This page summarizes the contributors to the BioCyc databases and website,
lists data sources from which BioCyc integrates data, and lists third-party computational tools integrated within the BioCyc webiste. These credits do not cover
the EcoCyc project, whose credits are listed here.
Roles: Curation, software development, web site operations
- Peter D. Karp, Bioinformatics Director
- Richard Billington
- Ron Caspi
- Ingrid Keseler
- Anamika Kothari
- Markus Krummenacker
- Peter Midford
- Suzanne Paley
- Pallavi Subhraveti
Macquarie University, Sydney, Australia
- Ian Paulsen
- Amanda Mackie
- Lisa Moore
Special reviewers have evaluated BioCyc for accuracy, comprehensiveness, and
clarity in subject areas related to their expertise and recommended
changes in content and presentation.
- David S. Weiss (University of Iowa): peptidoglycan synthesis in Clostridioides difficile
BioCyc Advisory Board
The BioCyc advisory board advises the project on a variety of matters including
task prioritization, database content, user interface issues, and community outreach.
The committee meets once per year.
Current and former members of the advisory board are listed here.
Sources of Data Integrated into BioCyc
BioCyc incorporates information that was obtained from several sources.
BioCyc publications describe the integration of data from these sources in more
detail. Those sources are as follows.
- Most BioCyc genomes are obtained from the NCBI RefSeq database.
- BioCyc taxonomy information is obtained from the NCBI Taxonomy Database.
- The ExplorEnz database ---
downloaded data includes the Enzyme Nomenclature
system that classifies enzymatically catalyzed reactions.
- Gene essentiality data are obtained from the OGEE database and from individual publications.
- BioCyc chemical structures are obtained from multiple sources including ChEBI.
- PubMed -- Many literature citations within BioCyc are obtained from PubMed.
- UniProt Gene Ontology data -- We regularly integrate Gene
Ontology annotations from UniProt into BioCyc. These data are
combined with internal Gene Ontology terms curated by BioCyc,
- If BioCyc gene G already has GO term T, we do not add to G the annotations from UniProt to the
same term (unless they differ in Evidence Code, Db-Reference, or With field)
- If UniProt contains term T1 for gene G, and BioCyc already contains term
T2 for G, and T1 is an Is-A parent of T2 in the GO hierarchy,
and the only annotations for T1 have evidence code IEA,
and for all of these T1 annotations, there are also annotations on T2 with evidence code IEA and the same Db-Reference and With fields,
then we do not add term T1 to BioCyc for G.
In other words, if a less specific term T1 only has computational evidence that is duplicated by annotations to a more specific term T2, we leave away T1.
- UniProt protein feature data -- Protein feature information from UniProt is periodically
loaded into BioCyc. UniProt protein feature data are imported into BioCyc using
the following criteria:
- If the sequence data for the UniProt protein and the BioCyc protein do not
match for the region or residues of a protein feature, then the feature is not loaded.
- If a protein feature of the same type and location already exists for a
BioCyc protein, then the UniProt protein feature is not imported.
- UniProt protein features related to topological domains, non-terminal
residues, non-consecutive residues, and secondary structure are excluded.
- UniProt protein features of type 'Chain' which span the entire length of
the protein are excluded.
Data extracted from UniProt is copyright of the
and subject to the
Creative Commons Attribution (CC BY 4.0) License
and the disclaimers at
The original data is available from
Third Party Software Tools Integrated into BioCyc
Outside software tools used within the BioCyc website include the following.