Crystal structure of a secreted insect ferritin reveals a symmetrical arrangement of heavy and light chains.
Hamburger, A.E., West, A.P., Hamburger, Z.A., Hamburger, P., Bjorkman, P.J.(2005) J Mol Biol 349: 558-569
- PubMed: 15896348 
- DOI: 10.1016/j.jmb.2005.03.074
- Primary Citation of Related Structures:  
1Z6O - PubMed Abstract: 
Ferritins are iron storage proteins made of 24 subunits forming a hollow spherical shell. Vertebrate ferritins contain varying ratios of heavy (H) and light (L) chains; however, known ferritin structures include only one type of chain and have octahedral symmetry ...