Staudt, T., Kräusslich, H. G., Knemeyer, J. P. & Marmé, N. (2007). New HIV-protease assays applying self-quenching peptide substrates in combination with time-resolved fluorescence single-molecule spectroscopy, International Journal of Environmental Analytical Chemistry , 2007(87), 731-743.
Abstract This work describes the optimization and adoption of an assay system for the Human Immunodeficiency Virus (HIV)-protease, whose inhibition plays a central role in HIV therapy. The HIV-protease, which is an essential enzyme during viral maturation, has a specific cleavage site of eight amino acid residues (SQNY*PIV). Adding two amino acid residues at the N-terminus and enclosing the resulting sequence by a dye-labelled lysine residue and a tryptophan residue leads to the substrate (K(dye)CGSQNY*P