4TL8

Crystal structure of N-terminal C1 domain of KaiC

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, E...	Circadian clock protein kinase KaiC	polymer	253	28379.2	6	UniProt (Q79PF4) Pfam (PF06745) In PDB	Synechococcus elongatus PCC 7942
2	A, B, C, D, E...	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)
3	A, B, C, D, E...	CHLORIDE ION	non-polymer		35.5	6	Chemie (CL)
4	A, B, C, D, E...	PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER	non-polymer		523.2	6	Chemie (AGS)
5		water	water		18.0	932	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	170275.2
Non-Polymers*	Number of molecules	18
	Total formula weight	3498.0
All*	Total formula weight	173773.3

*Water molecules are not included.