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Native Flavobacterium sp. Proline specific endopeptidase

Cat No.
DIA-213
Description
Prolyl endopeptidase (PE) also known as prolyl oligopeptidase or post-proline cleaving enzyme is an enzyme that in humans is encoded by the PREP gene.
Abbr
PE (Flavobacterium sp.)
Alias
PE
Source
Flavobacterium sp.
Applications
This enzyme is useful for the determination of amino acid sequences of peptides and proteins containing proline residues.
Appearance
White amorphous powder, lyophilized
Enzyme Commission Number
EC 3.4.21.26
Activity
GradeⅠ 5.0U/mg-solid or more
CAS No.
72162-84-6
Contaminants
Leucine aminopeptidase < 1.0×10⁻¹% Trypsin-like activity < 1.0×10⁻¹%
Molecular Weight
approx. 78 kDa
Isoelectric point
9.1
pH Stability
5.5-8.5 (30°C,15hr)
Michaelis Constant
2.5×10⁻⁵M (Z-Gly-Pro-MCA), 1.4×10⁻⁴M (Z-Gly-Pro-2NNap)
Structure
Monomer
Specificity
Y-Pro(Ala)-X (Y, peptide or N-protected amino acid; X, amino acid, peptide, amide, or ester)
Optimum pH
6.5
Optimum temperature
37°C (40°C)
Thermal stability
below 40°C (pH 7.0,10 min)
Stability
Stable at-20°C
Inhibitors
DFP, 3, 4-dichloroisocoumarin, Z-Gly-Pro-CH₂Cl
Synonyms
EC 3.4.21.26; post-proline cleaving enzyme; proline-specific endopeptidase; post-proline endopeptidase; proline endopeptidase; endoprolylpeptidase; prolyl endopeptidase; prolyl oligopeptidase; PE
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CatalogEXWM-4124
EC No.EC 3.4.21.26
CAS No.72162-84-6
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