2IX2

Crystal structure of the heterotrimeric PCNA from Sulfolobus solfataricus

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	DNA POLYMERASE SLIDING CLAMP B	polymer	249	27569.7	1	UniProt (P57766) Pfam (PF00705) In PDB	SULFOLOBUS SOLFATARICUS	PROLIFERATING CELL NUCLEAR ANTIGEN HOMOLOG B, PCNA B
2	B	DNA POLYMERASE SLIDING CLAMP C	polymer	245	27461.1	1	UniProt (Q97Z84) Pfam (PF00705) Pfam (PF02747) In PDB	SULFOLOBUS SOLFATARICUS	PROLIFERATING CELL NUCLEAR ANTIGEN HOMOLOG C, PCNA C
3	C	DNA POLYMERASE SLIDING CLAMP A	polymer	259	29384.4	1	UniProt (P57765) Pfam (PF00705) Pfam (PF02747) In PDB	SULFOLOBUS SOLFATARICUS	PROLIFERATING CELL NUCLEAR ANTIGEN HOMOLOG A, PCNA A
4		water	water		18.0	120	Chemie (HOH)

Sequence modifications

C: 1 - 15 (PDB: 2IX2)
C: 16 - 259 (UniProt: P57765)

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	84415.2
All*	Total formula weight	84415.2

*Water molecules are not included.