Synthesis of Biotin Linkers with the Activated Triple Bond Donor [p-(N-propynoylamino)toluic Acid] (PATA) for Efficient Biotinylation of Peptides and Oligonucleotides

Molecules

Martina Jezowska²  Joanna Romanowska²  Burcu Bestas¹  Ulf Tedebark³ 

[1] Clinical Research Center, Karolinska Institutet, Karolinska University Hospital Huddinge, Novum, SE-14186 Huddinge, Sweden; E-Mail:;Department of Biosciences and Nutrition, Karolinska Institutet, Novum, SE-14183 Huddinge, Sweden; E-Mail:;GE Healthcare Bio-Sciences AB, Björkgatan 30, SE-75184 Uppsala, Sweden; E-Mail:

关键词: biotin;    streptavidin;    click chemistry;    biotin linker;    oligonucleotide conjugates;   

DOI  :  10.3390/molecules171214174

来源: mdpi

【 摘 要 】

Biotin is an important molecule for modern biological studies including, e.g., cellular transport. Its exclusive affinity to fluorescent streptavidin/avidin proteins allows ready and specific detection. As a consequence methods for the attachment of biotin to various biological targets are of high importance, especially when they are very selective and can also proceed in water. One useful method is Hüisgen dipolar [3+2]-cycloaddition, commonly referred to as “click chemistry”. As we reported recently, the activated triple bond donor p-(N-propynoylamino)toluic acid (PATA) gives excellent results when used for conjugations at submicromolar concentrations. Thus, we have designed and synthesized two biotin linkers, with different lengths equipped with this activated triple bond donor and we proceeded with biotinylation of oligonucleotides and C-myc peptide both in solution and on solid support with excellent yields of conversion.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.