3ZO9

The structure of Trehalose Synthase (TreS) of Mycobacterium smegmatis

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)	TREHALOSE SYNTHASE/AMYLASE TRES	polymer	593	68272.1	2	UniProt (A0R6E0) Pfam (PF00128) Pfam (PF16657)	MYCOBACTERIUM SMEGMATIS	MALTOSE ALPHA-D-GLUCOSYLTRANSFERASE, MTASE
2	C, D, F, G, I... (A, B)	CHLORIDE ION	non-polymer		35.5	7	Chemie (CL)
3	E, K (A, B)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4	H, M (A, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
5	N, O (A, B)	water	water		18.0	1053	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	136544.3
Non-Polymers*	Number of molecules	11
	Total formula weight	376.9
All*	Total formula weight	136921.2

*Water molecules are not included.