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Literature summary for 3.1.7.2 extracted from

  • Richter, D.; Fehr, S.; Harder, R.
    The guanosine 3,5-bis(diphosphate) (ppGpp) cycle. Comparison of synthesis and degradation of guanosine 3,5-bis(diphosphate) in various bacterial systems (1979), Eur. J. Biochem., 99, 57-64.
    View publication on PubMed

Localization

Localization Comment Organism GeneOntology No. Textmining
ribosome
-
Brevibacillus brevis 5840
-
ribosome
-
Bacillus subtilis 5840
-
ribosome
-
Escherichia coli 5840
-
ribosome
-
Geobacillus stearothermophilus 5840
-

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ activation Bacillus subtilis
Co2+ activation Bacillus subtilis
K+ activation Escherichia coli
Mg2+ activation Bacillus subtilis
Mn2+ required Escherichia coli
Mn2+ activation Bacillus subtilis
Mn2+ activation Escherichia coli
NH4+ activation Escherichia coli

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
65000
-
sucrose density gradient centrifugation Bacillus subtilis
65000
-
sucrose density gradient centrifugation Escherichia coli
65000
-
sucrose density gradient centrifugation Geobacillus stearothermophilus
130000
-
dimeric enzyme form, gel filtration Escherichia coli
260000
-
tetrameric enzyme form, gel filtration Escherichia coli

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
ppGpp + H2O Brevibacillus brevis
-
ppG + diphosphate
-
?
ppGpp + H2O Bacillus subtilis
-
ppG + diphosphate
-
?
ppGpp + H2O Escherichia coli
-
ppG + diphosphate
-
?
ppGpp + H2O Geobacillus stearothermophilus
-
ppG + diphosphate
-
?

Organism

Organism UniProt Comment Textmining
Bacillus subtilis
-
-
-
Brevibacillus brevis
-
-
-
Escherichia coli
-
-
-
Geobacillus stearothermophilus
-
-
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ppGpp + H2O
-
Brevibacillus brevis ppG + diphosphate
-
?
ppGpp + H2O
-
Bacillus subtilis ppG + diphosphate
-
?
ppGpp + H2O
-
Escherichia coli ppG + diphosphate
-
?
ppGpp + H2O
-
Geobacillus stearothermophilus ppG + diphosphate
-
?
ppGpp + H2O i.e. guanosine-3',5'-bis(diphosphate) Brevibacillus brevis ppG + diphosphate i.e. guanosine 5'-diphosphate ?
ppGpp + H2O i.e. guanosine-3',5'-bis(diphosphate) Bacillus subtilis ppG + diphosphate i.e. guanosine 5'-diphosphate ?
ppGpp + H2O i.e. guanosine-3',5'-bis(diphosphate) Escherichia coli ppG + diphosphate i.e. guanosine 5'-diphosphate ?
ppGpp + H2O i.e. guanosine-3',5'-bis(diphosphate) Geobacillus stearothermophilus ppG + diphosphate i.e. guanosine 5'-diphosphate ?