3KVV

Trapping of an oxocarbenium ion intermediate in UP crystals

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...)	Uridine phosphorylase	polymer	253	27189.1	6	UniProt (P12758) Pfam (PF01048)	Escherichia coli	UrdPase, UPase
2	G, J, M, P, S... (A, B, C, D, E...)	5-FLUOROURACIL	non-polymer		130.1	6	Chemie (URF)
3	H, K, N, Q, T... (A, B, C, D, E...)	SULFATE ION	non-polymer		96.1	6	Chemie (SO4)
4	I, L, O, R, U... (A, B, C, D, E...)	1,4-anhydro-D-erythro-pent-1-enitol	non-polymer		132.1	6	Chemie (R2B)
5	AA, BA, CA, DA, Y... (C, D, E, F, A...)	water	water		18.0	698	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	163134.3
Non-Polymers*	Number of molecules	18
	Total formula weight	2149.5
All*	Total formula weight	165283.9

*Water molecules are not included.