Index	Protein Name	Organism	UniProt ID/ACC	#Protein-Ligand Complex(es)
1	Polyubiquitin-B	Bos taurus (Bovine)	P0CG53/UBB_BOVIN	1
2	Ubiquitin-40S ribosomal protein S31	Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)	P05759/RS31_YEAST	1