8OSG

AAA+ motor subunit ChlI of magnesium chelatase, hexamer conformation B

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E...	Magnesium-chelatase subunit ChlI	polymer	380	42125.9	6	UniProt (P58571) Pfam (PF01078) Pfam (PF17863) In PDB	Nostoc sp. PCC 7120 = FACHB-418	Mg-protoporphyrin IX chelatase
2	A, F	ADENOSINE-5'-DIPHOSPHATE	non-polymer		427.2	2	Chemie (ADP)
3	B, C, D, E	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
4	B, C, D, E	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	4	Chemie (ATP)

Sequence modifications

A, B, C, D, E, F: 2 - 374 (UniProt: P58571)

PDB	External Database	Details
Met -5	-	initiating methionine
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag
His 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	252755.6
Non-Polymers*	Number of molecules	10
	Total formula weight	2980.3
All*	Total formula weight	255735.9

*Water molecules are not included.