Before revision:  We reveal systematics in the way how a  cis peptide plane deforms the neighbouring atomic geometry, and we develop a virtual reality based visual methodology that can identify the presence of a  cis peptide plane from the arrangement of atoms in its vicinity.
After revision:  We reveal systematics in the way how a  cis peptide plane deforms the neighbouring atomic geometry, and we develop a virtual reality based visual methodology that can identify the presence of a  cis peptide plane from the arrangement of atoms in its vicinity.