4I2O

The Structure of FixK2 from Bradyrhizobium japonicum

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	FixK2 protein	polymer	243	26925.9	2	UniProt (O69245) Pfam (PF00027) Pfam (PF13545) In PDB	Bradyrhizobium japonicum
2	W	Promoter of fixK2 direct target, fixN, upstream	polymer	30	9416.1	1
3	X	Promoter of fixK2 direct target, fixN, downstream	polymer	30	9028.8	1
4		water	water		18.0	496	Chemie (HOH)

Sequence modifications

A, B: 1 - 232 (UniProt: O69245)

PDB	External Database	Details
Ser 183	Cys 183	engineered mutation
Ala 233	-	expression tag
Ala 234	-	expression tag
Ala 235	-	expression tag
Leu 236	-	expression tag
Glu 237	-	expression tag
His 238	-	expression tag
His 239	-	expression tag
His 240	-	expression tag
His 241	-	expression tag
His 242	-	expression tag
His 243	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	72296.6
All*	Total formula weight	72296.6

*Water molecules are not included.