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3.4.22.10: streptopain

This is an abbreviated version!
For detailed information about streptopain, go to the full flat file.

Word Map on EC 3.4.22.10

Reaction

preferential cleavage with hydrophobic residues at P2, P1 and P1' =

Synonyms

EC 3.4.4.18, IdeS, IgG-degrading enzyme of Streptococcus pyogenes, interleukin-1beta convertase, More, proteinase, streptococcal, pyrogenic exotoxin B, SCP, SpcCEP, Spe B, SPE B protease, SPE B/SCP, SpeB, SPP, Steptococcus proteinase, streptococcal cysteine protease, Streptococcal cysteine proteinase, streptococcal erythrogenic toxin B, streptococcal proteinase, streptococcal pyogenic exotoxin B, streptococcal pyrogenic exotoxin B, streptococcal pyrogenic exotoxin B/cysteine protease, Streptococcus peptidase A, Streptococcus protease, streptopain

ECTree

     3 Hydrolases
         3.4 Acting on peptide bonds (peptidases)
             3.4.22 Cysteine endopeptidases
                3.4.22.10 streptopain

Engineering

Engineering on EC 3.4.22.10 - streptopain

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PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
C192S
D9N
-
protease activity (microgram/min/mg) substrate azocasein: 256, substrate proSPE B C47S mutant: 250, compared to wild-type 341 and 378, respectively
G136A
-
protease activity (microgram/min/mg) substrate azocasein: 22.3, substrate proSPE B C47S mutant: 8.1, compared to wild-type 341 and 378, respectively
G163S
-
protease activity (microgram/min/mg) substrate azocasein: 348, substrate proSPE B C47S mutant: 385, compared to wild-type 341 and 378, respectively
G163S/A172S
-
protease activity (microgram/min/mg) substrate azocasein: 286, substrate proSPE B C47S mutant: 236, compared to wild-type 341 and 378, respectively
G239D
-
protease activity (microgram/min/mg) substrate azocasein: 35.3, substrate proSPE B C47S mutant: 20, compared to wild-type 341 and 378, respectively
G308S
-
behaviour is similar to the wild type enzyme
G378A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type
G380A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type
G381A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type
G382A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type
G384A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type
G384D
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) 50% decreased compared to wild-type
G385A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) minimally increased compared to wild-type and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) 3fold increased
T379A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) slightly decreased compared to wild-type
T379V
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) slightly decreased compared to wild-type
V189A
-
protease activity (microgram/min/mg) substrate azocasein: 2.6, substrate proSPE B C47S mutant: 0.9, compared to wild-type 341 and 378, respectively
W212A
-
protease activity (microgram/min/mg) substrate azocasein: 1.2, substrate proSPE B C47S mutant: 0.9, compared to wild-type 341 and 378, respectively
W214A
-
protease activity (microgram/min/mg) substrate azocasein: 0.8, substrate proSPE B C47S mutant: 0.8, compared to wild-type 341 and 378, respectively
C192S
-
inactive mutant
-
G378A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type
-
G380A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type
-
G381A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type
-
G382A
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type
-
G384D
-
Km(acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) decreased compared to wild-type and kcat (acetyl-Ala-Ile-Arg-7-amino-4-methylcoumarin) 50% decreased compared to wild-type
-
C47S
-
site-directed mutagenesis, inactive mutant
-
additional information
-
construction of an isogenic inactive mutant strain M6