Cytochrome C From Bovine Heart 95% - 100 Mg - Sigma
Código: 25610
Cytochrome c from bovine heart
≥95% based on Mol. Wt. 12,327 basis, powder, suitable for mammalian cell culture
Sinônimo(s):
CYC, CytC
Sobre este item
Número CAS:
UNSPSC Code:
12352202
EC Number:
232-700-9
NACRES:
NA.61
MDL number:
Form:
powder
Assay:
≥95% based on Mol. Wt. 12,327 basis
Biological source:
bovine heart
Mol wt:
12327 Da
biological source
bovine heart
Quality Level
assay
≥95% based on Mol. Wt. 12,327 basis
form
powder
mol wt
12327 Da
storage condition
(Tightly closed Dry)
technique(s)
cell culture | mammalian: suitable
impurities
0.40-0.50% Iron (anhydrous)
solubility
water: 10 mg/mL, dark red-brown
UniProt accession no.
storage temp.
−20°C
Gene Information
cow ... CYC1(512500)
General description
Research area: Apoptosis
Cytochrome c (Cyt C) is an essential mitochondrial protein located in the inner membrane of the mitochondria.[1] It is encoded in the nucleus as apo-cytochrome C.[2] Cyt C occurs as membrane-bound or as soluble metalloproteins in energy-transducing membranes and is found in bacteria, archaea, and plastids.[1] It belongs to the group of class IIa cytochromes and contains pentacoordinate heme centres.[3]
Application
Cytochrome C from bovine heart has been used:
-
as a component of the assay solution for testing the activity of respiratory chain complexes III and IV in the mitochondria of human osteosarcoma and human hepatocarcinoma cell lines[4]
-
to determine the cytochrome c oxidase activity in mitochondria of human aortic endothelial cells[5]
-
as a component of the cyt C oxidase reaction solution during in situ enzyme staining of cyt C oxidase in mice kidney tissues
Biochem/physiol Actions
Cytochrome C (Cyt C) is involved in the activation of caspase during the caspase-dependent apoptosis intrinsic pathway that triggers programmed cell death through apoptosis.[6] It shows lipid-binding activity through its interaction with cardiolipin that accounts for the peroxidase activity of Cyt C.[1] Cyt C binds to heme via the help of cytochrome c heme lyase that enables its release into the mitochondrial intermembrane space.[7]
The ready fluctuation of cytochrome c within the cell between ferrous and ferric states, makes it an efficient biological electron-transporter. It plays a vital role in cellular oxidations in both plants and animals. Generally regarded as a universal catalyst of respiration, it forms the essential electron-bridge between the respirable substrates and oxygen.
The ready interconversion of cytochrome c between ferrous and ferric states makes it an efficient biological electron carrier. It plays a vital role in cellular oxidations in both plants and animals. Generally regarded as a universal link in the respiratory chain, it forms the essential electron-bridge between the respirable substrates and oxygen.
Preparation Note
Prepared with acetic acid without using TCA.

