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Literature summary for 3.5.1.B15 extracted from
- The combinatorial effects of osmolytes and alcohols on the stability of pyrazinamidase methanol affects the enzyme stability through hydrophobic interactions and hydrogen bonds (2018), Int. J. Biol. Macromol., 108, 1339-1347 .
Cloned(Commentary)
| Cloned (Comment) | Organism |
|---|---|
| gene pncA, recombinant expression of His-tagged enzyme in Escherichia coli strain BL21(DE3) | Mycobacterium tuberculosis |
General Stability
| General Stability | Organism |
|---|---|
| stability and structure of recombinant pyrazinamidase (PZase) from Mycobacterium tuberculosis in alcohols, i.e. methanol, ethanol, isopropanol and n-propanol, are analyzed in the presence of absence of stabilizing osmolytes, sorbitol, sucrose and glycerol, overview. Methanol destabilizes, while glacerol stabilizes the enzyme. A decrease in the tertiary structure of the enzyme is less in the presence of ethanol, compared to the solutions of other alcohols. These results indicate that methanol, isopropanol and n-propanol decrease the tertiary structure of PZase in a similar manner | Mycobacterium tuberculosis |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| pyrazinamide + H2O | Mycobacterium tuberculosis | - |
pyrazinoic acid + NH3 | - |
? |  |
| pyrazinamide + H2O | Mycobacterium tuberculosis H37Rv | - |
pyrazinoic acid + NH3 | - |
? | |
| pyrazinamide + H2O | Mycobacterium tuberculosis ATCC 25618 | - |
pyrazinoic acid + NH3 | - |
? | |
Organic Solvent Stability
| Organic Solvent | Comment | Organism |
|---|---|---|
| Methanol | can interact with PZase via hydrophobic interactions and hydrogen bonds resulting in destabilization of the structure of the enzyme. Glycerol probably increases the stability of the enzyme in methanol by disrupting the unfavorable hydrophobic interactions and hydrogen bonds | Mycobacterium tuberculosis |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Mycobacterium tuberculosis | I6XD65 | - |
- |
| Mycobacterium tuberculosis ATCC 25618 | I6XD65 | - |
- |
| Mycobacterium tuberculosis H37Rv | I6XD65 | - |
- |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
| recombinant His-tagged enzyme from Escherichia coli strain BL21(DE3) by nickel affinity chromatography | Mycobacterium tuberculosis |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| pyrazinamide + H2O | - |
Mycobacterium tuberculosis | pyrazinoic acid + NH3 | - |
? | |
| pyrazinamide + H2O | - |
Mycobacterium tuberculosis H37Rv | pyrazinoic acid + NH3 | - |
? | |
| pyrazinamide + H2O | - |
Mycobacterium tuberculosis ATCC 25618 | pyrazinoic acid + NH3 | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| PZAse | - |
Mycobacterium tuberculosis |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 37 | - |
assay at | Mycobacterium tuberculosis |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 7.5 | - |
assay at | Mycobacterium tuberculosis |
General Information
| General Information | Comment | Organism |
|---|---|---|
| additional information | stability and structure of recombinant pyrazinamidase (PZase) from Mycobacterium tuberculosis are analyzed in the presence of stabilizing osmolytes sorbitol, sucrose and glycerol, and alcohols methanol, ethanol, isopropanol and n-propanol, overview | Mycobacterium tuberculosis |
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