide ion methyltransferase | - |
Sargassum horneri |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 30 | - |
assay at | Pavlova gyrans |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 7 | 7.5 | - |
Pavlova gyrans |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 6 | 8 | about 60% of maximal activity at pH 6.0 and 8.0 | Pavlova gyrans |
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