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. 2012 Jun 4;7(6):e37845. doi: 10.1371/journal.pone.0037845

Figure 3. Identification and characterization of DARPin binders by ELISA.

Figure 3

(A) Specificity ELISA using bLmrCDAviC, bMsbAAviC and bAcrBAviC as target proteins. Seven DARPins (α-LmrCD#1-5, DARPin_Act2 and DARPin_Act3) were found to be highly specific for bLmrCDAviC. Many initial DARPin binder-hits promiscuously bound to bLmrCDAviC, bMsbAAviC and bAcrBAviC as exemplified with the “unsp. DARPin” and were therefore not useful for further analysis. DARPins specific for bMsbAAviC (DARPin_55) and bAcrBAviC (110819) were used as a positive control. (B) ELISA analyzing binding of the LmrCD-specific DARPins shown in (A) to LmrC (bLmrC-GFP), LmrD (bLmrD-GFP) and the nucleotide binding domain of LmrD (bLmrD-NBDAviN). Binding to LmrCD (bLmrCDAviC) was confirmed as positive control.