6BDF

2.8 A resolution reconstruction of the Thermoplasma acidophilum 20S proteasome using cryo-electron microscopy

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C, E, G, I...	Proteasome subunit alpha	polymer	233	25829.4	14	UniProt (P25156) Pfam (PF10584) Pfam (PF00227) In PDB	Thermoplasma acidophilum	20S proteasome alpha subunit, Proteasome core protein PsmA
2	B, D, F, H, J...	Proteasome subunit beta	polymer	211	23169.8	14	UniProt (P28061) Pfam (PF00227) In PDB	Thermoplasma acidophilum	20S proteasome beta subunit, Proteasome core protein PsmB
3		water	water		18.0	728	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	28
	Total formula weight	685989.6
All*	Total formula weight	685989.6

*Water molecules are not included.