1ZIS

Recombinant Lumazine synthase (hexagonal form)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E... (A, B, C, D, E...)	6,7-dimethyl-8-ribityllumazine synthase	polymer	154	16302.6	10	UniProt (P11998) Pfam (PF00885)	Bacillus subtilis	DMRL synthase, Lumazine synthase, Riboflavin synthase beta chain
2	AA, CA, K, M, O... (I, J, A, B, C...)	PHOSPHATE ION	non-polymer		95.0	10	Chemie (PO4)
3	BA, DA, L, N, P... (I, J, A, B, C...)	5-NITRO-6-RIBITYL-AMINO-2,4(1H,3H)-PYRIMIDINEDIONE	non-polymer		306.2	10	Chemie (INI)

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	163025.7
Non-Polymers*	Number of molecules	20
	Total formula weight	4012.0
All*	Total formula weight	167037.7

*Water molecules are not included.