4I5K

PP2A PR70 Holoenzyme model3_diCa_rcsb.pdb bppnat5_extend.mtz

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)	Serine/threonine-protein phosphatase 2A regulatory subunit B'' subunit alpha	polymer	285	33963.4	2	UniProt (Q06190) Pfam (PF17958) Pfam (PF13499)	Homo sapiens (human)	PP2A subunit B isoform PR72/PR130, PP2A subunit B isoform R3 isoform, PP2A subunit B isoforms B''-PR72/PR130, PP2A subunit B isoforms B72/B130, Serine/threonine-protein phosphatase 2A 72/130 kDa regulatory subunit B
2	C, D, E, F (A, B)	CALCIUM ION	non-polymer		40.1	4	Chemie (CA)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	67926.7
Non-Polymers*	Number of molecules	4
	Total formula weight	160.3
All*	Total formula weight	68087.0

*Water molecules are not included.