7CAP

Cyclic Lys48-linked triubiquitin

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	Ubiquitin	polymer	76	8576.8	3	UniProt (P0CG47) Pfam (PF00240) In PDB	Homo sapiens (Human)
2	A, B, C	ZINC ION	non-polymer		65.4	6	Chemie (ZN)
3		water	water		18.0	301	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	25730.5
Non-Polymers*	Number of molecules	6
	Total formula weight	392.5
All*	Total formula weight	26122.9

*Water molecules are not included.