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Literature summary for 4.1.1.50 extracted from
- S-Adenosylmethionine decarboxylase of corn seedlings (1980), Plant Physiol., 66, 1091-1094.
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| 2,2'-Dihydroxy-6,6'-dinaphthyl disulfide | - |
Zea mays |  |
| 5,5'-dithiobis(2-nitrobenzoate) | - |
Zea mays | |
| methylglyoxal bis(guanylhydrazone) | - |
Zea mays | |
| NEM | - |
Zea mays | |
| p-hydroxymercuribenzoate | - |
Zea mays | |
| p-Hydroxymercuriphenylsulfonate | - |
Zea mays | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.005 | - |
S-adenosyl-L-methionine | - |
Zea mays | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 25000 | - |
gel filtration | Zea mays |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| S-adenosyl-L-methionine | Zea mays | EC 4.1.1.50 and EC 2.5.1.16 appear to function in sequence in animals and microorganisms in the synthesis of spermidine | ? | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Zea mays | - |
- |
- |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
- |
Zea mays |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| seedling | germination is accompanied by a rapid increase in enzyme activity and maximal activity occurs in 5-day-old seedlings | Zea mays | - |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| additional information | - |
- |
Zea mays |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| S-adenosyl-L-methionine | - |
Zea mays | (5-deoxy-5-adenosyl)(3-aminopropyl)methylsulfonium salt + CO2 | - |
? | |
| S-adenosyl-L-methionine | EC 4.1.1.50 and EC 2.5.1.16 appear to function in sequence in animals and microorganisms in the synthesis of spermidine | Zea mays | ? | - |
? | |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 8.6 | - |
- |
Zea mays |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 7.2 | 9.5 | pH 7.2: about 45% of maximal activity, pH 9.5: about 65% of maximal activity | Zea mays |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 4 | - |
5°C, 3 days, complete loss of activity | Zea mays |
| 7 | 8 | 5°C, 3 days, stable | Zea mays |
| 9 | - |
5°C, 3 days, complete loss of activity | Zea mays |
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Release 2023.1 (January 2023)
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