PPI - iRefIndex UniProt A UniProt B Method PMID Interaction Type Edge type Num Participants P42748 B9DGC9 pull down 19061479 direct interaction X 2 P42748 Q8VYD2 two hybrid 21798944 direct interaction X 2 P42748 Q8VYD2 two hybrid array 21798944 physical association X 2

PPI - PINA Gene A Gene B Method Publications Species A Species B Interaction Type Source Database Interaction Identidiers Experimental Role(s) Interactor A Experimental Role(s) Interactor B UBC4 At2g25650 MI:0018(two hybrid)|MI:0397(two hybrid array) 21798944 taxid:3702(Arabidopsis thaliana) taxid:3702(Arabidopsis thaliana) MI:0407(direct interaction)|MI:0915(physical association) (biogrid)|(intact) BIOGRID_12389|UniProt_2395 prey|bait bait|prey UBC4 COP10 MI:0096(pull down) 19061479 taxid:3702(Arabidopsis thaliana) taxid:3702(Arabidopsis thaliana) MI:0407(direct interaction) (biogrid) BIOGRID_1402 prey bait

PPI - HINT Gene A Gene B PMID Method Quality UBC4 Q8VYD2 21798944,21798944 0018,0397 HT UBC4 COP10 19061479 0096 LC