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Literature summary for 1.8.1.2 extracted from
- Studies on yeast sulfite reductase. IV. Structure and steady-state kinetics (1982), Biochim. Biophys. Acta, 705, 348-356.
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| NADP+ | competitive to NADPH, noncompetitive to sulfite | Saccharomyces cerevisiae |  |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.01 | - |
NADPH | - |
Saccharomyces cerevisiae | |
| 0.012 | 0.017 | sulfite | - |
Saccharomyces cerevisiae | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 116000 | - |
alpha2,beta2, 2 * 116000 + 2 * 167000, SDS-PAGE | Saccharomyces cerevisiae |
| 167000 | - |
alpha2,beta2, 2 * 116000 + 2 * 167000, SDS-PAGE | Saccharomyces cerevisiae |
| 604000 | - |
gel filtration | Saccharomyces cerevisiae |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Saccharomyces cerevisiae | - |
- |
- |
Reaction
| Reaction | Comment | Organism | Reaction ID |
|---|---|---|---|
| hydrogen sulfide + 3 NADP+ + 3 H2O = sulfite + 3 NADPH + 3 H+ | ping-pong mechanism | Saccharomyces cerevisiae |
Subunits
| Subunits | Comment | Organism |
|---|---|---|
| tetramer | alpha2,beta2, 2 * 116000 + 2 * 167000, SDS-PAGE | Saccharomyces cerevisiae |
Cofactor
| Cofactor | Comment | Organism | Structure |
|---|---|---|---|
| flavin | 2 FAD and 2 FMN per mol of enzyme | Saccharomyces cerevisiae | |
| heme | - |
Saccharomyces cerevisiae | |
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