1UL3

Crystal Structure of PII from Synechocystis sp. PCC 6803

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 (A, B, C, D)	Nitrogen regulatory protein P-II	polymer	112	12415.4	4	UniProt (Q55247) Pfam (PF00543)	Synechocystis sp.	PII signal transducing protein
2	E, H (A, C)	GLYCEROL	non-polymer		92.1	2	Chemie (GOL)
3	F, G (B, C)	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4	I, J, K, L (A, B, C, D)	water	water		18.0	212	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	49661.5
Non-Polymers*	Number of molecules	4
	Total formula weight	264.3
All*	Total formula weight	49925.8

*Water molecules are not included.