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C8857 Sigma

ProteoMass Cytochrome c MALDI-MS Standard

vial of 10 nmol, (M+H+) 12,361.96 Da by calculation

Synonym: Cytochrome c from equine heart, Cytochrome c from horse heart




Protein calibration standard for MALDI-MS instruments.

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 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.

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New Internal Standards for Mass Spectrometry
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NONH for all modes of transport
WGK Germany 
Protocols & Articles

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