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Literature summary for 3.4.22.10 extracted from

  • Chella Krishnan, K.; Mukundan, S.; Landero Figueroa, J.A.; Caruso, J.A.; Kotb, M.
    Metal-mediated modulation of streptococcal cysteine protease activity and its biological implications (2014), Infect. Immun., 82, 2992-3001.
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli as a His-tagged fusion protein Streptococcus pyogenes

Inhibitors

Inhibitors Comment Organism Structure
Cu2+ Cu2+ inhibits the proteolytic activity of mature SpeB Streptococcus pyogenes
N-(N-(L-3-trans-carboxyoxirane-2-carbonyl)-L-leucyl)-agmatine
-
Streptococcus pyogenes
Zn2+ Zinc inhibits the proteolytic activity of mature SpeB Streptococcus pyogenes

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
28000
-
mature SpeB Streptococcus pyogenes
42000
-
enzymatically inactive zymogen form of SpeB Streptococcus pyogenes

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
streptococcal mitogenic exotoxin Z + H2O Streptococcus pyogenes
-
?
-
?

Organism

Organism UniProt Comment Textmining
Streptococcus pyogenes
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
proteolytic modification Spe is expressed as a propeptide. Zinc blocks the maturation of the SpeB zymogen and thereby the proteolytic degradation of proteins by SpeB Streptococcus pyogenes

Purification (Commentary)

Purification (Comment) Organism
using Ni-NTA chromatography Streptococcus pyogenes

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
streptococcal mitogenic exotoxin Z + H2O
-
Streptococcus pyogenes ?
-
?

Synonyms

Synonyms Comment Organism
SpeB
-
Streptococcus pyogenes
streptococcal pyrogenic exotoxin B
-
Streptococcus pyogenes
streptopain
-
Streptococcus pyogenes

IC50 Value

IC50 Value IC50 Value Maximum Comment Organism Inhibitor Structure
0.0279
-
pH and temperature not specified in the publication Streptococcus pyogenes Zn2+