SIFTS End-To-End scanning

The aim of this task is as follows:
   - To programmatically detect further unknown discrepancies with SIFTs data
   - To ensure that most SIFTS file is processed in a verifiable manner

Jim suggested the following method:
   For each SIFTs record:
      * retrieve all UniProt sequences mapping to the record
            jim to provide code to access a local copy of UniProt
            output a fasta alignment for each distinct PDB chain/UniProt mapping: i.e.
            >uniprot|<UniProt ID>/1-end
            ASDASDASDASD
            >pdb|<PDB ID+chainCode>/1-end
            --DAS--ASD--ASD
      * compare all FASTA files with output produced by Fabio’s SIFTs/UniProt mapping script
      * if there are differences - find out why and fix !