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Literature summary for 3.4.22.7 extracted from

  • Lynn K.R.; Brockbank, W.J.; Clevette, N.A.
    Multiple forms of the asclepains. Cysteinyl proteases from milkweed (1980), Biochim. Biophys. Acta, 612, 119-125.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0097
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain A5 Asclepias syriaca
0.0105
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain A2 Asclepias syriaca
0.0114
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain A1 Asclepias syriaca
0.0122
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain A4 Asclepias syriaca
0.0126
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain B3 Asclepias syriaca
0.0142
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain A3 Asclepias syriaca
0.0248
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain B1 Asclepias syriaca
0.027
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain B4 Asclepias syriaca
0.0272
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain B5 Asclepias syriaca
0.0389
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain B2 Asclepias syriaca

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
21000
-
x * 21000, asclepain A, SDS-PAGE Asclepias syriaca
23000
-
x * 23000, asclepain B, SDS-PAGE Asclepias syriaca

Organism

Organism UniProt Comment Textmining
Asclepias syriaca
-
asclepain A1, A2, A3, A4, A5, and asclepain B1, B2, B3, B4 and B5
-

Source Tissue

Source Tissue Comment Organism Textmining
latex
-
Asclepias syriaca
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
N-carbobenzoxy-Lys p-nitrophenyl ester + H2O
-
Asclepias syriaca N-carbobenzoxy-Lys + 4-nitrophenol
-
?
Phe-Val-Asn-Ala-His-Leu-CysA-Gly-Ser-His-Leu-Val-Glu-Ala-Leu-Tyr-Leu-Val-CysA-Gly-Glu-Arg-Gly-Phe-Phe-Tyr-Thr-Pro-Lys-Ala + H2O
-
Asclepias syriaca Phe-Val-Asn + Ser-His-Leu-Val-Glu-Ala-Leu + Leu-Val-Glu-Ala-Leu-Tyr-Leu-Val-CysA-Gly-Glu + Glu-Arg-Gly-Phe-Phe-Tyr-Thr-Pro-Lys-Ala + Gly-Phe-Phe-Tyr-Thr-Pro-Lys-Ala + Gly-Phe-Phe-Tyr-Thr 14% Phe-Val-Asn + 22% Ser-His-Leu-Val-Glu-Ala-Leu + 15% Leu-Val-Glu-Ala-Leu-Tyr-Leu-Val-CysA-Gly-Glu + 10% Glu-Arg-Gly-Phe-Phe-Tyr-Thr-Pro-Lys-Ala + 10% Gly-Phe-Phe-Tyr-Thr-Pro-Lys-Ala + 13% Gly-Phe-Phe-Tyr-Thr ?

Subunits

Subunits Comment Organism
? x * 21000, asclepain A, SDS-PAGE Asclepias syriaca
? x * 23000, asclepain B, SDS-PAGE Asclepias syriaca

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
22.3
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain A5 Asclepias syriaca
25.8
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain B3 Asclepias syriaca
33.8
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain B4 Asclepias syriaca
34.6
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain B1 Asclepias syriaca
42.9
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain A3 Asclepias syriaca
46.2
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain A2 Asclepias syriaca
47.6
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain B5 Asclepias syriaca
49.2
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain B2 Asclepias syriaca
54.7
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain A1 Asclepias syriaca
59.6
-
N-carbobenzoxy-Lys p-nitrophenyl ester asclepain A4 Asclepias syriaca