Cytochromes P450 (CYPs) are proteins of the superfamily containing heme as a cofactor and, therefore, are hemoproteins.
Cytokines (cyto, from Greek "κύτταρο" kyttaro "cell" + kines, from Greek "κίνηση" kinisi "movement") are a broad and loose category of small proteins (~5–20 kDa) that are important in cell signaling.
A cytoskeleton is present in all cells of all domains of life (archaea, bacteria, eukaryotes). It is a complex network of interlinking filaments and tubules that extend throughout the cytoplasm, from the nucleus to the plasma membrane.
The cytosol or cytoplasmic matrix is the liquid found inside cells. It constitutes most of the intracellular fluid (ICF).
Cytogenetics is a branch of genetics that is concerned with the study of the structure and function of the cell, especially the chromosomes.
In cell biology, the cytoplasm is the material within a living cell, excluding the cell nucleus. It comprises cytosol (the gel-like substance enclosed within the cell membrane) and the organelles – the cell's internal sub-structures.
The cytochrome complex, or cyt c is a small hemeprotein found loosely associated with the inner membrane of the mitochondrion.
Cytoplasmic streaming, also called protoplasmic streaming and cyclosis, is the directed flow of cytosol (the liquid component of the cytoplasm) and organelles around fungal and plant cells.
The enzyme cytochrome c oxidase or Complex IV, EC 220.127.116.11 is a large transmembrane protein complex found in bacteria and the mitochondrion of eukaryotes.
Cytochalasin B, the name of which comes from the Greek cytos (cell) and chalasis (relaxation), is a cell-permeable mycotoxin.