3VDR

Crystal structure of D-3-hydroxybutyrate dehydrogenase, prepared in the presence of the substrate D-3-hydroxybutyrate and NAD(+)

Replaces:  3EEW

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 (A, B, C, D)	D-3-hydroxybutyrate dehydrogenase	polymer	260	27118.9	4	UniProt (D0VWQ0) Pfam (PF00106)	Alcaligenes faecalis
2	E, K (A, B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3	F, L, U (A, B, D)	CHLORIDE ION	non-polymer		35.5	3	Chemie (CL)
4	G, M, Q, V (A, B, C, D)	NICOTINAMIDE-ADENINE-DINUCLEOTIDE	non-polymer		663.4	4	Chemie (NAD)
5	H, N, R, W (A, B, C, D)	1,4-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE	non-polymer		665.4	4	Chemie (NAI)
6	I, O, S, X (A, B, C, D)	(3R)-3-hydroxybutanoic acid	non-polymer		104.1	4	Chemie (3HR)
7	J, P, T, Y (A, B, C, D)	ACETOACETIC ACID	non-polymer		102.1	4	Chemie (AAE)
8	AA, BA, CA, Z (B, C, D, A)	water	water		18.0	244	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	108475.8
Non-Polymers*	Number of molecules	21
	Total formula weight	6326.8
All*	Total formula weight	114802.5

*Water molecules are not included.