1DS5

DIMERIC CRYSTAL STRUCTURE OF THE ALPHA SUBUNIT IN COMPLEX WITH TWO BETA PEPTIDES MIMICKING THE ARCHITECTURE OF THE TETRAMERIC PROTEIN KINASE CK2 HOLOENZYME.

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	CASEIN KINASE, ALPHA CHAIN	polymer	332	39291.2	4	UniProt (P28523) Pfam (PF00069) In PDB	Zea mays	CK2
2	E, F, G, H	CASEIN KINASE, BETA CHAIN	polymer	23	2766.2	4	UniProt (P67870) In PDB		CK2
3	A, B, C, D	ADENOSINE MONOPHOSPHATE	non-polymer		347.2	4	Chemie (AMP)
4	B, D	MAGNESIUM ION	non-polymer		24.3	4	Chemie (MG)
5		water	water		18.0	337	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	168229.6
Non-Polymers*	Number of molecules	8
	Total formula weight	1486.1
All*	Total formula weight	169715.7

*Water molecules are not included.