Tools
 
  Alignment Analysis
  Databases
  Computational Immunology
  Modelling & 3D-structure     Analysis
  Sequence Manipulation &     Analysis
  Similarity Searches
  View all Tools
 
 Tools    >> Sias
 SIAS  
Sequence Identity And Similarity

Plea for Support

If you've found SIAS useful for your research, please the SECRETARIA GENERAL DE CIENCIA, TECNOLOGIA E INNOVACION OF SPAIN (sgcti@mineco.es, dgi@mineco.es). Thank you.
Your support is crucial to keep the site up and running.

SIAS calculates pairwise sequence identity and similarity from multiple sequence alignments

 

INPUT
MSA
MSA Name (optional):
Paste your alignment (CLUSTAL, FASTA or GCG/PileUp format)

or Upload a file with the alignment in CLUSTAL, FASTA or GCG/PileUp format

 

IDENTITY (ID) & SIMILARITY (SIM) PERCENTAGE
OPTIONS
SIMILARITY AMINO ACID GROUPING
Aromatic: H
Aliphatic: L
Charged positive: H
Charged negative: E
Small:
Polar (Not charged): S
Hydrophobic:
SEQUENCE LENGTH
Length of smallest sequence Length of largest sequence
Mean length of sequences Length of Multiple Sequence Alignment

 

NORMALIZED SIMILARITY SCORE
OPTIONS
Select a matrix:
BLOSUM62
PAM250
GONNET
Select gap penalties:
  • Cost for creating the gap, Po (0-100)
  • Cost for extending the gap, Pe (0-100)

  •     

    Credits & Complaints: Pedro Reche
    Hits since April/2007: Last updated:
    Contact Us    |   Immunomedicine Group    |