Enhancement of MAD/MIR phasing at low resolution and a new procedure for automatic phase extension

Han Pu^{1, 2}, Gu Yuan-Xin¹, Ding Wei^{1, †}, Fan Hai-Fu^{1, ‡}

Electron density maps before (left column) and after (right column) the iterative direct-methods phase extension: (a) 6.80 Å map extends to 3.00 Å map for 3MT5; (b) 6.90 Å map extends to 2.80 Å map for 1LIA. This figure is made in COOT.