biocytin


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bi·o·cy·tin

(bī-ō-sī'tin),
Biotin condensed through its carboxyl group with the ε-amino group of a lysyl residue in the apoenzymes to which biotin is the coenzyme; the predominant linkage in which biotin is found.
Synonym(s): biotinyllysine

biocytin

Biotin covalently linked to lysine. Biocytin is an intermediate in biotin metabolism, and is found in serum and excreted in urine.

bi·o·cy·tin

(bī'ō-sī'tin)
A complex molecule of biotin and lysine released from digested protein to act as a catalyst in the tricarboxylic acid cycle.
References in periodicals archive ?
This study was meant to locate the neurons projecting to the oculomotor nucleus of the lesser spotted dogfish, Scyliorhinus canicula, by applying biocytin to either the oculomotor nuclei or the medial longitudinal fasciculus (MLF).
To facilitate identification, the motoneurons were retrogradely labeled with fluorescent dye (AlexaFluor 594 biocytin, Molecular Probes, Eugene, OR) before the brain was sliced.