2XWN

Crystal structure of IspD from Mycobacterium tuberculosis in complex with CTP and Mg

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	2-C-METHYL-D-ERYTHRITOL 4-PHOSPHATE CYTIDYLYLTRANSFERASE	polymer	233	24433.8	2	UniProt (P96864) Pfam (PF01128) UniProt (by SIFTS) (P9WKG9) In PDB	MYCOBACTERIUM TUBERCULOSIS	4-DIPHOSPHOCYTIDYL-2C-METHYL-D-ERYTHRITOL SYNTHASE, MEP CYTIDYLYLTRANSFERASE, MCT, ISPD, CDP-ME SYNTHETASE
2	A, B	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
3	A, B	CYTIDINE-5'-TRIPHOSPHATE	non-polymer		483.2	2	Chemie (CTP)

Sequence modifications

A, B: 1 - 229 (UniProt: P96864)

PDB	External Database	Details
His 230	-	expression tag
His 231	-	expression tag
His 232	-	expression tag
His 233	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	48867.6
Non-Polymers*	Number of molecules	4
	Total formula weight	1014.9
All*	Total formula weight	49882.5

*Water molecules are not included.