Congratulations!
I think you are now looking for additional crystallographic and
non-crystallographic symmetry, because finding 40 particles in arbitrary
positions and orientations is going to be brutal.
I wouldn’t take the cell and point group assignment from XDS at face value.
Rather I
Use Zanuda to see whether the space group is actually a higher one—looks like a
and c axes are pretty similar, and beta might be 120, suggesting a threefold.
Otherwise it’s a pretty large beta. I wonder what the largest beta ever seen in
the pdb is?
JPK
From: CCP4 bulletin board
Hi Roger,
First, sigma is a relative measure. If sigma is very low, e.g. since your map
contains 80% solvent, 3 sigma may correspond to the same absolute value e.g. in
electrons/Å3 as 1 sigma in a standard map, so I would not be worried about that.
However, an Rfree of 0.45 and a large
