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Literature summary extracted from

  • Haeusler, P.A.; Dieter, L.; Rittle, K.J.; Shepler, L.S.; Paszkowski, A.L.; Moe, O.A.
    Catalytic properties of Escherichia coli polyphosphate kinase: an enzyme for ATP regeneration (1992), Biotechnol. Appl. Biochem., 15, 125-133.
    View publication on PubMed

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.7.4.1 Ca2+ 1 mM, 10% inhibition Escherichia coli
2.7.4.1 Co2+ 1 mM, 40% inhibition Escherichia coli
2.7.4.1 Cu2+ 0.1 mM, 92% inhibition, 1 mM, complete inhibition Escherichia coli
2.7.4.1 Mn2+ weak inhibition at 10 mM Mg2+ Escherichia coli
2.7.4.1 Zn2+ 0.1 mM, 67% inhibition, 1 mM, complete inhibition Escherichia coli

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.7.4.1 0.072
-
ADP pH 5.5, 25°C Escherichia coli
2.7.4.1 0.18
-
ADP pH 6.5-8.5, 25°C Escherichia coli

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
2.7.4.1 Co2+ 1.5-2.5fold lower activation than with Mg2+, inhibitory with Mg2+ as activator Escherichia coli
2.7.4.1 Mg2+ activation Escherichia coli
2.7.4.1 Mg2+ maximal activity at 10 mM Escherichia coli
2.7.4.1 Mn2+ activation, can replace Mg2+ Escherichia coli
2.7.4.1 Mn2+ 1.5-2.5fold lower activation than with Mg2+ Escherichia coli
2.7.4.1 additional information not activated by Ca2+ Escherichia coli

Organism

EC Number Organism UniProt Comment Textmining
2.7.4.1 Escherichia coli
-
-
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.7.4.1 partial purification Escherichia coli

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.7.4.1 ADP + (phosphate)n+1
-
Escherichia coli ATP + (phosphate)n
-
r
2.7.4.1 ATP + (phosphate)n best substrates are polyphosphates with more than 132 residues Escherichia coli ADP + (phosphate)n+1
-
r
2.7.4.1 ATP + (phosphate)n no activity with phosphates of 5 residues or below Escherichia coli ADP + (phosphate)n+1
-
r

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
2.7.4.1 25
-
assay at Escherichia coli

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.7.4.1 7.2
-
-
Escherichia coli

pH Range

EC Number pH Minimum pH Maximum Comment Organism
2.7.4.1 5.5 8.5 approx. 19% of maximal activity at pH 5.5 and pH 8.5 Escherichia coli