Figure 2From: Crystal structure of the DNA polymerase III β subunit (β-clamp) from the extremophile Deinococcus radiodurans Electron density (in green, contoured at σ = 1.0) around selected Dr β -clamp residues. (A) Loop 23–32 (between α1 and β2) has clearly defined density except for the side chains of Arg20 and Arg25. (B) In loop 144–149 (in grey, between α3 and β11) Glu147 makes contact with Ser26 and Asn28 of a neighbouring clamp molecule.Back to article page