1RK2

E. COLI RIBOKINASE COMPLEXED WITH RIBOSE AND ADP, SOLVED IN SPACE GROUP P212121

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)	RIBOKINASE	polymer	309	32320.4	4	UniProt (P0A9J6) Pfam (PF00294)	Escherichia coli
2	E, I, M, Q (A, B, C, D)	alpha-D-ribofuranose	non-polymer		150.1	4	Chemie (RIB)
3	F, J, N, R (A, B, C, D)	TETRAFLUOROALUMINATE ION	non-polymer		103.0	4	Chemie (ALF)
4	G, K, O, S (A, B, C, D)	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
5	H, L, P, T (A, B, C, D)	ADENOSINE-5'-DIPHOSPHATE	non-polymer		427.2	4	Chemie (ADP)
6	U, V, W, X (A, B, C, D)	water	water		18.0	409	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	129281.6
Non-Polymers*	Number of molecules	16
	Total formula weight	2818.4
All*	Total formula weight	132100.0

*Water molecules are not included.