Conserved Domains and Protein Classification
 
 
 
 
How to view the phylogenetic sequence tree for a conserved domain model
 
 

Interactive views of phylogenetic sequence trees for conserved domain models are available in NCBI-curated domains. If your domain of interest has an NCBI-curated model, you can retrieve it in the following way:

  • Search the Conserved Domain Database for your term(s) of interest, e.g., voltage gated chloride channel.

  • Limit your search results to NCBI-curated domains, which include interactive phylogenetic sequence trees, by adding the following criterion to your query at the top of the search results page:    AND cdd[Database],   and press the "Go" button.

  • Click on the accession number of any domain of interest on the search results page to open its CD summary page (example shown below).
  • A low resolution view of the phylogenetic sequence tree is embedded in the Sequence Cluster section of the CD summary page. Press the Zoom in button to view a higher resolution tree within the current browser window, or the Detailed View button to open a new browser window, which contains the higher resolution as well as options to highlight subsets of proteins by domain family tree node.

  • We no longer provide interactive visualization of the phylogenetic sequence tree in the <CDTree program, as support for CDTree has ended.

  • It is also possible to embed a protein query sequence in a conserved domain model's multiple sequence alignment.

Illustration showing how to view the phylogenetic sequence tree of a conserved domain model, using the voltage gated chloride channel domain (cd00400) as an example.

 
 
 
Revised 25 March 2025