Figure 4
Characterization of fragments 1 and 2 binding to oxidized BpsDsbA by 2D [15N,1H]-HSQC NMR. Chemical shift perturbations (CSPs) resulting from the addition of 2 mM 1 (a) and 1 mM 2 (b) are mapped onto their corresponding complex crystal structures (PDB entry 7luh for 1 and chain A of PDB entry 7luj for 2). CSPs are plotted as a colour gradient from red (CSP = 0.04 p.p.m.) to white (CSP = 0 p.p.m.). Residues with unassigned amides and proline residues are shown in black. Non-shifting residues are shown in grey. N-terminal residues (Ala1–Gly14) were removed for clarity. Blue circles highlight the specific region of interest on the protein. |