| 摘要 |
Peptide motifs DX<SUB>a</SUB>AX<SUB>b</SUB>PX<SUB>c </SUB>(SEQ ID NO: 1) or (CDX<SUB>a</SUB>AX<SUB>b</SUB>PX<SUB>c</SUB>CG) (SEQ ID NO: 2) that define binding to avidin or Neutravidin with high affinity, but not to streptavidin. Peptides, polypeptides and other molecules that incorporate this motif may be identified, detected, or purified by methods involving the specific binding of the motif sequence with avidin or Neutravidin. Orthogonal selection or labeling methods employing the specific binding of this peptide motif to avidin and Neutravidin, as well as utilization of the binding interaction between streptavidin and molecules that specifically bind to it.
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