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side chain



  1. a chain of noncyclic atoms linked to a benzene ring, or to any cyclic chain compound;
  2. the atoms of an α-amino acid other than the α-carboxyl group, the α-amino group, the α-carbon, and the hydrogen attached to the α-carbon.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.