1H9M

Two crystal structures of the cytoplasmic molybdate-binding protein ModG suggest a novel cooperative binding mechanism and provide insights into ligand-binding specificity. PEG-grown form with molybdate bound

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)	MOLYBDENUM-BINDING-PROTEIN	polymer	145	14655.0	2	UniProt (Q44529) Pfam (PF03459)	AZOTOBACTER VINELANDII	MODG
2	C, D, E, F, G... (A, B)	MOLYBDATE ION	non-polymer		159.9	8	Chemie (MOO)
3	K, L (A, B)	water	water		18.0	79	Chemie (HOH)

Sequence modifications

A, B: -3 - -1 (PDB: 1H9M)
A, B: 1 - 142 (UniProt: Q44529)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	29309.9
Non-Polymers*	Number of molecules	8
	Total formula weight	1279.5
All*	Total formula weight	30589.4

*Water molecules are not included.