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Literature summary for 2.7.3.8 extracted from

  • Dowler, M.J.; Nakada, H.I.
    Yeast phosphoramidate-adenosine diphosphate phosphotransferase (1968), J. Biol. Chem., 243, 1434-1440.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
Fe2+ 1.67 mM, 48% inhibition Saccharomyces cerevisiae
Hg2+ 0.083 mM, 76% inhibition Saccharomyces cerevisiae
iodoacetate 1.67 mM, 12% inhibition Saccharomyces cerevisiae
Mg2+ 133 mM, complete inhibition, inhibits reaction with phosphormaide or phosphoiodohistidine Saccharomyces cerevisiae
Mn2+ 1.67 mM, 49% inhibition Saccharomyces cerevisiae
NEM 1.67 mM, 44% inhibition Saccharomyces cerevisiae
oligomycin 0.267 mM, 42% inhibition Saccharomyces cerevisiae
p-chloromercuribenzoate 0.83 mM, 95% inhibition Saccharomyces cerevisiae
PO43- 1.67 mM, 26% inhibition Saccharomyces cerevisiae
Sodium arsenate 1.67 mM, 65% inhibition Saccharomyces cerevisiae
Sodium azide 0.267 mM, 42% inhibition Saccharomyces cerevisiae

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.115
-
ADP pH 7.2 Saccharomyces cerevisiae
0.139
-
phosphoramide pH 7.2 Saccharomyces cerevisiae

Organism

Organism UniProt Comment Textmining
Saccharomyces cerevisiae
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Saccharomyces cerevisiae

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Saccharomyces cerevisiae

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP + phosphoiodohistidine L-isomer and DL-racemate of phosphoiodohistidine Saccharomyces cerevisiae ATP + iodohistidine
-
?
ADP + phosphoramide
-
Saccharomyces cerevisiae ATP + NH3
-
?
CDP + phosphoramide
-
Saccharomyces cerevisiae CTP + NH3
-
?
dADP + phosphoramide
-
Saccharomyces cerevisiae dATP + NH3
-
?
dCDP + phosphoramide
-
Saccharomyces cerevisiae dCTP + NH3
-
?
GDP + phosphoramide
-
Saccharomyces cerevisiae GTP + NH3
-
?
IDP + phosphoramide
-
Saccharomyces cerevisiae ITP + NH3
-
?
TDP + phosphoramide
-
Saccharomyces cerevisiae TTP + NH3
-
?
UDP + phosphoramide
-
Saccharomyces cerevisiae UTP + NH3
-
?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
35
-
10 min, denaturation above Saccharomyces cerevisiae

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.9
-
reaction with phosphoiodohistidine, double pH maximum with peaks at 6.0 and 7.8 Saccharomyces cerevisiae
7 7.2 reaction with phosphoramide Saccharomyces cerevisiae
7.8
-
reaction with phosphoiodohistidine, double pH maximum with peaks at 6.0 and 7.8 Saccharomyces cerevisiae

pH Range

pH Minimum pH Maximum Comment Organism
6 8 pH 6.0: about 60% of maximal activity, pH 8.0: about 70% of maximal activity, reaction with phosphoramide Saccharomyces cerevisiae
6.5 8.5 pH 6.5: about 50% of maximal activity, pH 8.5: about 40% of maximal activity, reaction with phosphoiodohistidine Saccharomyces cerevisiae