cytochrome c

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cytochrome c

A scientist examines a model of cytochrome c in a laboratory.

Definition
  1. Noun:
    • A specific type of cytochrome: Cytochrome c is the most abundant and stable form of cytochrome, a class of proteins containing heme as a cofactor.
    • Role in cellular respiration: It is a key component in the electron transport chain, where it functions in the transfer of electrons and is essential for the process of energy (ATP) production within cells.
Usage Examples
  • Noun:
    • Cytochrome c is crucial for aerobic respiration in eukaryotic organisms.
    • Scientists study the structure of cytochrome c to understand evolutionary relationships between species.
    • A deficiency in cytochrome c can disrupt cellular energy production.
Advanced Usage

  • "Cytochrome c release": In cell biology, this phrase refers to the release of cytochrome c from mitochondria into the cell's cytoplasm, which is a key step in initiating apoptosis (programmed cell death).

    • The release of cytochrome c from the mitochondria triggers the caspase cascade.

  • "Cytochrome c oxidase": This is the name of the enzyme complex (Complex IV) to which cytochrome c transfers electrons in the respiratory chain.

    • Cytochrome c transfers electrons to cytochrome c oxidase.
Variants and Related Words

  • Cytochrome (n): The general class of hemoproteins involved in electron transport.

    • Several types of cytochromes, such as cytochrome b and cytochrome c, function in the mitochondrial membrane.

  • Apoptosis (n): Programmed cell death, a process in which cytochrome c plays a signaling role.

  • Electron transport chain (n): The series of protein complexes where cytochrome c operates.
Synonyms
  • Mitochondrial cytochrome c: A more specific term highlighting its primary location.
  • Heme protein C: Refers to its chemical structure as a hemoprotein.
Related Phrases
  • Cytochrome c peroxidase: An enzyme that uses cytochrome c as a substrate.
  • Cytochrome c reductase: Another name for Complex III, the enzyme complex that donates electrons to cytochrome c.
Notes
  • Cytochrome c is highly conserved across different species, meaning its structure changes very little through evolution, making it a valuable tool for molecular phylogenetics.
  • It is water-soluble and located in the intermembrane space of mitochondria.
cytochrome c

A scientist examines a model of cytochrome c in a laboratory.

Noun
  1. the most abundant and stable cytochrome; involved in energy transfer