3Q4K

Structure of a small peptide ligand bound to E.coli DNA sliding clamp

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	DNA polymerase III subunit beta	polymer	366	40630.5	2	UniProt (P0A988) Pfam (PF00712) Pfam (PF02767) Pfam (PF02768) In PDB	Escherichia coli
2	C, D	peptide ligand	polymer	6	735.3	2	BIRD (PRD_001109)
3		water	water		18.0	136	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	82731.6
All*	Total formula weight	82731.6

*Water molecules are not included.