Organization and structure are very important within cells and tissues. A protein in the nematode worm C. elegans called ZYG-12 plays a role in both organization and structure within the organism’s gonad. Image above shows gonads in wild-type (left) and zyg-12 mutant (right) worms—nuclei of mutants are irregularly arranged compared with wild-type.
Reference: Kang Zhou, Melissa M. Rolls, David H. Hall, Christian J. Malone, and Wendy Hanna-Rose, 2009. Originally published in Journal of Cell Biology, doi:10.1083/jcb.200902101. Paper can be found here.