1R5P

Crystal Structure Analysis of KaiB from PCC7120

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 oscillation regulator	polymer	108	12291.2	2	UniProt (Q8YT41) Pfam (PF07689)	Nostoc sp.	KaiB
2	C, D (A, B)	water	water		18.0	67	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	24582.5
All*	Total formula weight	24582.5

*Water molecules are not included.