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Literature summary extracted from

  • Shaw, W.H.; Anderson, J.W.
    Comparative enzymology of the adenosine triphosphate sulphurylases from leaf tissue of selenium-accumulator and non-accumulator plants (1974), Biochem. J., 139, 37-42.
    View publication on PubMedView publication on EuropePMC

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.7.7.4 ADP
-
 Astragalus bisulcatus
2.7.7.4 ADP
-
 Astragalus hamosus
2.7.7.4 ADP
-
 Astragalus racemosus
2.7.7.4 ADP
-
 Astragalus sinicus
2.7.7.4 ClO4-
-
 Astragalus bisulcatus
2.7.7.4 ClO4-
-
 Astragalus hamosus
2.7.7.4 ClO4-
-
 Astragalus racemosus
2.7.7.4 ClO4-
-
 Astragalus sinicus
2.7.7.4 NO3-
-
 Astragalus bisulcatus
2.7.7.4 NO3-
-
 Astragalus hamosus
2.7.7.4 NO3-
-
 Astragalus racemosus
2.7.7.4 NO3-
-
 Astragalus sinicus
2.7.7.4 SeO42-
-
 Astragalus bisulcatus
2.7.7.4 SeO42-
-
 Astragalus hamosus
2.7.7.4 SeO42-
-
 Astragalus racemosus
2.7.7.4 SeO42-
-
 Astragalus sinicus
2.7.7.4 Tris-malic acid-KOH buffer pH 6-8.5 Astragalus bisulcatus
2.7.7.4 Tris-malic acid-KOH buffer pH 6-8.5 Astragalus hamosus
2.7.7.4 Tris-malic acid-KOH buffer pH 6-8.5 Astragalus racemosus
2.7.7.4 Tris-malic acid-KOH buffer pH 6-8.5 Astragalus sinicus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.7.7.4 2.8
-
 SO42- pH 9.0 Astragalus bisulcatus
2.7.7.4 3
-
 SO42- pH 9.0 Astragalus sinicus
2.7.7.4 3
-
 SO42- pH 9.0 Astragalus hamosus
2.7.7.4 3.1
-
 SO42- pH 9.0 Astragalus racemosus

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
2.7.7.4 Mg2+ inactive in presence of Astragalus bisulcatus
2.7.7.4 Mg2+ inactive in presence of Astragalus racemosus
2.7.7.4 Mg2+ inactive in presence of Astragalus sinicus
2.7.7.4 Mg2+ inactive in presence of Astragalus hamosus

Organism

EC Number Organism UniProt Comment Textmining
2.7.7.4 Astragalus bisulcatus
-
-
-
2.7.7.4 Astragalus hamosus
-
-
-
2.7.7.4 Astragalus racemosus
-
-
-
2.7.7.4 Astragalus sinicus
-
-
-

Reaction

EC Number Reaction Comment Organism Reaction ID
2.7.7.4 ATP + sulfate = diphosphate + adenylyl sulfate ordered reaction mechanism, in which ATP is the first substrate to react with the enzyme and diphosphate is the first product released Astragalus bisulcatus
a
2.7.7.4 ATP + sulfate = diphosphate + adenylyl sulfate ordered reaction mechanism, in which ATP is the first substrate to react with the enzyme and diphosphate is the first product released Astragalus racemosus
a
2.7.7.4 ATP + sulfate = diphosphate + adenylyl sulfate ordered reaction mechanism, in which ATP is the first substrate to react with the enzyme and diphosphate is the first product released Astragalus sinicus
a
2.7.7.4 ATP + sulfate = diphosphate + adenylyl sulfate ordered reaction mechanism, in which ATP is the first substrate to react with the enzyme and diphosphate is the first product released Astragalus hamosus
a

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
2.7.7.4 0.0141
-
-
 Astragalus hamosus
2.7.7.4 0.026
-
-
 Astragalus racemosus
2.7.7.4 0.031
-
-
 Astragalus bisulcatus
2.7.7.4 0.0337
-
-
 Astragalus sinicus

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.7.7.4 ATP + sulfate
-
 Astragalus bisulcatus diphosphate + adenylylsulfate
-
 r
2.7.7.4 ATP + sulfate
-
 Astragalus racemosus diphosphate + adenylylsulfate
-
 r
2.7.7.4 ATP + sulfate
-
 Astragalus sinicus diphosphate + adenylylsulfate
-
 r
2.7.7.4 ATP + sulfate
-
 Astragalus hamosus diphosphate + adenylylsulfate
-
 r

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
2.7.7.4 9
-
-
 Astragalus bisulcatus
2.7.7.4 9
-
-
 Astragalus racemosus
2.7.7.4 9
-
-
 Astragalus sinicus
2.7.7.4 9
-
-
 Astragalus hamosus