1VPA

Crystal structure of 2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase (TM1393) from Thermotoga maritima at 2.67 A resolution

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	234	26870.9	2	UniProt (Q9X1B3) Pfam (PF01128) In PDB	Thermotoga maritima	4-diphosphocytidyl-2C-methyl-D-erythritol synthase, MEP cytidylyltransferase, MCT
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)
4	A, B	ACETIC ACID	non-polymer		60.1	2	Chemie (ACY)
5		water	water		18.0	119	Chemie (HOH)

Sequence modifications

A, B: 1 - 222 (UniProt: Q9X1B3)

PDB	External Database	Details
Met -11	-	expression tag
Gly -10	-	expression tag
Ser -9	-	expression tag
Asp -8	-	expression tag
Lys -7	-	expression tag
Ile -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	53741.9
Non-Polymers*	Number of molecules	6
	Total formula weight	1135.0
All*	Total formula weight	54876.9

*Water molecules are not included.