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Literature summary for 2.7.7.4 extracted from

  • Li, J.; Saidha, T.; Schiff, J.A.
    Purification and properties of two forms of ATP sulfurylase from Euglena (1991), Biochim. Biophys. Acta, 1078, 68-76.
    View publication on PubMed

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.001
-
diphosphate pH 8.8, enzyme form ATPSm Euglena gracilis
1
-
diphosphate pH 8.8, enzyme form ATPSc Euglena gracilis

Localization

Localization Comment Organism GeneOntology No. Textmining
mitochondrial membrane enzyme form ATPSm is mainly associated with mitochondrial membrane Euglena gracilis 31966
-
soluble enzyme form ATPSc Euglena gracilis
-
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
52300
-
1 * 52300, enzyme form ATPSc, SDS-PAGE Euglena gracilis
55000
-
1 * 55000, enzyme form ATPSm, SDS-PAGE Euglena gracilis
66000
-
enzyme ATPSm and ATPSc, gel filtration Euglena gracilis

Organism

Organism UniProt Comment Textmining
Euglena gracilis
-
Klebs var. bacillaris Cori, aplastidic mutant W10BSmL
-

Purification (Commentary)

Purification (Comment) Organism
enzyme form ATPSm and ATPSc Euglena gracilis

Source Tissue

Source Tissue Comment Organism Textmining

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
205.2
-
enzyme form ATPSc Euglena gracilis
237.7
-
enzyme form ATPSm Euglena gracilis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ATP + sulfate
-
Euglena gracilis diphosphate + adenylylsulfate
-
r

Subunits

Subunits Comment Organism
monomer 1 * 52300, enzyme form ATPSc, SDS-PAGE Euglena gracilis
monomer 1 * 55000, enzyme form ATPSm, SDS-PAGE Euglena gracilis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.3
-
enzyme form ATPSc, incorporation of SO42- Euglena gracilis
8.8
-
and a second but lower optimum at pH 7.3, enzyme form ATPSm, incorporation of SO42- Euglena gracilis

pH Range

pH Minimum pH Maximum Comment Organism
7 7.9 pH 7.0: about 70% of maximal activity, pH 7.0: about 65% of maximal activity, enzyme form ATPSc, incorporation of SO42- Euglena gracilis

pI Value

Organism Comment pI Value Maximum pI Value
Euglena gracilis isoelectric focusing, enzyme form ATPSm
-
5.8
Euglena gracilis isoelectric focusing, enzyme form ATPSc
-
7.9