If I remember for coefficients with FOM and a precise PHI calculated, A =
FOM*cos(phi) B = FOM*sin(phi) C=D=0
If you have a probability curve for PHI. 0 to 360 such as you get from
experimental phasing, A B C D mirror this bimodal curve better ..
On Fri, 9 Feb 2024 at 09:58, Nitin Kulhar <
Dear sir
Thank you for clearing that. I checked back to see that HLC/D are
invariably 0 for all reflections, with the non-zero HLA/B supposedly having
been originated from the probability distribution of phases *calculated* by
phaser. Hopefully, I have not misunderstood it.
Thanks and regards
Hi,
Hendrickson-Lattman coefficients are just a way of storing phase probability
information, and they can come from different sources including atomic models.
Phaser puts in HL coefficients because they could be handy under some
circumstances for combining the phase information from
Dear all
Is anomalous diffraction necessary for determining experimental phases and
the Hendrickson-Lattman coefficients (HLA, HLB, HLC, and HLD)?
MR solution from Phaser 2.8.3 (interfaced in ccp4 8.0.000 suite) seems to
be generating HLA/B/C/D coefficients from an x-ray diffraction dataset.
