1. Calreticulin is located in storage compartments associated with the endoplasmic reticulum . 2. There are two types of endoplasmic reticulum : rough and smooth. 3. The endoplasmic reticulum is also part of a protein sorting pathway. 4. Enzymes of the lysosomes are synthesised in the rough endoplasmic reticulum . 5. This causes stress on the endoplasmic reticulum , which releases calcium. 6. Intracellular Ca 2 + storages include mitochondria and the endoplasmic reticulum . 7. A signal peptide directs the nascent protein into the endoplasmic reticulum . 8. It is soon swept into the ventral reticulum by ruminal contractions. 9. This protein localizes to the nuclear envelope and adjacent endoplasmic reticulum . 10. The entire process of viral replication occurs within the endoplasmic reticulum .