PDBID Molecule/
Organism		 Pfam Residues HETATM Symmetry Pubmed View
1k6y INTEGRASE
Human immunodeficiency virus 1		Integrase_Zn
rve		GLU A  87
LYS A 103
GLU B  87
LYS B 103
None
homomer
cyclic		11743009
1zmt HALOALCOHOL DEHALOGENASE HHEC
Agrobacterium tumefaciens		adh_short_C2LYS B 204
GLU B 247
LYS D 204
GLU D 247
None
homomer
dihedral		16173767
3qx3 DNA TOPOISOMERASE 2-BETA
Homo sapiens		DNA_topoisoIV
TOPRIM_C
Toprim		LYS A1074
GLU A1082
LYS B1074
GLU B1082
None
homomer
cyclic		21778401