EC Number |
Protein Variants |
Reference |
---|
2.1.1.184 | E128A |
kcat/KM for S-adenosyl-L-methionine is 46% of wild type value. kcat/KM for RNA is 59% of wild type value. No difference in generating erythromycin resistance when compared to the wild-type enzyme |
-, 662611 |
2.1.1.184 | E202A |
mutant of a residues positioned on the surface of the small domain, does not display substantial defects in activity compared with the wild-type enzyme. kcat/Km for S-adenosyl-L-methionine is 32% of the wild-type value. kcat/Km for RNA is 40% of wild-type value |
-, 705957 |
2.1.1.184 | F163A |
kcat/KM for S-adenosyl-L-methionine is 67% of wild type value. kcat/KM for RNA is 28% of wild type value. Mutant enzyme still mediates erythromycin resistance, although at reduced level |
662611 |
2.1.1.184 | K133A |
decreased ability in rendering DH5alpha cells resistant to erythromycin, suggesting that this amino acid is not absolutely indispensable for the ErmC' activity, but might be involved in important RNA-protein interactions. No change in affinity towards the RNA substrate. kcat/Km for S-adenosyl-L-methionine is% of the wild-type value. kcat/Km for RNA is 27% of wild-type value. kcat/Km for S-adenosyl-L-methionine is 13% of the wild-type value. kcat/Km for RNA is% of wild-type value |
-, 705957 |
2.1.1.184 | K166A |
kcat/KM for S-adenosyl-L-methionine is 74% of wild type value. kcat/KM for RNA is 58% of wild type value. Little difference in generating erythromycin resistance when compared to the wild-type enzyme |
662611 |
2.1.1.184 | K168A |
kcat/KM for S-adenosyl-L-methionine is 59% of wild type value. kcat/KM for RNA is 70% of wild type value. No difference in generating erythromycin resistance when compared to the wild-type enzyme |
-, 662611 |
2.1.1.184 | K197A |
mutant of a residues positioned on the surface of the small domain, does not display substantial defects in activity compared with the wild-type enzyme. kcat/Km for S-adenosyl-L-methionine is 67% of the wild-type value. kcat/Km for RNA is 50% of wild-type value |
-, 705957 |
2.1.1.184 | K197A/N200A/E202A/K204A/K205A |
the five mutations together do not show a visible cumulative effect on the ErmC' activity in vivo |
705957 |
2.1.1.184 | K204A |
mutant of a residues positioned on the surface of the small domain, does not display substantial defects in activity compared with the wild-type enzyme. kcat/Km for S-adenosyl-L-methionine is 73% of the wild-type value. kcat/Km for RNA is 89% of wild-type value |
705957 |
2.1.1.184 | K205A |
mutant of a residues positioned on the surface of the small domain, does not display substantial defects in activity compared with the wild-type enzyme. kcat/Km for S-adenosyl-L-methionine is 63% of the wild-type value. kcat/Km for RNA is 92% of wild-type value |
705957 |