title: [Membrane proteins of chloroplasts of intact and TMV-infected tobacco plants].
abstract: The effects of viral infection on the membrane proteins from tobacco plant chloroplasts differing in their stability for TMV infection were studied. It was shown that the changes in the chloroplasts of labile and resistant tobacco varieties are oppositely directed. The data from amino-acid analysis, SH-group determination and infrared spectra of the membrane proteins of the resistant variety are indicative of conformational changes caused by disruption of the hydrogen bonds, which stabilize the protein, by changes in aggregability, etc. due to infection and metabolic disturbances in the infected cell. The conformational changes in the chloroplasts of the stable variety are adaptive and affect the biological activity, enzymatic and immunological properties and energy metabolism of the chloroplasts.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D002736:Chloroplasts / Q000378:metabolism*; D008565:Membrane Proteins / Q000378:metabolism*; D008970:Molecular Weight; D010944:Plants / Q000378:metabolism*; D010947:Plants, Toxic; D011487:Protein Conformation; D014026:Nicotiana / Q000378:metabolism; D014027:Tobacco Mosaic Virus / Q000378:metabolism*
chemical_list: D000596:Amino Acids; D008565:Membrane Proteins
vernacular_title: Membrannye belki khloroplastov zdorovykh i infitsirovannykh VTM rastenii tabaka.