English: The major capsid protein P2 from the bacteriophage PM2, illustrating the double jelly roll fold found in the major capsid proteins of double-stranded DNA viruses of the PRD1-adenovirus lineage. The two distinct jelly roll domains are colored red and blue, with intervening loops and helices colored orange. The topology and connectivity in each jelly roll is identical to that illustrated in File:4oq9 chainA jellyroll.png. The trimeric assembly is illustrated in File:2w0c_trimer.png and the full capsid in File:2w0c_capsid.png.

Rendered from chain H of PDB ID 2W0C:

Abrescia NG, Grimes JM, Kivelä HM, Assenberg R, Sutton GC, Butcher SJ, Bamford JK, Bamford DH, Stuart DI. Insights into virus evolution and membrane biogenesis from the structure of the marine lipid-containing bacteriophage PM2. Molecular cell. 2008 Sep 5;31(5):749-61. DOI 10.1016/j.molcel.2008.06.026.