[cctbxbb] Going from a pdb file to an x_ray_structure object

Hi everyone, i'm trying to get an xray.structure object from a pdb file, as i'm interested on using both this and a Miller array coming from a reflection file to calculate correlation coefficients between Fobs and Fcalc. For this purpose, i was searching for something that will do the same as the iotbx.pdb.xray_structure.as_pdb_file but the other way around. Is there such a tool? I've look for a while but as i'm new to all that maybe i missed something. Thanks in advance and my excuses if is a too evident question, Claudia Millán ([email protected]) Institut de Biologia Molecular de Barcelona (IBMB-CSIC) Barcelona, Spain