Model systems for interacting heme moieties. I. The heme undecapeptide of cytochrome c.
1967
D W Urry
UI
MeSH Term
Description
Entries
D010455
Peptides
Members of the class of compounds composed of AMINO ACIDS joined together by peptide bonds between adjacent amino acids into linear, branched or cyclical structures. OLIGOPEPTIDES are composed of approximately 2-12 amino acids. Polypeptides are composed of approximately 13 or more amino acids. PROTEINS are considered to be larger versions of peptides that can form into complex structures such as ENZYMES and RECEPTORS.
Peptide,Polypeptide,Polypeptides
D003580
Cytochromes
Hemeproteins whose characteristic mode of action involves transfer of reducing equivalents which are associated with a reversible change in oxidation state of the prosthetic group. Formally, this redox change involves a single-electron, reversible equilibrium between the Fe(II) and Fe(III) states of the central iron atom (From Enzyme Nomenclature, 1992, p539). The various cytochrome subclasses are organized by the type of HEME and by the wavelength range of their reduced alpha-absorption bands.
Cytochrome
D006418
Heme
The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.
Ferroprotoporphyrin,Protoheme,Haem,Heme b,Protoheme IX
D013053
Spectrophotometry
The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.