view article
Figure 1
The nonproline cis-peptide between Arg187 and Arg188 of ApePCNA1. (a) Overall structure of the ApePCNA1 monomer shown as a cartoon model, colored in a rainbow gradient from the N-terminus (blue) to the C-terminus (red). (b) Stereo pair of a close-up view showing the Fo − Fc omit electron-density map (contoured at 2.5σ) for the unique nonproline cis-peptide bond identified between Arg187 and Arg188. All structural figures were prepared using PyMOL (Schrödinger).

Journal logoSTRUCTURAL BIOLOGY
COMMUNICATIONS
ISSN: 2053-230X
Volume 82| Part 6| June 2026| Pages 216-221
https://doi.org/10.1107/S2053230X26003687
Follow Acta Cryst. F
Sign up for e-alerts
E-alerts
Follow Acta Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS