Wednesday, April 4, 2018

Using Bio3D to convert 3 letter amino acid to 1 letter

Bio3D is a package written for the R platform. Details are in thegrantlab.org/bio3d/index.php


library(bio3d, lib.loc = "~/R")
pdb < - read.pdb("File.pdb")
atom.select(pdb,"calpha")$atom   ---- Gives the atom index of all alpha carbons
pdb$atom$resid    -- Gives the residue ID of all atoms

pdb$atom$resid(atom.select(pdb,"calpha")$atom)  --- Combines the two

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