3VPS

Structure of a novel NAD dependent-NDP-hexosamine 5,6-dehydratase, TunA, involved in tunicamycin biosynthesis

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)	NAD-dependent epimerase/dehydratase	polymer	321	35182.8	2	UniProt (E5KJ94) Pfam (PF01370)	Streptomyces chartreusis	TunA
2	C, E (A, B)	URIDINE-DIPHOSPHATE-N-ACETYLGLUCOSAMINE	non-polymer		607.4	2	Chemie (UD1)
3	D, F (A, B)	NICOTINAMIDE-ADENINE-DINUCLEOTIDE	non-polymer		663.4	2	Chemie (NAD)
4	G, H (A, B)	water	water		18.0	219	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	70365.6
Non-Polymers*	Number of molecules	4
	Total formula weight	2541.6
All*	Total formula weight	72907.2

*Water molecules are not included.