PDBID	Molecule/ Organism	Pfam	Residues	HETATM	Symmetry	Pubmed	View
1ldf	GLYCEROL UPTAKE FACILITATOR PROTEIN Escherichia coli	MIP	GLU A  43 GLU B  43 GLU C  43 GLU D  43	MG A 301  MG B 301  MG C 301  MG D 301	homomer cyclic	11964478
2g7o	PROTEIN TRAM Escherichia coli	Tra_M	GLU A  88 GLU B  88 GLU C  88 GLU D  88	None	homomer cyclic	16710295
2pn6	150AA LONG HYPOTHETICAL TRANSCRIPTIONAL REGULATOR Sulfurisphaera tokodaii	AsnC_trans_reg HTH_24	GLU A 130 GLU B 130 GLU C 130 GLU D 130	None	homomer dihedral	18653535