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Literature summary extracted from

  • Krajewska, B.
    Ureases I. Functional, catalytic and kinetic properties: A review (2009), J. Mol. Catal. B, 59, 9-21.
No PubMed abstract available

Application

EC Number Application Comment Organism
3.5.1.5 medicine the action of urease in the upper intestinal tract is exploited in a non-invasive urease breath test for the diagnosis of bacterial infections of Helicobacter pylori: 13C- or 14C-labelled urea is ingested, and if the bacterium is present in the stomach, the urea is converted into isotope-labelled carbon dioxide. This is absorbed into the blood and exhaled in the breath, where it is detected by mass spectrometer or scintillation counter Helicobacter pylori

Crystallization (Commentary)

EC Number Crystallization (Comment) Organism
3.5.1.5 crystal structure determined at 2.0 A Sporosarcina pasteurii
3.5.1.5 crystal structure determined at 2.2 A Klebsiella aerogenes

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.5.1.5 0.11
-
Urea pH 8.4, temperature not specified in the publication Otala lactea
3.5.1.5 0.2
-
Urea range Km: 0.2-0.8 mM, pH 8.0, temperature not specified in the publication Helicobacter pylori
3.5.1.5 1.03
-
Urea pH 8.2, temperature not specified in the publication Schizosaccharomyces pombe
3.5.1.5 1.33
-
Urea pH 8.5, temperature not specified in the publication Aspergillus nidulans
3.5.1.5 1.66
-
Urea pH and temperature not specified in the publication Staphylococcus leei
3.5.1.5 2
-
Urea pH 4.5, temperature not specified in the publication Streptococcus mitior
3.5.1.5 2.2
-
Urea pH 8, temperature not specified in the publication Selenomonas ruminantium
3.5.1.5 2.5
-
Urea pH 6.9, temperature not specified in the publication Ureaplasma urealyticum
3.5.1.5 2.7
-
Urea pH 2, temperature not specified in the publication Limosilactobacillus fermentum
3.5.1.5 2.8
-
Urea pH 7.0, 37°C Klebsiella aerogenes
3.5.1.5 2.8
-
Urea pH 2, temperature not specified in the publication Limosilactobacillus reuteri
3.5.1.5 2.8
-
Urea pH 7.5, temperature not specified in the publication Klebsiella aerogenes
3.5.1.5 2.8
-
Urea pH 7.75, temperature not specified in the publication Klebsiella aerogenes
3.5.1.5 2.9
-
Urea pH 7.0, 38°C Canavalia ensiformis
3.5.1.5 3
-
Urea pH 8.0, temperature not specified in the publication Aspergillus niger
3.5.1.5 3
-
Urea pH 4.2, temperature not specified in the publication Arthrobacter mobilis
3.5.1.5 3
-
Urea pH 7.3, temperature not specified in the publication Cajanus cajan
3.5.1.5 4.1
-
Urea pH 8.0, temperature not specified in the publication Coccidioides immitis
3.5.1.5 4.5
-
Urea pH and temperature not specified in the publication Nitellopsis obtusa
3.5.1.5 5.6
-
Urea pH 7.0, temperature not specified in the publication Brucella suis
3.5.1.5 9.3
-
Urea pH and temperature not specified in the publication Providencia stuartii
3.5.1.5 9.5
-
Urea pH 6, temperature not specified in the publication Staphylococcus saprophyticus
3.5.1.5 10.5
-
Urea pH 7.5, temperature not specified in the publication Providencia rettgeri
3.5.1.5 12.5
-
Urea pH 7.6, temperature not specified in the publication Pseudarthrobacter oxydans
3.5.1.5 13
-
Urea pH 7.5, temperature not specified in the publication Proteus mirabilis
3.5.1.5 17.3
-
Urea pH 8.0, temperature not specified in the publication Sporosarcina pasteurii
3.5.1.5 32
-
Urea pH 7.0, temperature not specified in the publication Corynebacterium ammoniagenes

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
3.5.1.5 Ni2+ required for activity Canavalia ensiformis

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.5.1.5 11000
-
1 * 61000 + 1 * 11000 + 1 * 14000 composed of three distinct subunits (one large (61 kDa) and two small (11 kDa and 14 kDa)), commonly forming (alpha beta gamma)3 trimers Sporosarcina pasteurii
3.5.1.5 11100
-
gamma subunit, method not specified Klebsiella aerogenes
3.5.1.5 11100
-
gamma subunit, method not specified Sporosarcina pasteurii
3.5.1.5 11700
-
beta subunit, method not specified Klebsiella aerogenes
3.5.1.5 12000
-
gamma subunit, method not specified Staphylococcus leei
3.5.1.5 14000
-
beta subunit, method not specified Sporosarcina pasteurii
3.5.1.5 20400
-
beta subunit, method not specified Staphylococcus saprophyticus
3.5.1.5 21000
-
beta subunit, method not specified Staphylococcus leei
3.5.1.5 26500
-
beta subunit, method not specified Helicobacter pylori
3.5.1.5 60300
-
alpha subunit, method not specified Klebsiella aerogenes
3.5.1.5 61000
-
alpha subunit, method not specified Helicobacter pylori
3.5.1.5 61000
-
1 * 61000 + 1 * 11000 + 1 * 14000 composed of three distinct subunits (one large (61 kDa) and two small (11 kDa and 14 kDa)), commonly forming (alpha beta gamma)3 trimers Sporosarcina pasteurii
3.5.1.5 61400
-
alpha subunit, method not specified Sporosarcina pasteurii
3.5.1.5 65000
-
alpha subunit, method not specified Staphylococcus leei
3.5.1.5 72400
-
alpha subunit, method not specified Staphylococcus saprophyticus
3.5.1.5 90770
-
alpha subunit of jack bean urease without Ni2+, method not specified Canavalia ensiformis
3.5.1.5 113900
-
gamma subunit, method not specified Staphylococcus saprophyticus
3.5.1.5 545300
-
hexamer with 12 nickel ions included, method not specified Canavalia ensiformis
3.5.1.5 590000
-
hexamer with 12 nickel ions included, sedimentation method Canavalia ensiformis

Organism

EC Number Organism UniProt Comment Textmining
3.5.1.5 Arthrobacter mobilis
-
-
-
3.5.1.5 Aspergillus nidulans
-
-
-
3.5.1.5 Aspergillus niger
-
-
-
3.5.1.5 Brucella suis
-
-
-
3.5.1.5 Cajanus cajan
-
-
-
3.5.1.5 Canavalia ensiformis
-
-
-
3.5.1.5 Coccidioides immitis
-
-
-
3.5.1.5 Corynebacterium ammoniagenes
-
-
-
3.5.1.5 Helicobacter pylori
-
-
-
3.5.1.5 Klebsiella
-
-
-
3.5.1.5 Klebsiella aerogenes
-
-
-
3.5.1.5 Limosilactobacillus fermentum
-
-
-
3.5.1.5 Limosilactobacillus reuteri
-
-
-
3.5.1.5 Nitellopsis obtusa
-
-
-
3.5.1.5 Otala lactea
-
-
-
3.5.1.5 Proteus mirabilis
-
-
-
3.5.1.5 Providencia rettgeri
-
-
-
3.5.1.5 Providencia stuartii
-
-
-
3.5.1.5 Pseudarthrobacter oxydans
-
-
-
3.5.1.5 Pseudomonas
-
-
-
3.5.1.5 Schizosaccharomyces pombe
-
-
-
3.5.1.5 Selenomonas ruminantium
-
-
-
3.5.1.5 Sporosarcina pasteurii
-
-
-
3.5.1.5 Staphylococcus leei
-
-
-
3.5.1.5 Staphylococcus saprophyticus
-
-
-
3.5.1.5 Staphylococcus sp.
-
-
-
3.5.1.5 Staphylococcus xylosus
-
-
-
3.5.1.5 Streptococcus mitior
-
-
-
3.5.1.5 Ureaplasma urealyticum
-
-
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.5.1.5 0.79
-
pH 8.4, temperature not specified in the publication Otala lactea
3.5.1.5 60.6
-
pH 7.5, temperature not specified in the publication Providencia rettgeri
3.5.1.5 219
-
pH 7.6, temperature not specified in the publication Pseudarthrobacter oxydans
3.5.1.5 220
-
pH 2, temperature not specified in the publication Limosilactobacillus fermentum
3.5.1.5 230
-
pH 4.5, temperature not specified in the publication Streptococcus mitior
3.5.1.5 290
-
pH 2, temperature not specified in the publication Limosilactobacillus reuteri
3.5.1.5 540
-
pH 7.0, temperature not specified in the publication Brucella suis
3.5.1.5 670
-
pH 8.5, temperature not specified in the publication Aspergillus nidulans
3.5.1.5 690
-
pH 7.5, temperature not specified in the publication Klebsiella aerogenes
3.5.1.5 700
-
pH 8.2, temperature not specified in the publication Schizosaccharomyces pombe
3.5.1.5 730
-
pH and temperature not specified in the publication Staphylococcus leei
3.5.1.5 1100
-
pH 8, temperature not specified in the publication Selenomonas ruminantium
3.5.1.5 1341
-
pH 8.0, temperature not specified in the publication Aspergillus niger
3.5.1.5 1573
-
pH 7.2, temperature not specified in the publication Staphylococcus xylosus
3.5.1.5 1700
-
pH 8.0, temperature not specified Helicobacter pylori
3.5.1.5 1750
-
pH 8.0, temperature not specified in the publication Coccidioides immitis
3.5.1.5 1979
-
pH 6, temperature not specified in the publication Staphylococcus saprophyticus
3.5.1.5 2000
-
pH 7.5, temperature not specified in the publication Proteus mirabilis
3.5.1.5 2370
-
pH 4.2, temperature not specified in the publication Arthrobacter mobilis
3.5.1.5 2500
-
pH 7.75, temperature not specified in the publication Klebsiella aerogenes
3.5.1.5 2500
-
pH 8.0, temperature not specified in the publication Sporosarcina pasteurii
3.5.1.5 3120
-
pH 7.3, temperature not specified in the publication Cajanus cajan
3.5.1.5 3570
-
pH 7.0, temperature not specified in the publication Corynebacterium ammoniagenes
3.5.1.5 7100
-
pH and temperature not specified in the publication Providencia stuartii
3.5.1.5 180000
-
pH 6.9, temperature not specified in the publication Ureaplasma urealyticum

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.5.1.5 urea + H2O
-
Aspergillus nidulans CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Aspergillus niger CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Klebsiella aerogenes CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Proteus mirabilis CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Schizosaccharomyces pombe CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Helicobacter pylori CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Staphylococcus sp. CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Limosilactobacillus fermentum CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Selenomonas ruminantium CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Ureaplasma urealyticum CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Corynebacterium ammoniagenes CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Canavalia ensiformis CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Providencia rettgeri CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Limosilactobacillus reuteri CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Sporosarcina pasteurii CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Streptococcus mitior CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Cajanus cajan CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Providencia stuartii CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Coccidioides immitis CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Pseudarthrobacter oxydans CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Otala lactea CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Staphylococcus saprophyticus CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Staphylococcus xylosus CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Staphylococcus leei CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Brucella suis CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Pseudomonas CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Klebsiella CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Arthrobacter mobilis CO2 + NH3
-
?
3.5.1.5 urea + H2O
-
Nitellopsis obtusa CO2 + NH3
-
?

Subunits

EC Number Subunits Comment Organism
3.5.1.5 dodecamer ((alpha beta)3)4 dodecameric complex, method not specified Helicobacter pylori
3.5.1.5 homodimer method not specified Schizosaccharomyces pombe
3.5.1.5 homohexamer 6 * 90770, without Ni ions, method not specified Canavalia ensiformis
3.5.1.5 trimer (alpha beta gamma)4 trimer, method not specified Staphylococcus saprophyticus
3.5.1.5 trimer (alpha beta gamma)5 trimer. Method not specified Staphylococcus leei
3.5.1.5 trimer 1 * 61000 + 1 * 11000 + 1 * 14000 composed of three distinct subunits (one large (61 kDa) and two small (11 kDa and 14 kDa)), commonly forming (alpha beta gamma)3 trimers Sporosarcina pasteurii
3.5.1.5 trimer composed of three distinct subunits, one large (60 kDa) and two small (11 kDa), commonly forming (alpha beta gamma)3 trimers Klebsiella aerogenes

Synonyms

EC Number Synonyms Comment Organism
3.5.1.5 urease
-
Aspergillus nidulans
3.5.1.5 urease
-
Aspergillus niger
3.5.1.5 urease
-
Klebsiella aerogenes
3.5.1.5 urease
-
Proteus mirabilis
3.5.1.5 urease
-
Schizosaccharomyces pombe
3.5.1.5 urease
-
Helicobacter pylori
3.5.1.5 urease
-
Staphylococcus sp.
3.5.1.5 urease
-
Limosilactobacillus fermentum
3.5.1.5 urease
-
Selenomonas ruminantium
3.5.1.5 urease
-
Ureaplasma urealyticum
3.5.1.5 urease
-
Corynebacterium ammoniagenes
3.5.1.5 urease
-
Canavalia ensiformis
3.5.1.5 urease
-
Providencia rettgeri
3.5.1.5 urease
-
Limosilactobacillus reuteri
3.5.1.5 urease
-
Sporosarcina pasteurii
3.5.1.5 urease
-
Streptococcus mitior
3.5.1.5 urease
-
Cajanus cajan
3.5.1.5 urease
-
Providencia stuartii
3.5.1.5 urease
-
Coccidioides immitis
3.5.1.5 urease
-
Pseudarthrobacter oxydans
3.5.1.5 urease
-
Otala lactea
3.5.1.5 urease
-
Staphylococcus saprophyticus
3.5.1.5 urease
-
Staphylococcus xylosus
3.5.1.5 urease
-
Staphylococcus leei
3.5.1.5 urease
-
Brucella suis
3.5.1.5 urease
-
Pseudomonas
3.5.1.5 urease
-
Klebsiella
3.5.1.5 urease
-
Arthrobacter mobilis
3.5.1.5 urease
-
Nitellopsis obtusa

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
3.5.1.5 37
-
assay at Klebsiella aerogenes
3.5.1.5 38
-
assay at Canavalia ensiformis

Turnover Number [1/s]

EC Number Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
3.5.1.5 3500
-
Urea pH 7.0, 37°C Klebsiella aerogenes
3.5.1.5 5913
-
Urea pH 7.0, 38°C Canavalia ensiformis

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
3.5.1.5 2
-
-
Limosilactobacillus fermentum
3.5.1.5 2
-
-
Limosilactobacillus reuteri
3.5.1.5 4.2
-
-
Arthrobacter mobilis
3.5.1.5 4.5
-
-
Streptococcus mitior
3.5.1.5 6
-
-
Staphylococcus saprophyticus
3.5.1.5 7
-
-
Corynebacterium ammoniagenes
3.5.1.5 7
-
-
Brucella suis
3.5.1.5 7
-
assay at Klebsiella aerogenes
3.5.1.5 7
-
assay at Canavalia ensiformis
3.5.1.5 7.2
-
-
Staphylococcus xylosus
3.5.1.5 7.3
-
-
Cajanus cajan
3.5.1.5 7.5
-
-
Klebsiella aerogenes
3.5.1.5 7.5
-
-
Proteus mirabilis
3.5.1.5 7.5
-
-
Providencia rettgeri
3.5.1.5 7.6
-
-
Pseudarthrobacter oxydans
3.5.1.5 7.75
-
-
Klebsiella aerogenes
3.5.1.5 8
-
-
Aspergillus niger
3.5.1.5 8
-
-
Helicobacter pylori
3.5.1.5 8
-
-
Selenomonas ruminantium
3.5.1.5 8
-
-
Sporosarcina pasteurii
3.5.1.5 8
-
-
Coccidioides immitis
3.5.1.5 8.2
-
-
Schizosaccharomyces pombe
3.5.1.5 8.5
-
-
Aspergillus nidulans

pH Range

EC Number pH Minimum pH Maximum Comment Organism
3.5.1.5 6.9 7.5 optimal activity Ureaplasma urealyticum
3.5.1.5 8.4 9 optimal activity Otala lactea

pH Stability

EC Number pH Stability pH Stability Maximum Comment Organism
3.5.1.5 5
-
irreversibly inactivated below pH 5 Helicobacter pylori

General Information

EC Number General Information Comment Organism
3.5.1.5 physiological function the bacterium typically colonizes the mucosal lining of the stomach, where the increase in pH of the strongly acidic environment allows the bacterium that requires pH 6-8 to grow, to persist in the hostile conditions. Concomitantly it incurs damage to the host tissue, thereby giving rise to gastritis and gastroduodenal ulcers. The damaging factors are ammonia and monochloramine Helicobacter pylori
3.5.1.5 physiological function ureolytic bacterium responsible for the formation of urinary stones in human Proteus mirabilis
3.5.1.5 physiological function ureolytic bacterium responsible for the formation of urinary stones in human Staphylococcus sp.
3.5.1.5 physiological function ureolytic bacterium responsible for the formation of urinary stones in human Ureaplasma urealyticum
3.5.1.5 physiological function ureolytic bacterium responsible for the formation of urinary stones in human Pseudomonas
3.5.1.5 physiological function ureolytic bacterium responsible for the formation of urinary stones in human Klebsiella

kcat/KM [mM/s]

EC Number kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
3.5.1.5 1250
-
Urea pH 7.0, 37°C Klebsiella aerogenes
3.5.1.5 2000
-
Urea pH 7.0, 38°C Canavalia ensiformis