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Literature summary for 7.2.1.3 extracted from

  • Scherer, G.; Weis, W.
    Partial purification of L-ascorbate:ferricytochrome b5 oxidoreductase from rat liver microsomes (1977), Hoppe-Seyler's Z. Physiol. Chem., 358, S.1499-1503.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
asolectin lipid micelles increases activity about 2fold Rattus norvegicus
lecithin lipid micelles increases activity about 2fold Rattus norvegicus

General Stability

General Stability Organism
enzymes loses its activity during isoelectric focusing Rattus norvegicus

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane
-
Rattus norvegicus 16020
-
microsome
-
Rattus norvegicus
-
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-(+)-ascorbate + ferricytochrome b5 Rattus norvegicus
-
monodehydro-L(+)-ascorbate + ferrocytochrome b5
-
?

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
rat, Wistar AF/Han
-

Purification (Commentary)

Purification (Comment) Organism
partial Rattus norvegicus

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Rattus norvegicus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
6.5
-
microsomes after CM-cellulose-chromatography, ultrafiltration and dialysis P2 Rattus norvegicus

Storage Stability

Storage Stability Organism
0°C, enzymatic activity tolerates ampholine over a 24 h period Rattus norvegicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-(+)-ascorbate + ferricytochrome b5
-
Rattus norvegicus monodehydro-L(+)-ascorbate + ferrocytochrome b5
-
?
L-ascorbate + ferricytochrome b5
-
Rattus norvegicus monodehydro-L-ascorbate + ferrocytochrome b5
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.9
-
enriched enzyme Rattus norvegicus
7.2 7.4 in microsomes Rattus norvegicus