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ClustalW (SIB)

ClustalW (SIB)

A web interface at Expasy for ClustalW multiple sequence alignment (MSA) tool. Works with both nucleic acid and protein sequences.


Phylogeny; Sequence analysis; Nucleic acid sites, features and motifs; Nucleic acid structure analysis; Sequence sites, features and motifs


  • Operation: Multiple sequence alignment
  • Input: Clustal; GCG/MSF; GDE; Phylip; PIR
  • Output: ClustalW with character counts; ClustalW; Pearson/FASTA; MSF; NEXUS; PHYLIP; SELEX; STOCKHOLM; VIENNA
  • Software interface: Web user interface
  • Language: -
  • Operating system: Linux; Mac OS X; Microsoft Windows
  • License: GNU Lesser GPL
  • Cost: Free
  • Version name: -
  • Maturity: Mature
  • Credit: -
  • Contact: projects _at_
  • Collection: Clustal


Larkin MA, Blackshields G, Brown NP, Chenna R, McGettigan PA, McWilliam H, Valentin F, Wallace IM, Wilm A, Lopez R, Thompson JD, Gibson TJ, Higgins DG "Clustal W and Clustal X version 2.0."
PMID: 17846036

Download and documentation

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