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Literature summary for 3.4.22.34 extracted from

  • Yamane, T.; Takeuchi, K.; Yamamoto, Y.; Li, Y.H.; Fujiwara, M.; Nishi, K.; Takahashi, S.; Ohkubo, I.
    Legumain from bovine kidney: its purification, molecular clonin, immunohistochemical localization and degradation of annexin II and vitamin D-binding protein (2002), Biochim. Biophys. Acta, 1596, 108-120.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
DNA and amino acid sequence determination and analysis Bos taurus

General Stability

General Stability Organism
2-mercaptoethanol is essentially required for stability Bos taurus
enzyme is resitant to freezing and thawing Bos taurus

Inhibitors

Inhibitors Comment Organism Structure
Cd2+
-
Bos taurus
Cu2+ strong inhibition Bos taurus
cystatin C
-
Bos taurus
Hg2+ strong inhibition Bos taurus
High-molecular mass kininogen kinin-free, F1.2-free Bos taurus
low molecular mass kininogen
-
Bos taurus
additional information no inhibition by E-64, leupeptin, and elastatinal Bos taurus
N-ethylmaleimide
-
Bos taurus
p-chloromercuribenzene-sulfonic acid
-
Bos taurus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.05
-
benzyloxycarbonyl-Ile-Ser-Asn-4-methylcoumarin-7-amide pH 5.0, 37°C Bos taurus
0.67
-
benzyloxycarbonyl-Ala-Ala-Asn-4-methylcoumarin-7-amide pH 5.0, 37°C Bos taurus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
31000
-
gel filtration Bos taurus
34000
-
1 * 34000, reducing SDS-PAGE Bos taurus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
annexin II + H2O Bos taurus cleavage of the N-terminus, enzyme plays a role in inactivation and degradation of annexin II in endosomes and lysosomes ?
-
?
serum albumin + H2O Bos taurus
-
?
-
?
transferrin + H2O Bos taurus
-
?
-
?
vitamin D-binding protein + H2O Bos taurus enzyme is involved in the processing of mcromolecules absorbed by proximal tubule cells ?
-
?
ZN-alpha2-glycoprotein + H2O Bos taurus
-
?
-
?

Organism

Organism UniProt Comment Textmining
Bos taurus Q95M12
-
-

Purification (Commentary)

Purification (Comment) Organism
1045fold to homogeneity from kidney Bos taurus

Source Tissue

Source Tissue Comment Organism Textmining
kidney cortex Bos taurus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
1.53
-
purified enzyme Bos taurus

Storage Stability

Storage Stability Organism
4°C, 50 mM sodium citrate-buffered saline, pH 5.0, 2 mM 2-mercaptoethanol, a few weeks, stable Bos taurus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
annexin II + H2O cleavage of the N-terminus, enzyme plays a role in inactivation and degradation of annexin II in endosomes and lysosomes Bos taurus ?
-
?
benzyloxycarbonyl-Ala-Ala-Asn-4-methylcoumarin-7-amide + H2O
-
Bos taurus benzyloxycarbonyl-Ala-Ala-Asn + 7-amino-4-methylcoumarin
-
?
benzyloxycarbonyl-Ile-Ser-Asn-4-methylcoumarin-7-amide + H2O low activity with Bos taurus benzyloxycarbonyl-Ile-Ser-Asn + 7-amino-4-methylcoumarin
-
?
GSVKAYTNFDAERD + H2O synthetic peptide, residues24-37, derived from the N-terminal sequence of bovine annexin II, cleavage at position N31-F32 Bos taurus GSVKAYTN + FDAERD
-
?
additional information substrate specificity, no activity with acetyl-Asp-Glu-Val-Asp-4-methylcoumarin-7-amide, and acetyl-Tyr-Val-Ala-Asp-4-methylcoumarin-7-amide Bos taurus ?
-
?
serum albumin + H2O
-
Bos taurus ?
-
?
transferrin + H2O
-
Bos taurus ?
-
?
vitamin D-binding protein + H2O cleavage sites are, besides others, N150-Y151, and N83-S84 Bos taurus ?
-
?
vitamin D-binding protein + H2O enzyme is involved in the processing of mcromolecules absorbed by proximal tubule cells Bos taurus ?
-
?
ZN-alpha2-glycoprotein + H2O
-
Bos taurus ?
-
?

Subunits

Subunits Comment Organism
monomer 1 * 34000, reducing SDS-PAGE Bos taurus

Synonyms

Synonyms Comment Organism
Asparaginyl endopeptidase
-
Bos taurus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
37
-
assay at Bos taurus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
45
-
10 min, stable up to Bos taurus

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
0.1
-
benzyloxycarbonyl-Ile-Ser-Asn-4-methylcoumarin-7-amide pH 5.0, 37°C Bos taurus
17.9
-
benzyloxycarbonyl-Ala-Ala-Asn-4-methylcoumarin-7-amide pH 5.0, 37°C Bos taurus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5
-
assay at Bos taurus

pH Range

pH Minimum pH Maximum Comment Organism
4 6
-
Bos taurus