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 Tools    >> Sias
 SIAS  
Sequence Identity And Similarity

Plea for Support
If you have found this resource useful for your research, please, tell SPAIN RESEARCH AGENCY (direccion@aei.gob.es, secretaria.general@aei.gob.es) & U.C.M. Research Office (sec.investigacion@ucm.es, vr.investigacion@ucm.es).
Your support is crucial to keep it 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)

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    Credits & Complaints: Pedro Reche
    Hits since April/2008: Last updated:
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