Multiple Assemblies exist for SMTL entry 1b6s
STRUCTURE OF N5-CARBOXYAMINOIMIDAZOLE RIBONUCLEOTIDE SYNTHETASE; X-RAY DIFFRACTION 2.50 Å

	SMTL ID 1b6s.1 Ligands MAGNESIUM ION; ADENOSINE-5'-DIPHOSPHATE Polypeptides PROTEIN (N5-CARBOXYAMINOIMIDAZOLE RIBONUCLEOTIDE SYNTHETASE) Oligo-state homo-dimer
	SMTL ID 1b6s.2 Ligands MAGNESIUM ION; ADENOSINE-5'-DIPHOSPHATE Polypeptides PROTEIN (N5-CARBOXYAMINOIMIDAZOLE RIBONUCLEOTIDE SYNTHETASE) Oligo-state homo-dimer