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Literature summary for 2.5.1.96 extracted from
- Evolution of a pathway to novel long-chain carotenoids (2004), J. Bacteriol., 186, 1531-1536.
Cloned(Commentary)
| Cloned (Comment) | Organism |
|---|---|
- |
Staphylococcus aureus |
Protein Variants
| Protein Variants | Comment | Organism |
|---|---|---|
| A726G, A850G | mutant with phytoene synthase activity, decrease in dehydrosqualene synthase activity | Staphylococcus aureus |
| F26L | mutation is sufficient to gain phytoene synthase activity, decrease in dehydrosqualene synthase activity | Staphylococcus aureus |
| F26L/E149G | mutant with phytoene synthase activity, decrease in dehydrosqualene synthase activity | Staphylococcus aureus |
| F26L/F267S | mutant with phytoene synthase activity, decrease in dehydrosqualene synthase activity | Staphylococcus aureus |
| F26L/V43M | mutant with phytoene synthase activity, decrease in dehydrosqualene synthase activity | Staphylococcus aureus |
| F26S/I40T | mutant with phytoene synthase activity, decrease in dehydrosqualene synthase activity | Staphylococcus aureus |
| H12R/F26L/D27G/90G/K97R/H207R | mutant with phytoene synthase activity, decrease in dehydrosqualene synthase activity | Staphylococcus aureus |
| K20E/F26S | mutant with phytoene synthase activity, decrease in dehydrosqualene synthase activity | Staphylococcus aureus |
| M4V/H12R/F59S/Q81R/E180G | mutant with phytoene synthase activity, without decrease in dehydrosqualene synthase activity | Staphylococcus aureus |
| additional information | construction of C40 carotenoid synthase pathway in Escherichia coli by expression of crtE encoding GGPP synthase, crtB encoding phytoene synthase, and crtI encoding phytoene desaturase, all from Erwinia uredovora. Replacement of phytoene synthase crtB by dehydrosqualene synthase crtM results in negligible ability to synthesize the C40 product. Some crtM mutants perform comparably to crtB in an in vivo C40 pathway. These mutants show significant variation in performance in their original C30 pathway, indicating the emergence of enzymes with broadened substrate specificity as well as those with shifted specificity | Staphylococcus aureus |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Staphylococcus aureus | - |
- |
- |
| Staphylococcus aureus ATCC 35556 | - |
- |
- |
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