6IFI

Crystal Structure of the Apo form of CMP-N-acetylneuraminate Synthetase from Vibrio cholerae

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)	CMP-N-acetylneuraminate Synthetase	polymer	251	28473.4	2		Vibrio cholerae
2	C, D (A, B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3	E, F (A, B)	water	water		18.0	66	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	56946.9
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	57027.1

*Water molecules are not included.