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<p>Thanks Nigel,</p>
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<p>I am using phenix 1168 but when i type intra_chain = True command with phenix.refine it gives error message as "intra_chain = True is unknown command".
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<p>The actual command i used was " phenix.refine .pdb .mtz .cif intra_chain = True". can you please explain how to resolve it.</p>
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<p>Raj</p>
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