ATG12a (AUTOPHAGY 12); protein binding. Identical to Autophagy-related protein 12a (ATG12A) [Arabidopsis Thaliana] (GB:Q8S924); similar to APG12/APG12B (AUTOPHAGY 12) [Arabidopsis thaliana] (TAIR:AT3G13970.1); similar to Putative autophagy-related protein 12 (GB:Q1SF86); contains InterPro domain Autophagy protein 12; (InterPro:IPR007242)