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3.4.22.38: cathepsin K

This is an abbreviated version!
For detailed information about cathepsin K, go to the full flat file.

Word Map on EC 3.4.22.38

Reaction

Broad proteolytic activity. With small-molecule substrates and inhibitors, the major determinant of specificity is P2, which is preferably Leu, Met > Phe, and not Arg =

Synonyms

Cat K, Cat-K, cath K, cathepsin K, cathepsin O, Cathepsin O2, cathepsin-K, catK, Ctk, CTSK, Human osteoclast cathepsin K, More, OC-2 protein, rhCK

ECTree

     3 Hydrolases
         3.4 Acting on peptide bonds (peptidases)
             3.4.22 Cysteine endopeptidases
                3.4.22.38 cathepsin K

KM Value

KM Value on EC 3.4.22.38 - cathepsin K

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KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
0.16
Acetyl-Phe-Arg 4-methylcoumarin 7-amide
-
-
0.51
benzoyl-Arg 4-methylcoumarin 7-amide
-
-
0.34
benzoyl-Phe-Val-Arg 4-methylcoumarin 7-amide
-
-
0.023
benzyloxycarbonyl-Arg-Arg 4-methylcoumarin 7-amide
-
-
0.17
Benzyloxycarbonyl-Glu-Arg 4-methylcoumarin 7-amide
-
-
0.0038 - 0.0083
benzyloxycarbonyl-Leu-Arg 4-methylcoumarin 7-amide
0.0004 - 0.013
Benzyloxycarbonyl-Leu-Leu-Arg 4-methylcoumarin 7-amide
0.0075 - 0.058
Benzyloxycarbonyl-Phe-Arg 4-methylcoumarin 7-amide
0.0051 - 0.021
benzyloxycarbonyl-Phe-Arg-7-amido-4-methylcoumarin
0.0131 - 0.033
Benzyloxycarbonyl-Val-Arg 4-methylcoumarin 7-amide
0.0185 - 0.044
Benzyloxycarbonyl-Val-Val-Arg 4-methylcoumarin 7-amide
0.0032 - 0.0077
benzyloxycarbonyl-Val-Val-Arg-7-amido-4-methylcoumarin
0.0094
carbobenzoxy-Phe-Arg-7-amido-4-methylcoumarin
at pH 5.5 and 37°C
0.005 - 0.293
carbobenzyloxy-Leu-Arg-4-methylcoumaryl-7-amide
0.019 - 0.036
CBZ-Phe-Arg-4-methylcoumarin 7-amide
0.000087
N-[(1S)-2,2,2-trifluoro-1-[4'-(methylsulfonyl)biphenyl-4-yl]ethyl]-L-leucyl-L-alaninamide
-
-
0.000006
N-[(1S)-2,2,2-trifluoro-1-[4'-(methylsulfonyl)biphenyl-4-yl]ethyl]-L-leucyl-L-methioninamide
-
-
0.000119
N-[(1S)-2,2,2-trifluoro-1-[4'-(methylsulfonyl)biphenyl-4-yl]ethyl]-L-leucylglycinamide
-
-
0.28
Pro-Phe-Arg 4-methylcoumarin 7-amide
-
-
0.05
Succinyl-Leu-Tyr 4-methylcoumarin 7-amide
-
-
0.03
tert-butyloxycarbonyl-Val-Leu-Lys 4-methylcoumarin 7-amide
-
-
0.24
tert-butyloxycarbonyl-Val-Pro-Arg 4-methylcoumarin 7-amide
-
-
1.1
tosyl-Gly-Pro-Arg 4-methylcoumarin 7-amide
-
-
0.0034 - 0.048
Z-Gly-Pro-Arg-7-amido-4-methylcoumarin
0.002 - 0.0046
Z-Leu-Arg-7-amido-4-methylcoumarin
0.005
Z-Phe-Arg-7-amido-4-methylcoumarin
at pH 5.5 and 25°C