The GTPase Ran and karyopherins help regulate transport into and out of this structure, in which Cajal bodies are found.
Speckles in this structure contain high amounts of snRNP ("snurp") proteins. The GTPase Ran and karyopherins help regulate transport into and out of this structure, in which Cajal bodies are found. Alpha-solenoid and beta-propeller folds are found in pores on this structure's namesake double membrane, which is continuous with the rough endoplasmic reticulum. Mature red blood cells lack this structure, which contains a smaller organelle that is the site of ribosome synthesis. For 10 points, name this structure that houses the cell's DNA.
Speckles in this structure contain high amounts of snRNP ("snurp") proteins.
cell nucleus [prompt on nucleolus if the buzz is on "Cajal bodies"]