Hi Jacob If there’s fresh air between atoms in coot and you can assign the element by eye it’s atomic resolution to me
Probably corresponds to about 1.2A or thereabouts I do however also respect the 0.8A limit used by our chemical crystallography colleagues My two cents... Best wishes Graeme On 11 Jan 2018, at 19:31, Keller, Jacob <kell...@janelia.hhmi.org<mailto:kell...@janelia.hhmi.org>> wrote: Dear Crystallographers, Has there been a consensus as to what is meant by “atomic resolution?” Seems like the term is taken by various practitioners to mean different things. A related question: at what resolution are atoms “visible” using only the data? I have an empirical feeling that this would be around 1.5 Ang Bragg spacings, but on the other hand, one can contour up most maps and see individual atom peaks. I would be interested to hear a more rigorous way to think about this. All the best, Jacob Keller +++++++++++++++++++++++++++++++++++++++++++++++++ Jacob Pearson Keller Research Scientist / Looger Lab HHMI Janelia Research Campus 19700 Helix Dr, Ashburn, VA 20147 (571)209-4000 x3159 +++++++++++++++++++++++++++++++++++++++++++++++++ The content of this email is confidential and intended for the recipient specified in message only. It is strictly forbidden to share any part of this message with any third party, without a written consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future. -- This e-mail and any attachments may contain confidential, copyright and or privileged material, and are for the use of the intended addressee only. If you are not the intended addressee or an authorised recipient of the addressee please notify us of receipt by returning the e-mail and do not use, copy, retain, distribute or disclose the information in or attached to the e-mail. Any opinions expressed within this e-mail are those of the individual and not necessarily of Diamond Light Source Ltd. Diamond Light Source Ltd. cannot guarantee that this e-mail or any attachments are free from viruses and we cannot accept liability for any damage which you may sustain as a result of software viruses which may be transmitted in or with the message. Diamond Light Source Limited (company no. 4375679). Registered in England and Wales with its registered office at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom
