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3.4.21.42: complement subcomponent C1s

This is an abbreviated version!
For detailed information about complement subcomponent C1s, go to the full flat file.

Word Map on EC 3.4.21.42

Reaction

Cleavage of Arg-/-Ala bond in complement component C4 to form C4a and C4b, and Lys(or Arg)-/-Lys bond in complement component C2 to form C2a and C2b: the "classical" pathway C3 convertase =

Synonyms

activated complement C1s, C1 esterase, C1-esterase, C1g, C1s, C1s protease, C1s serine protease, complement 1s, complement C.hivin. 1s, complement C1s, complement C1s, activated, complement component 1 s, complement component 1 subcomponent s, complement component C1s, complement protease, complement protease C1s, complement subcomponent 1s, complement subcomponent C1sbar, esterase, C1, mannan-binding lectin-associated serine protease-2, MASP-2, MBL-associated serine protease-2, multiprotein complex C1, protease C1s, serine protease C1s

ECTree

     3 Hydrolases
         3.4 Acting on peptide bonds (peptidases)
             3.4.21 Serine endopeptidases
                3.4.21.42 complement subcomponent C1s

KM Value

KM Value on EC 3.4.21.42 - complement subcomponent C1s

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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.012 - 0.0138
2-aminobenzoyl-GLQRALEI-Lys(dinitrophenol)-NH2
19
acetyl-L-Tyr ethyl ester
-
-
2.5 - 5
benzoyl-Arg ethyl ester
-
-
0.3408
C1-inhibitor P4-P1 fragment
-
pH 7.4, 37°C
-
0.0077
C1-inhibitor P4-P4' fragment
-
pH 7.4, 37°C
-
0.0052 - 0.0061
Complement component C2
-
0.1369
complement component C2 P4-P1 fragment
-
pH 7.4, 37°C
-
0.0274
complement component C2 P4-P4' fragment
-
pH 7.4, 37°C
-
0.000085 - 0.0066
Complement component C4
-
0.3581
complement component C4 P4-P1 fragment
-
pH 7.4, 37°C
-
0.0136
complement component C4 P4-P4' fragment
-
pH 7.4, 37°C
-
0.36
N-benzoyl-Phe-Val-Arg p-nitroanilide
-
-
0.069
N-benzyloxycarbonyl-Gly-Arg thiobenzyl ester
-
-
0.8
N-benzyloxycarbonyl-Lys p-nitrophenyl ester
-
-
0.056 - 0.07
N-benzyloxycarbonyl-Tyr p-nitrophenyl ester
-
-
0.07
t-butyloxycarbonyl-Tyr p-nitrophenyl ester
-
-
1.7 - 2.8
tosyl-Arg methyl ester
-
-
0.0654 - 0.245
Z-AGLQR-7-amido-4-methylcoumarin
0.0762 - 0.212
Z-LGR-7-amido-4-methylcoumarin
additional information
2-[5-Amino-2-(4-fluoro-phenyl)-6-oxo-6H-pyrimidin-1-yl]-N-(1-benzyl-2-oxo-2-thiazol-2-yl-ethyl)-acetamide