Figure 5From: Crystal structure of the DNA polymerase III β subunit (β-clamp) from the extremophile Deinococcus radiodurans An image of the blue Drβ -clamp crystals obtained with 4 T-DNA oligo. Pure Drβ-clamp was mixed with purified Cy5-labeled 4 T oligos in a 1:1.1 protein:DNA ratio. Crystallization in 21% PEG 5000 MME, 0.12 M Tris, 3.6% hexanediol, pH 8.0, using the 4 T oligo containing protein solution yielded blue needles and clusters of small blue crystals.Back to article page