1XTU

Sulfolobus solfataricus uracil phosphoribosyltransferase in complex with uridine 5'-monophosphate (UMP) and cytidine 5'-triphosphate (CTP)

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...	Probable uracil phosphoribosyltransferase	polymer	216	24179.3	8	UniProt (Q980Q4) Pfam (PF14681) In PDB	Sulfolobus solfataricus	UMP pyrophosphorylase, UPRTase
2	A, B, C, D, E...	URIDINE-5'-MONOPHOSPHATE	non-polymer		324.2	8	Chemie (U5P)
3	A, C, D, E, F...	CYTIDINE-5'-TRIPHOSPHATE	non-polymer		483.2	8	Chemie (CTP)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	193434.8
Non-Polymers*	Number of molecules	16
	Total formula weight	6458.7
All*	Total formula weight	199893.5

*Water molecules are not included.