Fig. 1: Rev1/DNA/dCTP ternary complex structure.
From: Mechanism of nucleotide discrimination by the translesion synthesis polymerase Rev1

An overall structure (left) and active site closeup (right) of the Rev1/DNA/dCTP ternary complex (PDB:6X6Z). Key protein and DNA residues are shown as gray sticks and labeled. The nucleotide binding (Men) and catalytic (Mec) metals are shown as green spheres.