2AWA

Crystal structure of DNA polymerase III, beta chain (EC 2.7.7.7) (np_344555.1) from STREPTOCOCCUS PNEUMONIAE TIGR4 at 2.50 A resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D (A, B, C, D)	DNA polymerase III, beta chain	polymer	390	43763.7	4	UniProt (O06672) Pfam (PF00712) Pfam (PF02767) Pfam (PF02768)	Streptococcus pneumoniae
2	E (A)	GLYCEROL	non-polymer		92.1	1	Chemie (GOL)
3	F, G, H, I (A, B, C, D)	water	water		18.0	251	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 378 (UniProt: O06672)

PDB	External Database	Details
Mse -11	-	insertion
Gly -10	-	expression tag
Ser -9	-	expression tag
Asp -8	-	expression tag
Lys -7	-	expression tag
Ile -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag
Mse 1	Met 1	modified residue
Mse 275	Met 275	modified residue
Mse 369	Met 369	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	175054.8
Non-Polymers*	Number of molecules	1
	Total formula weight	92.1
All*	Total formula weight	175146.9

*Water molecules are not included.