2OGX

The crystal structure of the molybdenum storage protein from Azotobacter vinelandii loaded with polyoxotungstates (WSto)

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Molybdenum storage protein subunit alpha	polymer	276	29564.4	1	UniProt (P84308) Pfam (PF00696) In PDB	Azotobacter vinelandii	Mo storage protein alpha subunit, MoSto subunit alpha
2	B	Molybdenum storage protein subunit beta	polymer	270	28707.0	1	UniProt (P84253) Pfam (PF00696) In PDB	Azotobacter vinelandii	Mo storage protein subunit beta, MoSto subunit beta
3	A	MAGNESIUM ION	non-polymer		24.3	1	Chemie (MG)
4	A	TRI-TUNGSTEN(VI) OXIDE COMPLEX	non-polymer		759.5	1	Chemie (WO3)
5	A	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	1	Chemie (ATP)
6	B, A	TUNGSTEN ION	non-polymer		183.8	23	Chemie (W)
7	B	PHOSPHATE ION	non-polymer		95.0	2	Chemie (PO4)
8		water	water		18.0	391	Chemie (HOH)

Sequence modifications

A: 2 - 276 (UniProt: P84308)

PDB	External Database	Details
Mse 1	-	initiating methionine
Mse 51	Met 50	modified residue
Mse 119	Met 118	modified residue
Mse 236	Met 235	modified residue

B: 1 - 270 (UniProt: P84253)

PDB	External Database	Details
Mse 13	Met 13	modified residue
Mse 113	Met 113	modified residue
Mse 149	Met 149	modified residue
Mse 156	Met 156	modified residue
Mse 185	Met 185	modified residue
Mse 216	Met 216	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	58271.4
Non-Polymers*	Number of molecules	28
	Total formula weight	5709.3
All*	Total formula weight	63980.7

*Water molecules are not included.