Vesicles marked with the COPII ("cop-2")
Proteins targeted for either this structure or the plasma membrane are tagged with the amino acid sequence Y-X-X-phi, where X is any residue and phi is any hydrophobic residue. One protein found here, GAAP, was found in 2009 to reduce the frequency of oscillations of cytosolic calcium concentrations. In plants, hemicelluloses and pectins are created here, and it is location of sphingomyelin synthesis from ceramide. Sulfotransferases sulfate glycosaminoglycans and proteglycans in this structure. Vesicles marked with the COPII ("cop-2") protein transport molecules from endoplasmic reticulum to its cis face. This organelle is composed of flattened discs called cisternae. For 10 points, name this protein-modifying organelle named for an Italian biologist.
Proteins targeted for either this structure or the plasma membrane are tagged with the amino acid sequence Y-X-X-phi, where X is any residue and phi is any hydrophobic residue.
Golgi body [or Golgi apparatus; or Golgi complex]