dbcosspeg4biotin

(+)-Biotin 4-amidobenzoic acid is a substrate of biotinidase, which cleaves biotin amide to give biotin in vivo. Biotin is an essential coenzyme for certain carboxylases and is used to modify histones and regulate gene transcription. Biotinidase has key roles in intestinal absorption of biotin, the transport of biotin in plasma, and in the regulation of histone biotinylation. (+)-Biotin 4-amidobenzoic acid is hydrolyzed by biotinidase to release 4-aminobenzoic acid (PABA), which can be quantified by either fluorescent or colorimetric methods. This approach is used in biotinidase activity assays in newborn screening protocols to evaluate biotinidase deficiency.

Biotin-4-aminophenol (BP) is a selective and potent biotin-phenol analog that works by generating free radicals and binding to tyrosine residues in proteins.

DBCO-SS-PEG4-Biotin is a cleavable link mid-functional ADC linker composed of a 4-unit PEG moiety. It finds utility in the synthesis of antibody-drug conjugates (ADCs)[1].