PDBID	Molecule/ Organism	Pfam	Residues	HETATM	Symmetry	Pubmed	View
1nsc	NEURAMINIDASE Influenza B virus	Neur	ASN A 108 ASN B 108 ASN C 108 ASN D 108	None	homomer cyclic	8069621
2o26	KIT LIGAND Mus musculus	SCF	ASN A  21 ASN A  72 ASN B  21 ASN B  72	None	heteromer cyclic	17255936
3swn	U6 SNRNA-ASSOCIATED SM-LIKE PROTEIN LSM5 U6 SNRNA-ASSOCIATED SM-LIKE PROTEIN LSM6 Schizosaccharomyces pombe	LSM	ASN A  41 ASN A  66 ASN A  68 ASN B  65	None	heteromer cyclic	22001694