4IJM

Crystal structure of circadian clock protein KaiC A422V mutant

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	512	57644.2	6	UniProt (Q79PF4) Pfam (PF06745) In PDB	Synechococcus elongatus
2	F, A, B, C, D...	MAGNESIUM ION	non-polymer		24.3	7	Chemie (MG)
3	E, F, A, B, C...	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	12	Chemie (ATP)
4	E, F, B, C, D	PHOSPHATE ION	non-polymer		95.0	8	Chemie (PO4)
5		water	water		18.0	397	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F: 14 - 519 (UniProt: Q79PF4)

PDB	External Database	Details
Val 422	Ala 422	engineered mutation
His 520	-	expression tag
His 521	-	expression tag
His 522	-	expression tag
His 523	-	expression tag
His 524	-	expression tag
His 525	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	345865.4
Non-Polymers*	Number of molecules	27
	Total formula weight	7016.1
All*	Total formula weight	352881.5

*Water molecules are not included.