1.6.2.2: cytochrome-b5 reductase

This is an abbreviated version!
For detailed information about cytochrome-b5 reductase, go to the full flat file.

Word Map on EC 1.6.2.2

1.6.2.2

erythrocyte

methemoglobinemia

nadph-cytochrome

hereditary

reductases

cyanosis

fad

ferricyanide

flavoproteins

desaturation

dt-diaphorase

aniline

amidoxime

methb

hemolysate

bioreductive

n-demethylase

aminopyrine

marc

n-hydroxylated

mixed-function

nadh-binding

methaemoglobin

medicine

oxyhemoglobin

diagnostics

analysis

industry

drug development

Reaction

+ 2 ferricytochrome b5 =

+ 2 ferrocytochrome b5

Synonyms

b5 plusb5R, b5/b5R, B5R, cb5r, CBR, CBR1, CBR1A, CBR1B, CyB5R, CYB5R2, CYB5R3, Cyb5R4, cyt b5r, cyt b5R protein, cytochrome b5 reductase, cytochrome b5 reductase 2, cytochrome b5 reductase 3, DIA1, diaphorase I, dihydronicotinamide adenine dinucleotide-cytochrome b5 reductase, HPO-19, methemoglobin reductase, NADH cytochrome b5 oxidoreductase, NADH cytochrome B5 reductase, NADH-b5R, NADH-cytochrome b 5 reductase, NADH-cytochrome b5 reductase, NADH-cytochrome b5 reductase 3, NADH-cytochrome-b5 reductase, NADH-cytochrome-b5 reductase 3, NADH-dependent cytochrome b5 reductase, NADH-ferricyanide reductase, NADH-ferricytochrome b5 oxidoreductase, NADH-ferricytochrome reductase, NADH: ferricytochrome b5 oxidoreductase, NADH:cytochrome b5 reductase, NADH:ferricytochrome b5 oxidoreductase, Ncb5or, P34/P32, P35, reduced nicotinamide adeninedinucleotide-cytochrome b5 reductase, reductase, cytochrome b5, T05H4.4

ECTree

1 Oxidoreductases

1.6 Acting on NADH or NADPH

1.6.2 With a heme protein as acceptor

1.6.2.2 cytochrome-b5 reductase

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Results	in table
4	Activating Compound
9501	AA Sequence
13	Application
1	CAS Registry Number
37	Cloned(Commentary)
143	Cofactor
13	Crystallization (Commentary)
772	Disease/ Diagnostics
3	Expression
36	General Information
13	General Stability
15	IC50 Value
118	Inhibitors
23	kcat/KM [mM/s]
5	Ki Value [mM]
302	KM Value [mM]
111	Localization
9	Metals/Ions
50	Molecular Weight [Da]
75	Natural Substrates/ Products (Substrates)
170	Organism
1	Oxidation Stability
1	Pathway
21	PDB ID
27	pH Optimum
2	pH Range
2	pH Stability
1	pI Value
5	Posttranslational Modification
117	Protein Variants
60	Purification (Commentary)
9	Reaction
3	Reaction Type
167	Reference
1	Renatured (Commentary)
126	Source Tissue
44	Specific Activity [micromol/min/mg]
13	Storage Stability
246	Substrates and Products (Substrate)
41	Subunits
129	Synonyms
1	Systematic Name
8	Temperature Optimum [°C]
7	Temperature Stability [°C]
224	Turnover Number [1/s]

pH Optimum

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pH Optimum on EC 1.6.2.2 - cytochrome-b5 reductase

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5 - 5.7

Pisum sativum

394205

5.2

Homo sapiens

NADH-methemoglobin-ferrocyanide

392811

5.5

Phascolopsis gouldii

acceptor ferricyanide

394194

5.6

Saccharomyces cerevisiae

steady decrease above

394228

5.7 - 8

Homo sapiens

rapid decrease above

394216

Physarum polycephalum

Q1HA49

around, recombinant enzyme

685672

6 - 8

Phascolopsis gouldii

acceptor Phascolopsis gouldii cytochrome b5

394194

6.4

2 entries

6.5

Oryctolagus cuniculus

Tris-phosphate buffer

394227

6.5 - 8.5

Homo sapiens

NADH-ferricyanide

392811

6.6

Oryctolagus cuniculus

Tris-maleate buffer

6.6 - 7.5

assay at

6.8

reduction of cytochrome c

394245

6.8 - 7.5

Ovis aries

394255

Oryctolagus cuniculus

triethanolamine buffer

7 - 7.5

7.2 - 8.4

assay at, dependent on assay method

724801

7.5

2 entries

4 entries

8.2

Propsilocerus akamusi

the enzyme shows two peaks of activity at pH 6.4 and 8.2

742312

additional information

Oryctolagus cuniculus

no distinct optimum with phosphate or Tris-HCl buffer

394218