How to query for all the nitrogen coordinates in pdb file?
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I was trying to extract Nitrogen coordinates from ubiquitin protein. I have the 1UBQ.pdb file from http://rcsb.org/pdb/home/home.do website. I have done the following.
pdb1 ='/home/devanandt/Documents/VMD/1UBQ.pdb';
x=pdbread(pdb1)
y=x.Model.Atom
'y' variable gives 1x602 struct array with many fields including the co-ordinates X,Y,Z. There are 76 residues in this protein and so 76 nitrogens. How to extract (X,Y,Z) data separately to an array?
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