3WGW

Structure of PCNA bound to a small molecule inhibitor

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Proliferating cell nuclear antigen	polymer	261	28795.8	2	UniProt (P12004) Pfam (PF00705) Pfam (PF02747) In PDB	Homo sapiens (human)	PCNA, Cyclin
2	A, B	4-{4-[(2S)-2-amino-3-hydroxypropyl]-2,6-diiodophenoxy}phenol	non-polymer		511.1	3	Chemie (T2B)
3	A, B	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)
4		water	water		18.0	126	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	57591.5
Non-Polymers*	Number of molecules	5
	Total formula weight	1725.4
All*	Total formula weight	59316.9

*Water molecules are not included.