2XKO

Crystal structure of the complex of NtcA with its transcriptional co- activator PipX

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	GLOBAL NITROGEN REGULATOR	polymer	222	24862.1	2	UniProt (P29283) Pfam (PF00027) Pfam (PF13545) In PDB	SYNECHOCOCCUS ELONGATUS	NTCA
2	C, D	PIPX	polymer	89	10541.0	2	UniProt (Q7X386) Pfam (PF12058) In PDB	SYNECHOCOCCUS ELONGATUS
3	A, B	2-OXOGLUTARIC ACID	non-polymer		146.1	2	Chemie (AKG)
4		water	water		18.0	100	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	70806.1
Non-Polymers*	Number of molecules	2
	Total formula weight	292.2
All*	Total formula weight	71098.3

*Water molecules are not included.