title: Locating protein in membranes.
mesh_terms: D002462:Cell Membrane / Q000032:analysis*; D008055:Lipids / Q000032:analysis; D009186:Myelin Sheath / Q000032:analysis; D010713:Phosphatidylcholines / Q000032:analysis; D011506:Proteins / Q000032:analysis*; D012168:Retinal Pigments / Q000032:analysis; D014961:X-Ray Diffraction
chemical_list: D008055:Lipids; D010713:Phosphatidylcholines; D011506:Proteins; D012168:Retinal Pigments