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Literature summary for 3.4.21.42 extracted from

  • Sim, R.B.; Porter, R.R.; Reid, K.B.M.; Gigli, I.
    The structure and enzymic activities of the C1r and C1s subcomponents of C1, the first component of human serum complement (1977), Biochem. J., 163, 219-227.
    View publication on PubMedView publication on EuropePMC
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KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.07
-
 t-butyloxycarbonyl-Tyr p-nitrophenyl ester
-
 Homo sapiens
0.8
-
 N-benzyloxycarbonyl-Lys p-nitrophenyl ester
-
 Homo sapiens

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
81000
-
 gel filtration Homo sapiens
92000
-
 nondenaturing PAGE Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
side-chain modification 7.1% carbohydrate per weight Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
serum
-
 Homo sapiens
-

Storage Stability

Storage Stability Organism
2°C, pH 5.3-7.3, stable over weeks Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
N-benzyloxycarbonyl-Lys-p-nitrophenyl ester + H2O
-
 Homo sapiens ?
-
 ?
tert-butyloxycarbonyl-Lys p-nitrophenyl ester + H2O
-
 Homo sapiens ?
-
 ?
tert-butyloxycarbonyl-Phe p-nitrophenyl ester + H2O
-
 Homo sapiens ?
-
 ?
tert-butyloxycarbonyl-Tyr p-nitrophenyl ester + H2O
-
 Homo sapiens ?
-
 ?

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
0.73
-
 tert-butyloxycarbonyl-Tyr p-nitrophenyl ester
-
 Homo sapiens
20.8
-
 N-benzyloxycarbonyl-Lys p-nitrophenyl ester
-
 Homo sapiens