The Intein Database Provides a set of tools that are useful in the intein analysis. These tools also use full in the other applications of sProtein Sequence Analysis.

• ProtSeqFilter- This program removes non-protein characters from text. This program is useful when user wish to remove digits and blank spaces from a sequence to make it suitable for other applications and analysis.
• ProtSeq Molecular Weight Calculator - This programs accepts a protein sequence and calculates the molecular weight. You can append copies of commonly used epitopes and fusion proteins using the supplied list. Use Protein Molecular Weight Calculator when you wish to predict the location of a protein of interest on a gel in relation to a set of protein standards.
• Protein Pattern Finder - This programs accepts one or more sequences along with a search pattern and returns the number and positions of sites that match the pattern.
• Protein Status displayer- Thios program returns the number of occurrences of each residue in the sequence you enter. Percentage totals are also given for each residue, and for certain groups of residues, allowing you to quickly compare the results obtained for different sequences.
• ProtSeq Pattern Search Against The intein database - This program accepts Protein sequence and simply matches a query sequence to the all sequence entries in the database.