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Keywords from Image Description:
Hypoxanthineguanine phosphoribosyltransferase BZY. Ribbon diagram of human hypoxanthineguanine phosphoribosyltransferase HGPRT tetramer Units colored from to Cterminal end magnesium ions visible in green Created using accelrys html Accelrys DS Visualizer Pro and GIMP Legend chartreuse Magnesium ions From PDB entry rcsb org