biocytin
(redirected from biotinyllysine)Also found in: Medical.
biocytin
[‚bī·ō′sīt·ən] (biochemistry)
C16H28N4O4S Crystals with a melting point of 241-243°C; obtained from dilute methanol or acetone solutions; characterized by its utilization by Lactobacillus casei and L. delbrückii LD5 as a biotin source, and by its unavailability as a biotin source to L. arabinosus. Also known as biotin complex of yeast.