Multiple Assemblies exist for SMTL entry 1sre
CRYSTALLOGRAPHIC AND THERMODYNAMIC COMPARISON OF NATURAL AND SYNTHETIC LIGANDS BOUND TO STREPTAVIDIN; X-RAY DIFFRACTION 1.78 Å

SMTL ID
1sre.1
Ligands
2-((4'-HYDROXYPHENYL)-AZO)BENZOIC ACID
Polypeptides
STREPTAVIDIN
Oligo-state
homo-tetramer
SMTL ID
1sre.2
Ligands
2-((4'-HYDROXYPHENYL)-AZO)BENZOIC ACID
Polypeptides
STREPTAVIDIN
Oligo-state
homo-octamer