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Literature summary for 3.4.21.83 extracted from

  • Morty, R.E.; Shih, A.Y.; Fulop, V.; Andrews, N.W.
    Identification of the reactive cysteine residues in oligopeptidase B from Trypanosoma brucei (2005), FEBS Lett., 579, 2191-2196.
    View publication on PubMed

Protein Variants

Protein Variants Comment Organism
C256S 750fold reduction in inhibition rate constant for iodoacetic acid and more than 100fold reduction in inhibition rate constant for NEM compared to wild-type enzyme Trypanosoma brucei

Inhibitors

Inhibitors Comment Organism Structure
iodoacetamide
-
Trypanosoma brucei
NEM Cys256 is the reactive cysteine residue that mediates OpdB inhibition. Cys256 adducts occlude the P1 substrate-binding site, preventing substrate binding Trypanosoma brucei

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
80000
-
x * 80000, SDS-PAGE under reducing and non-reducing conditions Trypanosoma brucei

Organism

Organism UniProt Comment Textmining
Trypanosoma brucei
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
N-benzyloxycarbonyl-Arg-Arg-4-methylcoumaryl-7-amide + H2O
-
Trypanosoma brucei ?
-
?

Subunits

Subunits Comment Organism
? x * 80000, SDS-PAGE under reducing and non-reducing conditions Trypanosoma brucei