Identification of ssDNA aptamers specific for anti-neuroexcitation peptide III and molecular modeling studies:

Jun Zhu1, Jian Wang, Zhen-Cheng Su

  • 1School of Life Science and Bio-pharmaceutics, Shenyang Pharmaceutical University, Shenyang, People's Republic of China.

Twelve ssDNA aptamers specific for a novel recombinant anti-neuroexcitation peptide (ANEPIII) were identified using the SELEX method from a 79-nucleotide ssDNA pool to purify ANEPIII in a more efficient way. To further understand the binding modes between ssDNA and ANEPIII, fully flexible dinucleotides were docked onto the homology-modeled ANEPIII structure. AutoDocking identified favorable binding sites on ANEPIII for nucleotides, which was valuable for designing more potent ligands.

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