Multiple Assemblies exist for SMTL entry 4en1
The 1.62A structure of a FRET-optimized Cerulean Fluorescent Protein; X-RAY DIFFRACTION 1.62 Å

	SMTL ID 4en1.1 Ligands GLYCEROL; DI(HYDROXYETHYL)ETHER; ACETATE ION Polypeptides Green fluorescent protein Oligo-state monomer
	SMTL ID 4en1.2 Ligands GLYCEROL; SULFATE ION; DI(HYDROXYETHYL)ETHER Polypeptides Green fluorescent protein Oligo-state monomer