7DYJ

Crystal Structure of Cyanobacterial Circadian Clock Protein 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 (A, B)	Circadian clock protein kinase KaiC	polymer	519	58072.8	2	UniProt (Q79PF4) Pfam (PF06745)	Synechococcus elongatus (strain PCC 7942 / FACHB-805)
2	C, D, G, H (A, B)	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	4	Chemie (ATP)
3	E, F, I, J (A, B)	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
4	K, L (A, B)	water	water		18.0	56	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	116145.5
Non-Polymers*	Number of molecules	8
	Total formula weight	2125.9
All*	Total formula weight	118271.5

*Water molecules are not included.