6A2H:
reference: Architectural roles of Cren7 in folding crenarchaeal chromatin filament., Zhang Z, Zhao M, Chen Y, Wang L, Liu Q, Dong Y, Gong Y, Huang L, Mol Microbiol. 2018 Nov 30. doi: 10.1111/mmi.14173. PMID: 30499242

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).