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Literature summary for 3.1.3.48 extracted from

  • Okada, M.; Owada, K.; Nakagawa, H.
    [Phosphotyrosine]protein phosphatase in rat brain. A major [phosphotyrosine]protein phosphatase is a 23 kDa protein distinct from acid phosphatase (1986), Biochem. J., 239, 155-162.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
EDTA activation Rattus norvegicus

Inhibitors

Inhibitors Comment Organism Structure
H3VO4
-
Rattus norvegicus
Mg2+
-
Rattus norvegicus
Zn2+
-
Rattus norvegicus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2
-
4-nitrophenyl phosphate
-
Rattus norvegicus
2
-
phosphotyrosine
-
Rattus norvegicus

Metals/Ions

Metals/Ions Comment Organism Structure
additional information activity not dependent on divalent cations Rattus norvegicus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
23000
-
gel filtration Rattus norvegicus

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Rattus norvegicus

Source Tissue

Source Tissue Comment Organism Textmining
brain
-
Rattus norvegicus
-

Storage Stability

Storage Stability Organism
0°C, highly purified preparation, complete loss of activity after 1 week Rattus norvegicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4-nitrophenyl phosphate + H2O
-
Rattus norvegicus 4-nitrophenol + phosphate
-
?
phosphotyrosine + H2O
-
Rattus norvegicus tyrosine + phosphate
-
?

Subunits

Subunits Comment Organism
monomer 1 * 23000, SDS-PAGE Rattus norvegicus

Synonyms

Synonyms Comment Organism
PTPase
-
Rattus norvegicus
PTPPase
-
Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5 5.5
-
Rattus norvegicus

pH Range

pH Minimum pH Maximum Comment Organism
4.5 7
-
Rattus norvegicus