<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_1_1447234058886_24429" dir="ltr"><span id="yui_3_16_0_1_1447234058886_24551">We have 1.5A resolution data for a heterodimeric protein with linked A and B chains. Phenix MR has produced a promising solution. We would now like to perform an initial refinement using Phenix with the A chain and B chain individually treated as rigid bodies.</span></div><div id="yui_3_16_0_1_1447234058886_24429" dir="ltr"><span id="yui_3_16_0_1_1447234058886_24615">Is this possible with Phenix and if so how? </span></div><div></div><div id="yui_3_16_0_1_1447234058886_24441"> </div><div class="signature" id="yui_3_16_0_1_1447234058886_24433">Rex Palmer<br>http://www.bbk.ac.uk/biology/our-staff/emeritus-staff<br>http://www.springer.com/978-1-4614-3954-7</div></div></body></html>