Cited by 5,833Bioinformatics and Genomic NetworksGenomics and Phylogenetic StudiesMicrobial Metabolic Engineering and Bioproduction

KEGG for taxonomy-based analysis of pathways and genomes

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Kanehisa, Minoru, Furumichi, Miho, Sato, Yoko, Kawashima, Masayuki, Ishiguro-Watanabe, Mari·2023·Nucleic Acids Research

Abstract

KEGG (https://www.kegg.jp) is a manually curated database resource integrating various biological objects categorized into systems, genomic, chemical and health information. Each object (database entry) is identified by the KEGG identifier (kid), which generally takes the form of a prefix followed by a five-digit number, and can be retrieved by appending /entry/kid in the URL. The KEGG pathway map viewer, the Brite hierarchy viewer and the newly released KEGG genome browser can be launched by appending /pathway/kid, /brite/kid and /genome/kid, respectively, in the URL. Together with an improved annotation procedure for KO (KEGG Orthology) assignment, an increasing number of eukaryotic genomes have been included in KEGG for better representation of organisms in the taxonomic tree. Multiple taxonomy files are generated for classification of KEGG organisms and viruses, and the Brite hierarchy viewer is used for taxonomy mapping, a variant of Brite mapping in the new KEGG Mapper suite. The taxonomy mapping enables analysis of, for example, how functional links of genes in the pathway and physical links of genes on the chromosome are conserved among organism groups.

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Crossref · 10.1093/nar/gkac963

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  • Data leakage has a significant impact, and Kapoor and Narayanan describe it as a reproducibility crisis in ML science.

    “Data leakage has a significant impact, and Kapoor and Narayanan describe it as a reproducibility crisis in ML science (76).”

    From Artificial Intelligence for Drug Discovery: Are We There Yet? (2024) · cites this paper as [76]

    The Introduction discusses KEGG as a manually created model in contrast to machine-learning models, but does not discuss data leakage or reproducibility. Searches for Kapoor and Narayanan, data leakage, and a machine-learning reproducibility crisis found no relevant passage in our copy. (LLM, conf=0.78)

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  • In their analysis, data leakage was detected in 15 of the 20 subject areas associated with biology or medicine.

    “In their analysis, data leakage was detected in 15 of the 20 subject areas associated with biology or medicine.”

    From Artificial Intelligence for Drug Discovery: Are We There Yet? (2024) · cites this paper as [76]

    The Introduction describes KEGG’s taxonomy-based analysis of pathways and genomes, not an analysis of data leakage. Searches for “data leakage” and “15 of the 20 subject areas” found no passage reporting the claimed result. The cited paper’s copy therefore does not verify the sentence. (LLM, conf=0.76)

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Authors
Kanehisa, M., Furumichi, M., Sato, Y., Kawashima, M., & Ishiguro-Watanabe, M.
Affiliations
  • Kyoto University (JP)
  • Fujitsu (Japan) (JP)
  • Network Support Co. Ltd., Hakata-ku , Fukuoka 812-0011, Japan
  • Institute of Medical Science, The University of Tokyo (JP)
Corresponding author
Kanehisa, Minoru
Venue
Nucleic Acids Research
Published
2022-10-27
Volume
51
Issue
D1
Pages
D587-D592
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W4307425304
Cited by
5,833
References
12
Citations by year
2026: 911 · 2025: 1421 · 2024: 1899 · 2023: 1560 · 2022: 39 · 2019: 2
FWCI
461.30
Type
journal article
Language
en
Open access
Locations
  • Nucleic Acids Research (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion)
  • Kyoto University Research Information Repository (Kyoto University) (submittedVersion, cc-by-nc)
Funders
Japan Science and Technology Agency
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
Keywords
KEGG, pathway maps, genome annotation, KEGG Orthology, eukaryotic genomes, viruses, genome browser
MeSH terms
Databases, Factual, Genome, Genomics, Databases, Genetic

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