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Key Documents

C2867

Sigma-Aldrich

Cytochrome c from equine heart

BioUltra, ≥99% (SDS-PAGE), powder, suitable for mammalian cell culture

Synonym(s):

CYC, CytC, Cytochrome c from horse heart

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About This Item

CAS Number:
EC Number:
MDL number:
UNSPSC Code:
12352202
NACRES:
NA.25

biological source

horse heart

Quality Level

product line

BioUltra

Assay

≥99% (SDS-PAGE)

form

powder

mol wt

12,384

storage condition

(Tightly closed Dry)

technique(s)

cell culture | mammalian: suitable

solubility

water: 10 mg/mL, dark red-brown

UniProt accession no.

storage temp.

−20°C

Gene Information

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General description

Cytochrome C (Cyt C) is a nuclear DNA-encoded protein. It is derived from its precursor apo-cytochrome c and moves across the outer membrane of the mitochondria.

Research area: Apoptosis

Application

Cytochrome c from equine heart has been used to prepare a stock solution for synthesizing and calibrating biotinylated cytochrome c. It has also been used as a component of the reaction buffer to stain electron transport chain (ETC) complex IV and determine its activity using blue-native gel electrophoresis.
The specific sites and extent of oxidation in horse cytochrome c treated with H2O2 and UV were characterized. It was suggested that the state of these sites could be used as a biomarker for the oxidative environment in a cell.

Biochem/physiol Actions

Cytochrome C (Cyt C) acts as a potent signaling molecule of apoptosis by activating caspase 3, a death protease. It plays a role in heme-binding with the help of cytochrome c heme lyase which facilitates its release into the mitochondrial intermembrane space. Cyt C also exhibits lipid-binding by interacting with cardiolipin, a phospholipid that initiates protein unfolding and activates the peroxidase function in Cyt C.
Cytochrome c is primarily known as an electron-carrying mitochondrial protein. The transition of cytochrome c between the ferrous and ferric states within the cell makes it an efficient biological electron-transporter and it plays a vital role in cellular oxidations in both plants and animals. It is generally regarded as a universal catalyst of respiration, forming an essential electron-bridge between the respirable substrates and oxygen

Preparation Note

A further purification of C2506
Prepared using TCA.

Other Notes

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Articles

Learn about the four membrane-bound protein complexes that make up the electron transport chain metabolic pathway supplying energy as ATP for cellular respiration.

Chromatograms

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