EC Number   |
Protein Variants |
Reference |
|---|
   3.4.24.40 | M226A |
using a resorufin-casein assay proteolytic activity decreases in the following order: M226 higher than M226L higher than M226I higher than M226H higher than M226A. The levels of secreted protein decrease in the same order, indicating some defect in synthesis and secretion or stability of the mutants |
707612 |
| 3.4.24.40 | M226A/E189A |
introduction of additional E189A mutation leads to a complete enzymatic inactivation since catalytic base is knocked out. This helps in purification and crystallization. Replacement of the methionine side chain results in an increasing distortion of the zinc-binding geometry, especially pronounced in the lambda2 angles of the first and third histidine of the consensus sequence. This is correlated with an increasing loss of proteolytic activity and a sharp increase of flexibility of large segments of the polypeptide chain |
707612 |
| 3.4.24.40 | M226H |
mutant could not be purified, using a resorufin-casein assay proteolytic activity decreases in the following order: M226 higher than M226L higher than M226I higher than M226H higher than M226A. The levels of secreted protein decrease in the same order, indicating some defect in synthesis and secretion or stability of the mutants |
707612 |
| 3.4.24.40 | M226H/E189A |
introduction of additional E189A mutation leads to a complete enzymatic inactivation since catalytic base is knocked out. This helps in purification and crystallization. Replacement of the methionine side chain results in an increasing distortion of the zinc-binding geometry, especially pronounced in the lambda2 angles of the first and third histidine of the consensus sequence. This is correlated with an increasing loss of proteolytic activity and a sharp increase of flexibility of large segments of the polypeptide chain |
707612 |
| 3.4.24.40 | M226I |
M226I possesses 50% of wild-type activity, using a resorufin-casein assay proteolytic activity decreases in the following order: M226 higher than M226L higher than M226I higher than M226H higher than M226A. The levels of secreted protein decrease in the same order, indicating some defect in synthesis and secretion or stability of the mutants |
707612 |
| 3.4.24.40 | M226I/E189A |
introduction of additional E189A mutation leads to a complete enzymatic inactivation since catalytic base is knocked out. This helps in purification and crystallization. Replacement of the methionine side chain results in an increasing distortion of the zinc-binding geometry, especially pronounced in the lambda2 angles of the first and third histidine of the consensus sequence. This is correlated with an increasing loss of proteolytic activity and a sharp increase of flexibility of large segments of the polypeptide chain |
707612 |
| 3.4.24.40 | M226L |
M226L possesses 85% of wild-type activity, using a resorufin-casein assay proteolytic activity decreases in the following order: M226 higher than M226L higher than M226I higher than M226H higher than M226A. The levels of secreted protein decrease in the same order, indicating some defect in synthesis and secretion or stability of the mutants |
707612 |
| 3.4.24.40 | M226L/E189A |
introduction of additional E189A mutation leads to a complete enzymatic inactivation since catalytic base is knocked out. This helps in purification and crystallization. Replacement of the methionine side chain results in an increasing distortion of the zinc-binding geometry, especially pronounced in the lambda2 angles of the first and third histidine of the consensus sequence. This is correlated with an increasing loss of proteolytic activity and a sharp increase of flexibility of large segments of the polypeptide chain |
707612 |
| 3.4.24.40 | M226N |
mutant could not be purified |
707612 |
| 3.4.24.40 | M226N/E189A |
introduction of additional E189A mutation leads to a complete enzymatic inactivation since catalytic base is knocked out. This helps in purification and crystallization. Replacement of the methionine side chain results in an increasing distortion of the zinc-binding geometry, especially pronounced in the lambda2 angles of the first and third histidine of the consensus sequence. This is correlated with an increasing loss of proteolytic activity and a sharp increase of flexibility of large segments of the polypeptide chain |
707612 |
