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Figure 5
The relaxed radially packed cylindrical structure of molecular segments in the overlap region of a fibril model. Proposed cross-sectional structure of a collagen fibril (with a 50 nm radius) consisting of ∼4000 collagen molecules where each dot represents a collagen triplex. The molecular arrangement is based on concentric rings of microfibrils and then energy minimized. Crystalline regions are defined by disordered grain boundaries; the fibril core is relatively poorly ordered. The structure therefore contains regions of static disorder as well as the disorder that is present in the gap region. The size of a fibril may well govern the amount of overall crystallinity present. Modified from Hulmes (2002BB14) with permission from Elsevier Press.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 12| Part 6| October 2005| Pages 751-757
doi:10.1107/S0909049505012306
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