cation binding | ion binding | zinc ion binding | transition metal ion binding | metal ion binding
intracellular membrane-bounded organelle | cell | nuclear lumen | intracellular organelle | protein-containing complex | nucleoplasm | ribonucleoprotein complex | spliceosomal complex | membrane-bounded organelle | nucleus | organelle | membrane-enclosed lumen | U12-type spliceosomal complex | intracellular