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C7752 Sigma

Cytochrome c from equine heart

≥95% based on Mol. Wt. 12,384 basis

Synonym: Cytochrome c from horse heart



Related Categories Apoptosis and Cell Cycle, Cell Biology, Cell Signaling and Neuroscience, Cytochrome c, Cytochromes,
Quality Level   PREMIUM
assay   ≥95% (SDS-PAGE)
  ≥95% based on Mol. Wt. 12,384 basis
mol wt   mol wt 12,384
storage temp.   −20°C


Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Biochem/physiol Actions

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

Other Notes

View more information on cytochrome c and electron transport at www.sigma-aldrich.com/enzymeexplorer.


1, 5 g in glass bottle

50, 100, 500 mg in glass bottle

Preparation Note

Prepared with acetic acid without using TCA.


Cytochrome c has been identified as an important mediator in apoptotic pathways. The release of mitochondrial cytochrome c into the cytoplasm stimulates apoptosis and is commonly used as an indicator of the apoptotic process in the cell. Investigation on the effect of Paris saponin I (PS I) on human gastric carcinoma cell growth (SGC7901 cells) have shown an elevated level cytoplasmic cytochrome c. Results are an inhibition of proliferation in SGC7901 cells by inducing mitochondria-dependent apoptosis through cytochrome c.

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.

Price and Availability

Suggested Laboratory Gloves

Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.

Flow Cytometry Instruments
Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Certificate of Origin

Protocols & Articles


Enzymatic Assay of Superoxide Dismutase

This procedure applies to all products that have a specification for superoxide dismutase activity by enzymatic determination.
Keywords: Catalysis, Reductions

Peer-Reviewed Papers


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