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Literature summary for 1.6.2.2 extracted from

  • Shirabe, K.; Yubisui, T.; Takeshita, M.
    Expression of human erythrocyte NADH-cytochrome b5 reductase as an alpha-thrombin-cleavable fused protein in Escherichia coli (1989), Biochim. Biophys. Acta, 1008, 189-192.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Homo sapiens

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.0008
-
NADH
-
Homo sapiens
0.00114
-
cytochrome b5
-
Homo sapiens

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane
-
Homo sapiens 16020
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
33000
-
recombinant enzyme, gel filtration Homo sapiens

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2 ferricytochrome b5 + NADH Homo sapiens soluble form of erythrocytes: reduction of methemoglobin 2 ferrocytochrome b5 + NAD+ + H+
-
?

Organism

Organism UniProt Comment Textmining
Homo sapiens
-
-
-

Posttranslational Modification

Posttranslational Modification Comment Organism
lipoprotein myristic acid at NH2-terminus, amide bond, no ester bond Homo sapiens

Purification (Commentary)

Purification (Comment) Organism
recombinant enzyme Homo sapiens

Source Tissue

Source Tissue Comment Organism Textmining
erythrocyte soluble form Homo sapiens
-
liver
-
Homo sapiens
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
96.3
-
recombinant enzyme Homo sapiens

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2 ferricytochrome b5 + NADH soluble form of erythrocytes: reduction of methemoglobin Homo sapiens 2 ferrocytochrome b5 + NAD+ + H+
-
?
NADH + ferricytochrome b5
-
Homo sapiens NAD+ + H+ + ferrocytochrome b5
-
r

Cofactor

Cofactor Comment Organism Structure
FAD 1 mol FAD per mol of recombinant enzyme Homo sapiens
NADH
-
Homo sapiens