Figure 3
From: Hydroxyproline Ring Pucker Causes Frustration of Helix Parameters in the Collagen Triple Helix
Schematic diagram of the chain register for triple-helical GPP-GX.
The 13C-labeled proline is highlighted in red and grey lines indicate inter-chain hydrogen bonds. (a) Normal register with a one residue stagger between chains in the triple helix. (b) One possible misalignment of the chains with a stagger of two residues, causing misregister. Rectangles indicate the two possible helix cross sections: GPP (black dots) or GPO (red dots).
