EC Number   |
Protein Variants |
Reference |
|---|
    6.6.1.1 | A942V |
the (gun5) mutation abolishes activity of Mg-chelatase subunit H. Increasing the ChlH concentration up to 0.02 mM restores approximately 50% activity in the presence of the gun5 mutation. The addition of Gun4 restores Mg-chelatase activity of the gun5 mutant enzyme |
715033 |
| 6.6.1.1 | D207N |
altered restriction enzyme site, no measurable magnesium chelatase activity, ATPase activity not affected |
644261 |
| 6.6.1.1 | D207N |
BchI mutant forms a complex with wild-type BchD. Mutant shows 7.2% of wild-type ATPase activity. Mutant is deficient of magnesium chelatase activity |
727954 |
| 6.6.1.1 | DELTAN159ChlH |
the mutant retains the ability to bind protoporphyrin and the Gun4 enhancer protein, although the addition of I and D subunits yields an extremely impaired active enzyme complex |
747024 |
| 6.6.1.1 | E152Q |
mutation in the AAA+ domain of ChlD binds to ChlI. Mutant shows low activity but assembles into complexes much like wild-type. Mutant shows 25% of wild-type activity. kcat/K0.5 for Mg2+ is 30% of wild-type. kcat and Km for deuteroporphyrin are reduced to the same extent |
727959 |
| 6.6.1.1 | E424 |
deletion mutant (3bp) named xantha-f.10, no magnesium chelatase activity |
710311 |
| 6.6.1.1 | K49A |
mutation in the AAA+ domain of ChlD binds to ChlI. Mutant shows no activity. Mutant forms detecable amount of ChlID complexes |
727959 |
| 6.6.1.1 | L111F |
altered restriction enzyme site, no measurable magnesium chelatase activity, ATPase activity not affected |
644261 |
| 6.6.1.1 | L111F |
BchI mutant forms a complex with wild-type BchD. Mutant shows 5.5% of wild-type ATPase activity. Mutant is deficient of magnesium chelatase activity |
727954 |
| 6.6.1.1 | L348F |
named abar-2, altered abscisic acid-related phenotypes in seed germination and postgermination growth but not in stomatal movement |
710312 |
