1I9A

STRUCTURAL STUDIES OF CHOLESTEROL BIOSYNTHESIS: MEVALONATE 5-DIPHOSPHATE DECARBOXYLASE AND ISOPENTENYL DIPHOSPHATE ISOMERASE

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)	ISOPENTENYL-DIPHOSPHATE DELTA-ISOMERASE	polymer	182	20718.8	2	UniProt (Q46822) Pfam (PF00293)	Escherichia coli	DIMETHYLALLYL DIPHOSPHATE DELTA ISOMERASE
2	C, D (A, B)	MANGANESE (II) ION	non-polymer		54.9	2	Chemie (MN)
3	E, F (A, B)	water	water		18.0	261	Chemie (HOH)

Sequence modifications

A, B: 1 - 182 (UniProt: Q46822)

PDB	External Database	Details
Mse 137	Met 137	modified residue
Mse 162	Met 162	modified residue
Mse 164	Met 164	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	41437.6
Non-Polymers*	Number of molecules	2
	Total formula weight	109.9
All*	Total formula weight	41547.5

*Water molecules are not included.