transmembrane topology prediction

 Toppred is a program to determine the topology of a transmembrane
 protein based on G. von Heijne algorithm.
 .
 Each sequence from seq data in fasta format is processed, and toppred
 generate the Hydrophobycity profile of the sequence, and the
 corresponding hydrophobycities values in the file sequence-ID.hydro.
 .
 Furthermore, the predicted topologies are represented as png images.
 Each topology is stored in file sequence-ID-number.png
 .
 The hydrophobicity profile is computed using a window formed by a core
 rectangular window of size n, flanked by 2 triangular windows of size q.
 NB rectangular and triangular mean that the ponderation values inside
 those windows are respectively constant and variable.
 .
 This program is a new implementation of the original toppred program,
 based on G. von Heijne algorithm