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C1427

Cytochrome b5 human

recombinant, expressed in E. coli (histidine-tagged), ≥90% (SDS-PAGE)

Synonym(s):

Cytochrome b5

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Size/SKUAvailabilityPrice
0.1 mg
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$660.00

About This Item

UNSPSC Code:
12161501
NACRES:
NA.47
MDL number:
Form:
solution
Assay:
≥90% (SDS-PAGE)
Biological source:
human
Recombinant:
expressed in E. coli (histidine-tagged)
Mol wt:
16 kDa

$660.00


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biological source

human

Quality Segment

recombinant

expressed in E. coli (histidine-tagged)

assay

≥90% (SDS-PAGE)

form

solution

mol wt

16 kDa

technique(s)

inhibition assay: suitable

suitability

suitable for molecular biology

UniProt accession no.

shipped in

dry ice

storage temp.

−70°C

Gene Information

human ... CYB5A(1528)

General description

Cytochrome b5 (CYB5A) gene codes for cytochrome b5 protein. It is located on human chromosome 18. It is co-expressed in the Leydig cells of the testis and theca cells of the ovary.

Biochem/physiol Actions

Cytochrome b5 is a membrane-bound heme-containing protein that enhances the catalytic efficiency of some P450 isoforms. Its mechanism of action is unknown.
Membrane-bound heme-containing protein; enhances catalytic efficiency of some P450 isoforms.
Cytochrome b5 (CYB5A) mediates NADH-dependent reduction of methemoglobin (erythrocytes), electron transfer to fatty-acid desaturases (mainly liver) and steroid and xenobiotics metabolism by cytochrome P450 enzymes. It is essential for androstenedione synthesis. CYB5A helps in the efficient synthesis of gonadal androgen.

Physical form

Solution in 20 mM phosphate buffer, pH 7.25, with 0.1 mM EDTA

Analysis Note

Heme content measured using difference spectroscopy. An extinction coefficient of 100 mM-1 for the absorbance difference between 490 nm and 424 nm is used to calculate the concentration of cytochrome b5.

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HPA047548HPA058547EHU092461
description

recombinant, expressed in E. coli (histidine-tagged), ≥90% (SDS-PAGE)

description

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

description

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

description

targeting human CYB5A

technique(s)

inhibition assay: suitable

technique(s)

immunohistochemistry: 1:200-1:500, immunofluorescence: 0.25-2 μg/mL

technique(s)

immunofluorescence: 0.25-2 μg/mL, immunoblotting: 0.04-0.4 μg/mL, immunohistochemistry: 1:50-1:200

technique(s)

-

recombinant

expressed in E. coli (histidine-tagged)

recombinant

-

recombinant

-

recombinant

-

biological source

human

biological source

rabbit

biological source

rabbit

biological source

-

assay

≥90% (SDS-PAGE)

assay

-

assay

-

assay

-

suitability

suitable for molecular biology

suitability

-

suitability

-

suitability

-

mol wt

16 kDa

mol wt

-

mol wt

-

mol wt

-


Storage Class

10 - Combustible liquids

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)



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Questions

1–2 of 2 Questions  
  1. Is this a properly folded functional protein in a membrane bilayer environment? Has this product been tested to work in electron transfer reactions in in vitro enzyme assays?

    1 answer
    1. This product is full-length human cytochrome b5 and includes the transmembrane domain. This product is supplied as a buffered solution and is not incorporated into a membrane bilayer. Proper folding and function within a membrane bilayer have not been specifically validated.

      Helpful?

  2. does this recombinant version of the protein still contain its membrane bound domain?

    1 answer
    1. This recombinant protein is full-length and includes the transmembrane domain.

      Helpful?

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