pepinfo detects and displays various useful metrics about a protein sequence.

Here is a sample session with pepinfo:

% pepinfo
Plots simple amino acid properties in parallel
Input sequence: sw:opsd_human
Graph type [x11]:
Output file [pepinfo.out]:

Mandatory qualifiers:

[-inseq] (sequence)

Sequence USA.

-graph (xygraph)

Graph type.

[-outfile] (outfile)

Output filename.

Optional qualifiers:

-hwindow (integer)

Window size for hydropathy averaging.

-aaproperties (string)

User-defined amino acid properties

-aahydropathy (string)

User-defined hydropathy data.

Advanced qualifiers:

-[no]generalplot (boolean)

Plot histogram of general properties.

-[no]hydropathyplot (boolean)

Plot graphs of hydropathy