4P5A

Crystal structure of a UMP/dUMP methylase PolB from Streptomyces cacaoi bound with 5-Br UMP

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	Thymidylate synthase ThyX	polymer	239	27126.6	4	UniProt (C1IC19) Pfam (PF02511) In PDB	Streptomyces cacaoi subsp. asoensis	TSase
2	A, B, C, D	FLAVIN-ADENINE DINUCLEOTIDE	non-polymer		785.5	4	Chemie (FAD)
3	A, B, C, D	5-BROMO-URIDINE-5'-MONOPHOSPHATE	non-polymer		403.1	4	Chemie (5BU)
4		water	water		18.0	733	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	108506.4
Non-Polymers*	Number of molecules	8
	Total formula weight	4754.5
All*	Total formula weight	113260.9

*Water molecules are not included.