Other Sites
Name of Image: Satellite Tobacco Mosaic Virus Structure
MIX #: 0004366
NIX #: 0004366 MSFC-0004366
Date of Image: 2000-05-01
Category: Microgravity

Full Description: The structure of the Satellite Tobacco Mosaic Viurus (STMV)--one of the smallest viruses known--has been successfully reduced using STMV crystals grown aboard the Space Shuttle in 1992 and 1994. The STMV crystals were up to 30 times the volume of any seen in the laboratory. At the time they gave the best resolution data ever obtained on any virus crystal. STMV is a small icosahedral plant virus, consisting of a protein shell made up of 60 identical protein subunits of molecular weight 17,500. Particularly noteworthy is the fact that, in contrast to the crystals grown on Earth, the crystals grown under microgravity conditions were visually perfect, with no striations or clumping of crystals. Furthermore, the x-ray diffraction data obtained from the space-grown crystals was of a much higher quality than the best data available at that time from ground-based crystals. This stylized ribbon model shows the protein coat in white and the nucleic acid in yellow. STMV is used because it is a simple protein to work with; studies are unrelated to tobacco. Credit: Dr. Alex McPherson, University of California at Irvin.
(MRPO) MRD/SPD Discipline(s): Biotechnology
(MRPO) Subject Type: Science
Keywords: Protein Crystal Growth, Satellite Tobacco Mosaic Virus, STMV, McPherson
MSFC Negative Number: 0004366
Reference Number: MSFC-75-SA-4105-2C
n/a n/a
Image Information
Resolution Format Width
Thumbnail jpg 100 100 72
Medium JPG 640 480 72
Large JPG 1140 900 300
( Copyright Notification )
MiX Search Home NASA - National Aeronautics and Space Administration Benefits from NASA Benefits from NASA International Space Station International Space Station Space Shuttle Projects Space Shuttle Projects Space Transportation Space Transportation Around Marshall Around Marshall History History Science Science MSFC MSFC NASA NASA NiX NiX News Room News Room Hot Links Hot Links Contacts Contacts Privacy Statement Privacy Statement MiX Home
Gallery Contact: Raymond T. Downward     Webmaster: Susanna Litkenhous