Fig. 4
From: Crystal structure of the catalytic domain of HIV-1 restriction factor APOBEC3G in complex with ssDNA
Comparison of CTD2* and A3A recognition of the nucleotide at −1 position. a Interaction of cytidine at −1 position (C−1, blue) with residues of CTD2* (yellow) in the CTD2*–ssDNA complex (this study). b Interaction of thymidine at −1 position (T−1, cyan) with residues of A3A (gray) in the A3A–ssDNA complex (PDB ID: 5KEG). c Superimposition of the CTD2*–ssDNA and A3A–ssDNA complexes showing nucleotides at the −1 position and their interacting residues from both structures
