1EM8

Crystal structure of chi and psi subunit heterodimer from DNA POL III

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	DNA POLYMERASE III CHI SUBUNIT	polymer	147	16653.7	2	UniProt (P28905) Pfam (PF04364) In PDB	Escherichia coli
2	B, D	DNA POLYMERASE III PSI SUBUNIT	polymer	112	12203.8	2	UniProt (P28632) Pfam (PF03603) In PDB	Escherichia coli
3		water	water		18.0	256	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	57715.2
All*	Total formula weight	57715.2

*Water molecules are not included.