Figure 3
(a) Residues (highlighted in gold) chosen for single-site mutagenesis to methionine in the β2 hinge. The clathrin-box motif is underlined. (b, c) Mass spectra of the μ2 subunit of native (a) and selenomethionyl (b) `wild-type' βhingeHis6.AP2. The masses of major peaks are shown. (d–g) Final 2mFo − DFc maps in the hinge region (contoured at 0.34 e− Å−3) with overlaid hinge models showing residues mutated to methionine along with selenium sites (shown as gold balls) found in the appropriate data sets, indicating good agreement between the sites and the hinge model. |