| UniProt Knowledgebase: | http://expasy.org/sprot/ |
| NCBI: | http://www.ncbi.nlm.nih.gov/ |
| NCBI, PubMed: | http://www.ncbi.nlm.nih.gov/sites/entrez/ |
| SignalP 4.1 Server: | http://www.cbs.dtu.dk/services/SignalP/ |
| SignalP V2.0.b2: | http://www.cbs.dtu.dk/services/SignalP-2.0/ |
| Phobius: | http://phobius.sbc.su.se/ |
| PrediSi: | http://www.predisi.de/ |
| SIGCLEAVE: | http://www.bioinformatics.nl/cgi-bin/emboss/help/sigcleave |
| ANTHEPROT - Signal prediction: | http://antheprot-pbil.ibcp.fr/signal_prediction.html |
| SOSUIsignal: | http://bp.nuap.nagoya-u.ac.jp/sosui/sosuisignal/sosuisignal_submit.html |
| Signal Find Server: | http://signalfind.org/ |
| SPD - Secreted Protein Database: | http://spd.cbi.pku.edu.cn/ |
| SPEPlip: | http://gpcr.biocomp.unibo.it/cgi/predictors/spep/pred_spepcgi.cgi |
| ClustalW: | http://npsa-pbil.ibcp.fr/cgi-bin/npsa_automat.pl?page=npsa_clustalw.html |
| Clustal Omega | http://www.ebi.ac.uk/Tools/clustalw/index.html |
| AliBee - Multiple Alignment: | http://www.genebee.msu.su/services/malign_reduced.html |
| Align: | http://vega.igh.cnrs.fr/bin/align-guess.cgi |
| KALIGN: | http://msa.cgb.ki.se/cgi-bin/msa.cgi |
| CHAOS + DIALIGN: | http://dialign.gobics.de/chaos-dialign-submission |
| MULTALIN: | http://npsa-pbil.ibcp.fr/cgi-bin/npsa_automat.pl?page=npsa_multalin.html |
| SPdb: a signal peptide database: | http://proline.bic.nus.edu.sg/spdb/index.html |
| Signal Recognition Particle Database: | http://genome.ku.dk/resources/srpdb/ |
| General Principles of Membrane Protein | http://blanco.biomol.uci.edu/ |
| ProteinTargeting and Translocation: | http://www.rockefeller.edu/pubinfo/proteintarget.html |
| TCDB Transport Classification Database: | http://www.tcdb.org/ |
| FlyBase Database: | http://flybase.bio.indiana.edu/ |