Literature summary for 3.2.1.17 extracted from
Xue, Q.; Schey, K.L.; Volety, A.K.; Chu, F.E.; La Peyre, J.F.
Purification and characterization of lysozyme from plasma of the eastern oyster (Crassostrea irginica) (2004), Comp. Biochem. Physiol. B, 139B, 11-25.
No PubMed abstract available
Metals/Ions
Metals/Ions |
Comment |
Organism |
Structure |
CaCl2 |
activates, maximal activity at 0.035 M |
Crassostrea virginica |
|
MgCl2 |
activates, maximal activity at 0.035 M |
Crassostrea virginica |
|
NaCl |
activity increases as the NaCl concentration is increased from 0 to 0.1 M and then decreases from its maximum activity at 0.1 M NaCl with further increase in NaCl concentrations |
Crassostrea virginica |
|
Molecular Weight [Da]
Molecular Weight [Da] |
Molecular Weight Maximum [Da] |
Comment |
Organism |
17861 |
- |
x * 17861, MALDI-MS |
Crassostrea virginica |
18400 |
- |
x * 18400, SDS-PAGE |
Crassostrea virginica |
Organism
Organism |
UniProt |
Comment |
Textmining |
Crassostrea virginica |
- |
- |
- |
Purification (Commentary)
Purification (Comment) |
Organism |
- |
Crassostrea virginica |
Source Tissue
Source Tissue |
Comment |
Organism |
Textmining |
hemolymph |
cell-free |
Crassostrea virginica |
- |
Specific Activity [micromol/min/mg]
Specific Activity Minimum [µmol/min/mg] |
Specific Activity Maximum [µmol/min/mg] |
Comment |
Organism |
additional information |
- |
- |
Crassostrea virginica |
Substrates and Products (Substrate)
Substrates |
Comment Substrates |
Organism |
Products |
Comment (Products) |
Rev. |
Reac. |
peptidoglycan + H2O |
enzyme displays lytic activity against Lactococcus garvieae, Enterococcus sp., Vibrio vulnificus and Escherichia coli. The growth of Aeromonas hydrophila is inhibited only at a high concentration of 0.4 mg/ml. No growth inhibition of Streptococcus iniae and Aeromonas hydrophila |
Crassostrea virginica |
? |
- |
? |
|
Subunits
Subunits |
Comment |
Organism |
? |
x * 17771.5, two potential forms of enzyme: 17771.5 Da and 17861 Da, MALDI-MS |
Crassostrea virginica |
? |
x * 17861, MALDI-MS |
Crassostrea virginica |
? |
x * 18400, SDS-PAGE |
Crassostrea virginica |
Temperature Optimum [°C]
Temperature Optimum [°C] |
Temperature Optimum Maximum [°C] |
Comment |
Organism |
40 |
45 |
- |
Crassostrea virginica |
Temperature Range [°C]
Temperature Minimum [°C] |
Temperature Maximum [°C] |
Comment |
Organism |
10 |
60 |
10°C: about 60% of maximal activity, 60°C: about 60% of maximal activity |
Crassostrea virginica |
pH Optimum
pH Optimum Minimum |
pH Optimum Maximum |
Comment |
Organism |
5.5 |
6 |
- |
Crassostrea virginica |
pH Range
pH Minimum |
pH Maximum |
Comment |
Organism |
5 |
7.5 |
60% of maximal activity within the range pH 5.0-7.5 |
Crassostrea virginica |
pH Stability
pH Stability |
pH Stability Maximum |
Comment |
Organism |
2 |
13 |
30 min, stable |
Crassostrea virginica |
pI Value
Organism |
Comment |
pI Value Maximum |
pI Value |
Crassostrea virginica |
greater than 10 |
- |
additional information |