About :
The primary structure of a protein molecule comprises of a linear chain of amino acid residues.
Certain parts of this linear chain are unique in nature and function. They can be classified under different
categories and their roles studied in detail. Two such unique categories are the palindromic sequences and the Single
Amino Acid Repeats (SAARs). SAARs play a major role in the structure, function and evolution of the protein molecule.
In spite of their presence in various protein sequences, palindromes have not yet been investigated in detail. Thus,
to enable complete understanding of these sequences, a computing engine, PPS, has been developed. The users can search
the occurrences of palindromes and SAARs in all the protein sequences available in various databases and can view the
three-dimensional structures (in case if it is available in the known crystal structures deposited to the Protein
Data Bank) using the graphics plug-in Jmol.
