Primer-free aptamer selection using a random DNA library.

Weihua Pan, Gary A. Clawson

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Aptamers are high-affinity oligonucleotides which can be selected from large random libraries by systematic evolution of ligands by exponential enrichment (SELEX) protocols, with affinities and specificities comparable or better than antibodies. The SELEX protocols comprise multiple rounds of selection, each of which require regeneration of bound ligands, which in turn require fixed primer sequences flanking the random library regions. These fixed primer sequences can interfere (with false positives and negatives) with the selection process. Here we present a primer-free protocol using a random DNA library.

Original languageEnglish (US)
Pages (from-to)369-385
Number of pages17
JournalMethods in molecular biology (Clifton, N.J.)
StatePublished - 2010

All Science Journal Classification (ASJC) codes

  • Molecular Biology
  • Genetics


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