Inhibitors | Comment | Organism | Structure |
---|---|---|---|
CaCl2 | 50 mM, 5-10% inhibition, no inhibition up to 1 mM | Loligo vulgaris | |
CdCl2 | 50 mM, 5-10% inhibition, no inhibition up to 1 mM | Loligo vulgaris | |
additional information | not inhibitory are 1 mM of MnCl2, MgCl2, ZnCl2, CuCl2 or 100 mM of NaCl, KCl, Na2SO4 or 50 mM of EDTA, guanidine chloride or 3 M of urea | Loligo vulgaris | |
Pb(CH3COO)2 | 50 mM, 5-10% inhibition, no inhibition up to 1 mM | Loligo vulgaris |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
2.5 | - |
L-Ala-D-Ala | - |
Loligo vulgaris | |
2.8 | - |
L-Ala-L-Ala | - |
Loligo vulgaris | |
5.2 | - |
Gly-D-Ala | - |
Loligo vulgaris | |
5.4 | - |
D-Leu-D-Leu | - |
Loligo vulgaris | |
7.7 | - |
Gly-L-Ala | - |
Loligo vulgaris | |
8.6 | - |
L-Leu-L-Leu | - |
Loligo vulgaris |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
34000 | - |
1 * 106000 + 1 * 34000, SDS-PAGE | Loligo vulgaris |
106000 | - |
1 * 106000 + 1 * 34000, SDS-PAGE | Loligo vulgaris |
140000 | - |
gel filtration | Loligo vulgaris |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
D-amino acid peptide + H2O | Loligo vulgaris | involved in breakdown of D-amino acid peptides which are present in nervous system of cephalopods | ? | - |
? | |
D-amino acid peptide + H2O | Octopus vulgaris | involved in breakdown of D-amino acid peptides which are present in nervous system of cephalopods | ? | - |
? | |
D-amino acid peptide + H2O | Sepia officinalis | involved in breakdown of D-amino acid peptides which are present in nervous system of cephalopods | ? | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Loligo vulgaris | - |
- |
- |
Octopus vulgaris | - |
- |
- |
Sepia officinalis | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Loligo vulgaris |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
cecum | highest activity in digestive juice | Loligo vulgaris | - |
cecum | cecum | Loligo vulgaris | - |
cecum | cecum | Octopus vulgaris | - |
cecum | cecum | Sepia officinalis | - |
hepatopancreas | - |
Loligo vulgaris | - |
hepatopancreas | - |
Octopus vulgaris | - |
hepatopancreas | - |
Sepia officinalis | - |
kidney | - |
Loligo vulgaris | - |
kidney | - |
Octopus vulgaris | - |
kidney | - |
Sepia officinalis | - |
nervous system | - |
Loligo vulgaris | - |
nervous system | - |
Octopus vulgaris | - |
nervous system | - |
Sepia officinalis | - |
salivary gland | posterior | Loligo vulgaris | - |
salivary gland | posterior | Octopus vulgaris | - |
salivary gland | posterior | Sepia officinalis | - |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
23.3 | - |
substrate Gly-D-Ala | Loligo vulgaris |
Storage Stability | Organism |
---|---|
-20°C, 0.05 M phosphate buffer, pH 7.0, 50% glycerol, 6 months, little loss of activity | Loligo vulgaris |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
D-Ala-D-Ala + H2O | 3-20% hydrolysis, depending on reaction time | Loligo vulgaris | D-Ala + D-Ala | - |
? | |
D-Ala-Gly + H2O | 15-100% hydrolysis, depending on reaction time | Loligo vulgaris | D-Ala + Gly | - |
? | |
D-Ala-L-Ala + H2O | 1-10% hydrolysis, depending on reaction time | Loligo vulgaris | D-Ala + L-Ala | - |
? | |
D-amino acid peptide + H2O | involved in breakdown of D-amino acid peptides which are present in nervous system of cephalopods | Loligo vulgaris | ? | - |
? | |
D-amino acid peptide + H2O | involved in breakdown of D-amino acid peptides which are present in nervous system of cephalopods | Octopus vulgaris | ? | - |
? | |
D-amino acid peptide + H2O | involved in breakdown of D-amino acid peptides which are present in nervous system of cephalopods | Sepia officinalis | ? | - |
? | |
D-Leu-D-Leu + H2O | 75-100% hydrolysis, depending on reaction time | Loligo vulgaris | D-Leu + D-Leu | - |
? | |
D-Leu-Gly-Gly + H2O | 30-100% hydrolysis, depending on reaction time | Loligo vulgaris | D-Leu + Gly-Gly | - |
? | |
D-Leu-Leu + H2O | 70-100% hydrolysis, depending on reaction time | Loligo vulgaris | D-Leu + Leu | - |
? | |
Gly-D-Ala + H2O | 80-100% hydrolysis, depending on reaction time | Loligo vulgaris | Gly + D-Ala | - |
? | |
Gly-D-Asp + H2O | 30-100% hydrolysis, depending on reaction time | Loligo vulgaris | Gly + D-Asp | - |
? | |
Gly-D-Leu + H2O | 90-100% hydrolysis, depending on reaction time | Loligo vulgaris | Gly + D-Leu | - |
? | |
Gly-D-Phe + H2O | 10-50% hydrolysis, depending on reaction time | Loligo vulgaris | Gly + D-Phe | - |
? | |
Gly-D-Ser + H2O | 30-100% hydrolysis, depending on reaction time | Loligo vulgaris | Gly + D-Ser | - |
? | |
Gly-Gly-D-Leu + H2O | 2-20% hydrolysis, depending on reaction time | Loligo vulgaris | Gly-Gly + D-Leu | - |
? | |
Gly-L-Ala + H2O | - |
Loligo vulgaris | Gly + L-Ala | - |
? | |
L-Ala-D-Ala + H2O | 100% hydrolysis | Loligo vulgaris | L-Ala + Ala | - |
? | |
L-Ala-L-Ala + H2O | - |
Loligo vulgaris | L-Ala + L-Ala | - |
? | |
L-Leu-D-Leu + H2O | 2-15% hydrolysis, depending on reaction time | Loligo vulgaris | Leu + D-Leu | - |
? | |
L-Leu-L-Leu + H2O | - |
Loligo vulgaris | L-Leu + L-Leu | - |
? | |
L-Tyr-D-Ala-Gly-L-Phe-L-Met-NH2 + H2O | 4-40% hydrolysis, depending on reaction time | Loligo vulgaris | L-Tyr + D-Ala-Gly-L-Phe-L-Met-NH2 | - |
? | |
L-Tyr-D-Arg + H2O | 2-20% hydrolysis, depending on reaction time | Loligo vulgaris | L-Tyr + D-Arg | - |
? | |
additional information | also hydrolysis of L-peptides and enkephalins, no hydrolysis of peptides with substituted amino-terminus | Loligo vulgaris | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
dimer | 1 * 106000 + 1 * 34000, SDS-PAGE | Loligo vulgaris |
More | amino acid analysis: high contributions of Asp, Glu, Gly, Val | Loligo vulgaris |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
37 | - |
assay at | Loligo vulgaris |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
20 | - |
pH 8.0, stable for 5 days | Loligo vulgaris |
50 | - |
pH 8.0, 5 min, 50% loss of activity | Loligo vulgaris |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
8 | - |
- |
Loligo vulgaris |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
7.2 | 8.8 | - |
Loligo vulgaris |