2IGB

Crystal Structure of PyrR, The Regulator Of The Pyrimidine Biosynthetic Operon In Bacillus caldolyticus, UMP-bound form

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	PyrR bifunctional protein	polymer	179	19967.1	2	UniProt (P41007) Pfam (PF00156)	Bacillus caldolyticus	Pyrimidine operon regulatory protein, Uracil phosphoribosyltransferase, UPRTase
2	C, E (A, B)	URIDINE-5'-MONOPHOSPHATE	non-polymer		324.2	2	Chemie (U5P)
3	D, F, G, H, I... (A, B)	1,2-ETHANEDIOL	non-polymer		62.1	6	Chemie (EDO)
4	K, L (A, B)	water	water		18.0	286	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	39934.1
Non-Polymers*	Number of molecules	8
	Total formula weight	1020.8
All*	Total formula weight	40954.9

*Water molecules are not included.