The script mhc1 is written by Eric Martz and is
reproduced in RasTop package with the permission of 
the author. A few modifications from the original were
made to highlight some RasTop specificities.

Discover other scripts by Eirc Martz and learn about
RasMol and other molecular vizualization softwares at 
the RasMol Home Page maintained by Eric Martz
(http://www.umass.edu/microbio/rasmol/index2.htm)