MPEG and Other Movie Formats
Index to Course Material
Index to Section 6
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RasMol and Kinemages
There area a number of different 'motion picture' formats on the various types
of computer platforms. The Motion Pictures Experts Group (MPEG) was formed to
define a standard. In this format, the file contains details of which elements
of the picture change from frame to frame. Variation of picture quality allows
some control over the size of the file.
MPEG players exist for various types of computer. Here is a sample.
Other motion-picture formats include QuickTime (QT) and Silicon Graphics Movie
Format (which has a degree of compatibility with QT) and Cinemation (Macs).
Example MPEG movies
Movies are useful for displaying conformational changes in proteins,
protein-ligand docking, and for displaying trajectories of Molecular Dynamics
and Monte Carlo simulations.
(Make sure you have your MPEG player configured as a helper application for your
WWW browser. For Unix systems, the line in your .mailcap file is
something like:
video/mpeg; xterm -T MPEG -e mpeg_play -dither 2x2 -loop %s
|________| |_____________|____________|___________|_______|
| | | | |
MIME type starts an xterm executes doubles plays MPEG in a loop
window titled software frame
'MPEG' ('mpeg_play' dimensions
in this case)
The above assumes you are using the 'mpeg_play' program. This software uses
the 'dither' and 'loop' parameters (and several others)- ignore them if you
want.)
-
Adenylate Kinases- the movie
Clemens Vonrhein & Gerd Schlauderer, Chemistry, University of Freiburg
- The lactoferrin movie on PPS Consultant
Mark Gerstein's Home Page,
Stanford University
-
Molecular Animations at the tech univ of Darmstadt, including
docking of Bovine Pancreatic Trypsin Inhibitor with trypsin/trypsinogen
-
Acetylcholinesterase movie at the Cornell Theory Center
- Richard Gilliland, and Daniel Ripoll, Carlos Faerman
-
Cellobiohydrolase animationsLeif Laaksonen, Lauri Kuutti, Center for Scientific Computing, Otaniemi, Finland
- Barnase unfolding at 80°C using novel water-insertion protocol
(Mark Williams, Michael Knaggs and Julia Goodfellow, in preparation); movies
by Michael Knaggs
protein only (2.3 Mb);
showing newly inserted
water molecules (5.5 Mb)
- Leos Kral's
animation of mRNA Translation, also in other movie formats
(MPEG conversion by PPS Consultant Michael Knaggs
Examples in other formats
Creating MPEG movies
To create an MPEG, you first need to create a series of individual frames.
The procedure by which you do this with molecular graphics software will
depend on the package. It is possible with RasMol, for example.
You then need to use MPEG-encoding software such as
Berkeley Multimedia Research Center's
mpeg_encode. Refer to the MPEG references in the
list of URLs which accompanies this Section of
the course.
Index to Course Material
Index to Section 6
Imagemaps
RasMol and Kinemages
Last updated 18th Mar '96