1UAQ

The crystal structure of yeast cytosine deaminase

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)	cytosine deaminase	polymer	158	17530.0	2	UniProt (Q12178) Pfam (PF00383)	Saccharomyces cerevisiae (baker's yeast)
2	C, E (A, B)	ZINC ION	non-polymer		65.4	2	Chemie (ZN)
3	D, F (A, B)	DIHYDROPYRIMIDINE-2,4(1H,3H)-DIONE	non-polymer		114.1	2	Chemie (DUC)
4	G, H (A, B)	water	water		18.0	484	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	35060.0
Non-Polymers*	Number of molecules	4
	Total formula weight	359.0
All*	Total formula weight	35419.1

*Water molecules are not included.