GenBank: http://www.ncbi.nlm.nih.gov/genbank/
Unigene: http://www.ncbi.nlm.nih.gov/unigene
PCR Designer: http://primer1.soton.ac.uk/primer.html
GenBank BLAST: http://www.ncbi.nlm.nih.gov/BLAST.cgi
Ensembl: http://www.ensembl.org/index.html
Uniprot: http://www.uniprot.org
PeptIdent: http://www.pdg.cnb.uam.es/cursos/BioInfo2004/pages/visualizacion/programas_manuales/spdbv_userguide/us.expasy.org/tools/peptident.html
MultIident: http://web.expasy.org/multiident/
Mascot: http://www.matrixscience.com
ProFound: http://prowl.rockefeller.edu/prowl-cgi/profound.exe
ProteinProspector: http://prospector.ucsf.edu/prospector/mshome.htm
FindPept: http://web.expasy.org/findpept/
