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ic acid or protein sequence databases for sequences similar to your query sequence or sequence pattern.
  • create, edit, display and analyze multiple sequence alignments
  • determine and display evolutionary phylogenies from multiple sequence alignments
  • recognize terminators, repeats, protein coding regions, and other consensus patterns
  • predict and display optimal and suboptimal RNA secondary structures
  • identify sequence motifs in protein sequences and make predictions about peptide isolation
  • translate nucleic acid sequences into protein sequences and backtranslate protein sequences into nucleic acids.
  • predict optimal primers for PCR reactions

    If you are interested in using GCG, see Using GCG at NIH.


    What is helix?

    The helix systems consist of a cluster of mainframe and supercomputer applications, network and telecommunication facilities at the Division of Computer Research and Technology at NIH. Among other software, the helix systems maintain and support the GCG package and several large nucleotide and protein databases. See the helix web page for information about getting a helix account.


    What is GCG-Lite?

    GCG-Lite is a World Wide Web interface to the more popular utilities within the Genetics Computer Group (GCG) suite of sequence analysis programs. It currently includes