We gratefully acknowledge the following groups and projects for their freely distributable contributions to the community. Please cite appropriate references for any data or methods you use.

Data in Unison
Ensembl	Ensembl 2005 Hubbard T, et al. Nucleic Acids Res. 33:D447-D453 (Database Issue) (2005). [Full Text] Freely available [License]
GeneOntology.org	Gene Ontology: tool for the unification of biology. The Gene Ontology Consortium. Nature Genet. 25: 25-29 (2000). [PDF] Freely available [License]
HGNC	HUGO Gene Nomenclature Committee (HGNC) Department of Biology, University College London, Wolfson House 4 Stephenson Way, London NW1 2HE, UK http://www.genenames.org/ See Unison Origins for download date.
MINT	MINT: a Molecular INTeraction database Zanzoni A, Montecchi-Palazzi L, Quondam M, Ausiello G, Helmer-Citterich M, Cesareni G FEBS Lett. 513: 135-140 (2002) [PubMed] Freely available for research [License]
Entrez Gene, HomoloGene, Taxonomy	Database resources of the National Center for Biotechnology Information. Wheeler DL, et al. Nucleic Acids Res. 36:D13-21 (2008). [PubMed]
PDB	The Protein Data Bank (PDB) Berman HM, Westbrook J, Feng Z, Gilliland G, Bhat TN, Weissig H, Shindyalov IN, Bourne PE. Nucleic Acids Res. 28: 235-242 (2000). [PubMed] Public domain
Pfam	The Pfam Protein Families Database Bateman A, Coin L, Durbin R, Finn RD, Hollich V, Griffiths-Jones S, Khanna A, Marshall M, Moxon S, Sonnhammer ELL, Studholme DJ, Yeats C, Eddy SR Nucleic Acids Research Database Issue 32:D138-D141 (2004). [PubMed] Freely available [License (GPL)]
SCOP - Structural Classifcation of Proteins	SCOP database in 2004: refinements integrate structure and sequence family data. Andreeva A, Howorth D, Brenner SE, Hubbard TJP, Chothia C, Murzin AG. Nucleic Acid Res. 32:D226-D229 (2004). [PDF] Freely available without license after July 1, 2004 [License]
STRING	STRING 7--recent developments in the integration and prediction of protein interactions. von Mering C, Jensen LJ, Kuhn M, Chaffron S, Doerks T, Krüger B, Snel B, Bork P. Nucleic Acids Res. 35:D358-62 (2006). [PubMed] Sequence data released under Creative Commons Attribution 3.0 License.
UniProt	The Universal Protein Resource (UniProt) Bairoch A, Apweiler R, Wu CH, Barker WC, Boeckmann B, Ferro S, Gasteiger E, Huang H, Lopez R, Magrane M, Martin MJ, Natale DA, O'Donovan C, Redaschi N, Yeh LS. Nucleic Acids Res. 33: D154-159 (2005). [PubMed] Freely distributable after Jan 1, 2005 [License]
Software and algorithms used by Unison
Big-PI GPI prediction	Prediction of potential GPI-modification sites in proprotein sequences Eisenhaber B, Bork P, Eisenhaber F. JMB 292:3, 741-758 (1999).
	The Bioperl toolkit: Perl modules for the life sciences. Stajich JE, Block D, Boulez K, Brenner SE, Chervitz SA, Dagdigian C, Fuellen G, Gilbert JG, Korf I, Lapp H, Lehvaslaiho H, Matsalla C, Mungall CJ, Osborne BI, Pocock MR, Schattner P, Senger M, Stein LD, Stupka E, Wilkinson MD, Birney E. Genome Res. 12(10):1611-8 (2002). [PubMed] Freely available [License (Artistic)]
NCBI	Basic local alignment search tool. Altschul SF, Gish W, Miller W, Myers EW, Lipman DJ. J. Mol. Biol. 215:403-410 (1990). [PubMed]
Disprot VL3H	Predicting intrinsic disorder from amino acid sequence. Obradovic Z, Peng K, Vucetic S, Radivojac P, Brown CJ, Dunker AK. Proteins. 53 Suppl 6:566-72 (2003). [PubMed]
EMBOSS	EMBOSS: The European Molecular Biology Open Software Suite Rice P, Longden I, Bleasby A. Trends in Genetics 16(6): 276-277 (2000). Freely available [License (GPL and LGPL)]
GMAP/PMAP	GMAP: A Genomic Mapping and Alignment Program for mRNA and EST Sequences Wu TD, Watanabe CK. Bioinformatics 31:1869-75 (2005). [Abstract | Manuscript PDF] Freely available [see file `COPYING' in package]
HMMER	Profile Hidden Markov Models. Eddy SR. Bioinformatics, 14:755-763 (1998). [PDF] Freely available [License (GPL)]
JMol	http://jmol.sourcefource.net Freely available [License (GPL)]
Logical Depth HMMer	Accelerated HMMer Freely distributable derived data is identical to Sean Eddy's academic HMMer.
Prospect	Protein threading using PROSPECT: Design and evaluation. Xu Y, Xu D. Proteins: Structure, Function, and Genetics. 40(3):343-54 (2000).
PSIPred	Protein secondary structure prediction based on position-specific scoring matrices. Jones DT. J. Mol. Biol. 292:195-202 (1999). Freely available (Para 8: "...may be made available...if access is granted free of charge...")
PyMOL	The PyMOL Molecular Graphics System DeLano WL. http://www.pymol.org (2002). Freely available [License]
SignalP 3.0	Improved prediction of signal peptides: SignalP 3.0. Bendtsen JD, Nielsen H, von Heijne G, and Brunak S. J. Mol. Biol., 340:783-795 (2004). [PDF]
TMHMM 2.0c	Predicting Transmembrane Protein Topology with a Hidden Markov Model: Application to Complete Genomes. Krogh A, Larsson B, von Heijne G, and Sonnhammer ELL. J. Mol. Biol. 305:567-580 (2001).
Other Software used by Unison
Apache web server	Freely available [License (Apache)]
GIMP	Freely available [License (GPL)
GNOME	Freely available [License (GPL)
GNU/Free Software Foundation tools	Free, of course [License (GPL or LGPL)]
Linux	Freely available [License (GPL)]
OpenOffice	Varies [License]
Perl	Freely available [License (Artistic)]
PostgreSQL	Freely available [License (BSD)]
Support
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