5DA7

monomeric PCNA bound to a small protein inhibitor

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D	DNA polymerase sliding clamp 1, Proliferating cell nuclear antigen	polymer	255	29099.3	2	UniProt (Q5JF32) Pfam (PF00705) Pfam (PF02747) In PDB	Thermococcus kodakarensis (strain ATCC BAA-918 / JCM 12380 / KOD1)	Proliferating cell nuclear antigen homolog 1,PCNA 1
2	B, E	Thermococcales inhibitor of PCNA	polymer	64	7629.9	2	UniProt (Q5JH72) In PDB	Thermococcus kodakarensis (strain ATCC BAA-918 / JCM 12380 / KOD1)
3	A, D, B, E	SULFATE ION	non-polymer		96.1	18	Chemie (SO4)

Sequence modifications

A, D: 1 - 249 (UniProt: Q5JF32)

PDB	External Database	Details
His 250	-	expression tag
His 251	-	expression tag
His 252	-	expression tag
His 253	-	expression tag
His 254	-	expression tag
His 255	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	73458.5
Non-Polymers*	Number of molecules	18
	Total formula weight	1729.1
All*	Total formula weight	75187.7

*Water molecules are not included.