NPR1 (NONEXPRESSER OF PR GENES 1); protein binding. Identical to Regulatory protein NPR1 (NPR1) [Arabidopsis Thaliana] (GB:P93002;GB:O04742); similar to ankyrin repeat family protein / BTB/POZ domain-containing protein [Arabidopsis thaliana] (TAIR:AT4G26120.1); similar to putative NPR1 [Brassica napus] (GB:ABR21207.1); similar to putative NPR1 [Brassica napus] (GB:AAM88865.2); similar to putative NPR1 transcriptional factor [Brassica juncea] (GB:AAV52267.1); contains InterPro domain BTB/POZ fold; (InterPro:IPR011333); contains InterPro domain BTB/POZ-like; (InterPro:IPR000210); contains InterPro domain Ankyrin (InterPro:IPR002110); contains