Fig. 1.

Phage ELISA performed with the phage libraries obtained after three rounds of panning on mAb 8015 and mAb EP498Y. (A) Phage ELISA performed with the mAb EP498Y-enriched library. Two hundred nanograms of mAb EP498Y was coated in the assays. (B) Phage ELISA performed with the mAb 8015-enriched library. Two hundred nanograms of mAb 8015 was coated in the assays. Nitrocefin (100 µM) was used as substrate. The mAb anti-HA (200 ng per well) was used as a control for non-specific-binding activity.