SMART
SMART (a Simple Modular Architecture Research Tool) is an online tool which allows the identification of <a href="Protein domain">protein domains</a> and the analysis of domain architecture.
You may use either a <a href="Uniprot sequence identifier">Uniprot</a>/<a href="Ensembl sequence identifier">Ensembl sequence identifier</a> (ID) / <a href="Accession number">accession number</a> (ACC) or the <a href="Protein">protein</a> sequence itself to perform the SMART analysis service.
Using the accession number or the name of a known protein domain, SMART will allow you to search a particular domain, and give you a detailed description of this domain.
Here is a link to the homepage of the site: <a href="http://smart.embl-heidelberg.de/">http://smart.embl-heidelberg.de/</a>
More information about the site, and further literature relating to its use can be found here: <a href="http://smart.embl-heidelberg.de/help/smart_about.shtml">http://smart.embl-heidelberg.de/help/smart_about.shtml</a>
NB: This online tool is extremely useful (and expected to be used) when completing the bioinformatics module in stage 2 (CMB2005)