1L1O

Structure of the human Replication Protein A (RPA) trimerization core

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, D	Replication protein A 14 kDa subunit	polymer	121	13583.7	2	UniProt (P35244) Pfam (PF08661) In PDB	Homo sapiens (human)
2	B, E	Replication protein A 32 kDa subunit	polymer	128	14361.5	2	UniProt (P15927) In PDB	Homo sapiens (human)
3	C, F	Replication protein A 70 kDa DNA-binding subunit	polymer	181	21145.8	2	UniProt (P27694) Pfam (PF08646) In PDB	Homo sapiens (human)
4	C, F	ZINC ION	non-polymer		65.4	2	Chemie (ZN)

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	98182.2
Non-Polymers*	Number of molecules	2
	Total formula weight	130.8
All*	Total formula weight	98313.0

*Water molecules are not included.