title: Ribosome crystallization in nuclei of chick embryos.
abstract: Ribosome crystallization within nuclei has been studied in chick embryos with procedures which increase its frequency by various orders of magnitude as compared to previous findings. The extrusion of ribosome microcrystals from nuclei is reported for the first time, and a model for the transfer of ribosomes from nucleus to cytoplasm is proposed.
mesh_terms: D000818:Animals; D002467:Cell Nucleus / Q000648:ultrastructure*; D002642:Chick Embryo; D003460:Crystallization; D008854:Microscopy, Electron; D012270:Ribosomes / Q000648:ultrastructure*; D013696:Temperature