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Literature summary for 3.4.21.42 extracted from

  • Morgan, P.H.; Nair, I.G.
    Hydrolysis of a synthetic amide substrate by human C1 esterase (C1sbar) (1977), J. Immunol., 119, 19-25.
    View publication on PubMed
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KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.36
-
 N-benzoyl-Phe-Val-Arg p-nitroanilide
-
 Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
complement component C2 + H2O
-
 Homo sapiens complement component C2a + complement component C2b
-
 ?
complement component C4 + H2O
-
 Homo sapiens complement component C4a + complement component C4b
-
 ?
N-benzoyl-Phe-Val-Arg p-nitroanilide + H2O
-
 Homo sapiens ?
-
 ?
N-benzyloxycarbonyl-Lys-p-nitrophenyl ester + H2O
-
 Homo sapiens ?
-
 ?
N-benzyloxycarbonyl-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
5.7
-
 N-benzoyl-Phe-Val-Arg p-nitroanilide
-
 Homo sapiens

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.7
-
-
 Homo sapiens

pH Range

pH Minimum pH Maximum Comment Organism
6.5 8.8 pH 6.5: about 60% of maximal activity, pH 8.8: about 75% of maximal activity Homo sapiens