Cloned (Comment) | Organism |
---|---|
cloning of the NS3 protease domain (NS3 S1-E171), the active deltaNS2BNS3pro complex (NS3pro domain fused with NS2B M48-A94 and L126-R131 regions), the deltaNS2B-NS3pro HDA complex (with S138A), mutated proteins and chimeric proteases with the NS2B cofactor from Langat virus and Dengue virus type 3 replacing the Alkhurma virus sequence. PCR products cloned into pET-DEST42 vector | Alkhumra hemorrhagic fever virus |
Protein Variants | Comment | Organism |
---|---|---|
deltaV88 | deletion mutant | Alkhumra hemorrhagic fever virus |
G68A | substitution in the NS2B sequence, decreased activity compared with that of the wild-type enzyme | Alkhumra hemorrhagic fever virus |
G81A | substitution in the NS2B sequence, decreased activity compared with that of the wild-type enzyme | Alkhumra hemorrhagic fever virus |
L73A | substitution in the NS2B sequence, decreased activity compared with that of the wild-type enzyme | Alkhumra hemorrhagic fever virus |
Q77A | substitution in the NS2B sequence, mutation has greater effects on substrate binding than on the reaction rate | Alkhumra hemorrhagic fever virus |
S138A | inactive | Alkhumra hemorrhagic fever virus |
V88D | reduced activity compared with that of the wild-type | Alkhumra hemorrhagic fever virus |
V88K | reduced activity compared with that of the wild-type | Alkhumra hemorrhagic fever virus |
W60A | substitution in the NS2B sequence, decreased activity compared with that of the wild-type enzyme | Alkhumra hemorrhagic fever virus |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.3 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant G68A | Alkhumra hemorrhagic fever virus | |
0.3 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant G81A | Alkhumra hemorrhagic fever virus | |
0.4 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant V88D | Alkhumra hemorrhagic fever virus | |
0.4 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant W60A | Alkhumra hemorrhagic fever virus | |
0.6 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | deltaNS2B-NS3pro | Alkhumra hemorrhagic fever virus | |
1.7 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant L73A | Alkhumra hemorrhagic fever virus | |
2.2 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant V88K | Alkhumra hemorrhagic fever virus | |
2.6 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | chimeric proteases with the NS2B cofactor from Langat virus replacing the Alkhurma virus sequence | Alkhumra hemorrhagic fever virus | |
15.9 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant Q77A | Alkhumra hemorrhagic fever virus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Alkhumra hemorrhagic fever virus | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Alkhumra hemorrhagic fever virus |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
N-alpha-benzoyl-L-arginine-p-nitroanilide + H2O | no substrate-dependent precipitation for either Alkhurma virus mutants or chimeric proteins | Alkhumra hemorrhagic fever virus | N-alpha-benzoyl-L-arginine + p-nitroaniline | - |
? |
Synonyms | Comment | Organism |
---|---|---|
NS2B-NS3 protease | - |
Alkhumra hemorrhagic fever virus |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0004 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant V88D | Alkhumra hemorrhagic fever virus | |
0.0006 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant V88K | Alkhumra hemorrhagic fever virus | |
0.0018 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant G81A | Alkhumra hemorrhagic fever virus | |
0.0018 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant W60A | Alkhumra hemorrhagic fever virus | |
0.0051 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | chimeric proteases with the NS2B cofactor from Langat virus replacing the Alkhurma virus sequence | Alkhumra hemorrhagic fever virus | |
0.0058 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant G68A | Alkhumra hemorrhagic fever virus | |
0.008 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant Q77A | Alkhumra hemorrhagic fever virus | |
0.0089 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | mutant L73A | Alkhumra hemorrhagic fever virus | |
0.015 | - |
N-alpha-benzoyl-L-arginine-p-nitroanilide | deltaNS2B-NS3pro | Alkhumra hemorrhagic fever virus |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
additional information | chimeric proteases with the NS2B cofactor from Langat virus and Dengue virus type 3 replacing the Alkhurma virus sequence activate NS3pro | Alkhumra hemorrhagic fever virus | |
NS2B protein | tight complementarity of the protein sequences is necessary for NS2B-dependent activation of NS3. NS2B residues V88 and Q77 are critical for Alkhurma virus NS3 activation. Poor conservation of the NS2B cofactor sequence within members of the genus Flavivirus | Alkhumra hemorrhagic fever virus |