(biochemistry) A sulfur-containing member of the vitamin B complex, 5-[(3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoic acid, found in liver, egg yolk, milk, and yeast, essential to the activity of multiple enzyme systems.

plural of biotin

(biochemistry) Able to undergo biotinylation

(oncology) The vitamin biotin labelled with radioactive (yttrium-90), used in the treatment of cancer, where it seeks out tumor cells that have been targeted by an antibody linked to streptavidin and kills them.

(biochemistry) Modified by reaction with a biotin group

(biochemistry) The attachment of a biotin residue to a biological macromolecule in order to label it.

plural of biotinylation

plural of biotinidase

(biochemistry) An enzyme that allows the body to use and recycle biotin.

plural of biotinide