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Literature summary for 1.6.2.2 extracted from

  • Lee, J.Y.; Kim, Y.H.; Lee, S.J.
    Purification and comparison of NADH-cytochrome b5 reductase from mitochondrial outer membrane of bovine heart and turnip (1998), Bull. Chem. Soc. Kor., 19, 160-164.
No PubMed abstract available

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.17
-
NADH
-
Bos taurus
2.34
-
NADPH
-
Bos taurus
3.32
-
NADH
-
Brassica napus
3.85
-
ferricyanide
-
Bos taurus
4.35
-
ferricyanide
-
Brassica napus
7.69
-
NADPH
-
Brassica napus

Localization

Localization Comment Organism GeneOntology No. Textmining
membrane
-
Bos taurus 16020
-
membrane
-
Brassica napus 16020
-
mitochondrion
-
Brassica napus 5739
-

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
35000
-
x * 35000, SDS-PAGE Bos taurus
35000
-
x * 35000, SDS-PAGE Brassica napus

Organism

Organism UniProt Comment Textmining
Bos taurus
-
-
-
Brassica napus
-
turnip
-

Purification (Commentary)

Purification (Comment) Organism
DEAE-cellulose, DEAE-Sephadex, hydroxyapatite Brassica napus

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
28.6 units, 1 unit is defined as the amount of enzyme changing 0.001 of DELTAAbsorbance/min Bos taurus
additional information
-
41.25 units, 1 unit is defined as the amount of enzyme changing 0.001 of DELTAAbsorbance/min Brassica napus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2 ferricytochrome b5 + NADH
-
Bos taurus 2 ferrocytochrome b5 + NAD+ + H+
-
?
2 ferricytochrome b5 + NADH artificial acceptor: ferricyanide, high reactivity with NADPH as electron donor Brassica napus 2 ferrocytochrome b5 + NAD+ + H+
-
?
NADH + ferricyanide
-
Brassica napus NAD+ + H+ + ferrocyanide
-
r
NADPH + ferricyanide
-
Bos taurus NADP+ + H+ + ferrocyanide
-
r
NADPH + ferricyanide
-
Brassica napus NADP+ + H+ + ferrocyanide
-
r

Subunits

Subunits Comment Organism
? x * 35000, SDS-PAGE Bos taurus
? x * 35000, SDS-PAGE Brassica napus

Cofactor

Cofactor Comment Organism Structure
NADPH
-
Brassica napus