1. O'Shannessy DJ, et al. Quantitation of glycoproteins on electroblots using the biotin-streptavidin complex. Anal Biochem. 1987 May 15;163(1):204-9. 2. Takahashi T, et al. A new biotinylating system for DNA using biotin aminocaproyl hydrazide and glutaraldehyde. Nucleic Acids Res. 1989 Jun 26;17(12):4899-900.