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Literature summary for 3.4.14.5 extracted from

  • Mineyama, R.; Saito, K.
    Purification and characterization of dipeptidyl peptidase IV from Streptococcus salivarius HHT (1991), Microbios, 68, 37-52.
    View publication on PubMed

General Stability

General Stability Organism
treatment with chymotrypsin, trypsin, protease from Streptomyces griseus and papain reduce 18-22% of the activity after 22 h after incubation Streptococcus salivarius

Inhibitors

Inhibitors Comment Organism Structure
Cu2+ 1 mM CuSO4, 15% inhibition Streptococcus salivarius
diisopropylfluoride
-
Streptococcus salivarius
L-1-chloro-3-[4-tosylamido]-7-amino-2-heptanone
-
Streptococcus salivarius

Localization

Localization Comment Organism GeneOntology No. Textmining

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
47000
-
2 * 47000, SDS-PAGE Streptococcus salivarius
109000
-
gel filtration Streptococcus salivarius

Organism

Organism UniProt Comment Textmining
Streptococcus salivarius
-
HHT
-
Streptococcus salivarius HHT
-
HHT
-

Purification (Commentary)

Purification (Comment) Organism
-
Streptococcus salivarius

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.28
-
-
Streptococcus salivarius

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
Arg-Pro-4-nitroanilide + H2O 48.6% of the activity with Gly-Pro-4-nitroanilide Streptococcus salivarius Arg-Pro + 4-nitroaniline
-
?
Arg-Pro-4-nitroanilide + H2O 48.6% of the activity with Gly-Pro-4-nitroanilide Streptococcus salivarius HHT Arg-Pro + 4-nitroaniline
-
?
Gly-Pro-4-nitroanilide + H2O
-
Streptococcus salivarius Gly-Pro + 4-nitroaniline
-
?
Gly-Pro-4-nitroanilide + H2O
-
Streptococcus salivarius HHT Gly-Pro + 4-nitroaniline
-
?
Lys-Pro-4-nitroanilide + H2O 48.6% of the activity with Gly-Pro-4-nitroanilide Streptococcus salivarius Lys-Pro + 4-nitroaniline
-
?
Lys-Pro-4-nitroanilide + H2O 48.6% of the activity with Gly-Pro-4-nitroanilide Streptococcus salivarius HHT Lys-Pro + 4-nitroaniline
-
?
additional information specifically hydrolyzes N-terminal X-Pro from X-Pro-4-nitroanilides Streptococcus salivarius ?
-
?
additional information specifically hydrolyzes N-terminal X-Pro from X-Pro-4-nitroanilides Streptococcus salivarius HHT ?
-
?

Subunits

Subunits Comment Organism
dimer 2 * 47000, SDS-PAGE Streptococcus salivarius

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
35 40
-
Streptococcus salivarius

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
30 50 30°C: about 70% of maximal activity, 50°C: about 75% of maximal activity Streptococcus salivarius

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
40
-
relatively stable below Streptococcus salivarius
55
-
15 min, about 95% loss of activity Streptococcus salivarius

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
8.7
-
-
Streptococcus salivarius