1LK5

Structure of the D-Ribose-5-Phosphate Isomerase from Pyrococcus horikoshii

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 (A, B, C, D)	D-Ribose-5-Phosphate Isomerase	polymer	229	25189.2	4	UniProt (O50083) Pfam (PF06026)	Pyrococcus horikoshii
2	E, F, G, I, J... (A, B, C, D)	CHLORIDE ION	non-polymer		35.5	10	Chemie (CL)
3	H, N (A, C)	SODIUM ION	non-polymer		23.0	2	Chemie (NA)
4	Q, R, S, T (A, B, C, D)	water	water		18.0	644	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	100756.8
Non-Polymers*	Number of molecules	12
	Total formula weight	400.5
All*	Total formula weight	101157.4

*Water molecules are not included.