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Literature summary extracted from

  • Park, H.S.C.; van Etten, R.L.
    Purification and characterization of homogeneous sunflower seed acid phosphatase (1986), Phytochemistry, 25, 351-357.
No PubMed abstract available

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
3.1.3.2 0.029
-
 p-nitrophenyl phosphate enzyme form I Helianthus annuus
3.1.3.2 0.098
-
 p-nitrophenyl phosphate enzyme form II Helianthus annuus

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
3.1.3.2 52000
-
 x * 52000, enzyme form II, SDS-PAGE Helianthus annuus
3.1.3.2 56000
-
 x * 56000, enzyme form I, SDS-PAGE Helianthus annuus
3.1.3.2 103000
-
 enzyme form I and II, gel filtration Helianthus annuus

Organism

EC Number Organism UniProt Comment Textmining
3.1.3.2 Helianthus annuus
-
-
-

Posttranslational Modification

EC Number Posttranslational Modification Comment Organism
3.1.3.2 glycoprotein
-
 Helianthus annuus

Purification (Commentary)

EC Number Purification (Comment) Organism
3.1.3.2 mixture of two enzyme forms Helianthus annuus

Source Tissue

EC Number Source Tissue Comment Organism Textmining
3.1.3.2 seed
-
 Helianthus annuus
-

Specific Activity [micromol/min/mg]

EC Number Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.1.3.2 additional information
-
-
 Helianthus annuus

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3.1.3.2 1-naphthyl phosphate + H2O
-
 Helianthus annuus 1-naphthol + phosphate
-
 ?
3.1.3.2 2-glycerophosphate + H2O
-
 Helianthus annuus glycerol + phosphate
-
 ?
3.1.3.2 2-naphthyl phosphate + H2O
-
 Helianthus annuus 2-naphthol + phosphate
-
 ?
3.1.3.2 3'-AMP + H2O
-
 Helianthus annuus adenosine + phosphate
-
 ?
3.1.3.2 5'-AMP + H2O
-
 Helianthus annuus adenosine + phosphate
-
 ?
3.1.3.2 alpha-glycerophosphate + H2O
-
 Helianthus annuus glycerol + phosphate
-
 ?
3.1.3.2 ATP + H2O no activity Helianthus annuus ADP + phosphate
-
 ?
3.1.3.2 diphosphate + H2O
-
 Helianthus annuus 2 phosphate
-
 ?
3.1.3.2 Glucose 6-phosphate + H2O
-
 Helianthus annuus Glucose + phosphate
-
 ?
3.1.3.2 NADP+ + H2O
-
 Helianthus annuus NAD+ + phosphate
-
 ?
3.1.3.2 o-carboxyphenyl phosphoric acid + H2O
-
 Helianthus annuus o-carboxyphenol + phosphate
-
 ?
3.1.3.2 O-phosphoethanolamine + H2O
-
 Helianthus annuus ethanolamine + phosphate
-
 ?
3.1.3.2 O-phosphoserine + H2O
-
 Helianthus annuus Ser + phosphate
-
 ?
3.1.3.2 p-nitrophenyl phosphate + H2O
-
 Helianthus annuus p-nitrophenol + phosphate
-
 ?
3.1.3.2 phenolphthalein monophosphate + H2O
-
 Helianthus annuus phenolphthalein + phosphate
-
 ?
3.1.3.2 phenyl phosphate + H2O
-
 Helianthus annuus phenol + phosphate
-
 ?
3.1.3.2 phosphopyruvate + H2O
-
 Helianthus annuus pyruvate + phosphate
-
 ?
3.1.3.2 thymolphthalein monophosphate + H2O
-
 Helianthus annuus thymolphthalein + phosphate
-
 ?

Subunits

EC Number Subunits Comment Organism
3.1.3.2 ? x * 56000, enzyme form I, SDS-PAGE Helianthus annuus
3.1.3.2 ? x * 52000, enzyme form II, SDS-PAGE Helianthus annuus