[phenixbb] the input for atom selection

[Dialing Pretty]

Dear All,

By the Graphics of phenix refine, I want to select all the atoms of the first 2 residues, will you please what I should to input in the "Selection" item? If I want to select all the atoms of both the first 2 residues and the last 2 residues, what should I input?

Suppose I have a chain with 20 amino acids, and as expected the density of the first 2 residues and the last 2 residues are low, by occupancy refinement can I make the conformation of the first 2 residues and the last 2 residues reliable?

Cheers,

Dialing
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