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Pathway Human Homo sapiens

Bile acid and bile salt metabolism

R-HSA-194068 in Reactome release 97: under Metabolism of steroids, with 45 genes placed in it by the mapping files and 2 child pathways in the hierarchy.

The same number in the other species

Reactome writes the mouse and rat events it infers from a human pathway under the human number with the species token. A door opens only where that species' own list in this release holds the id: R-MMU-194068 (mouse), R-RNO-194068 (rat). Whether the event was inferred from this one is what the record says.

01The record

Reactome's own record of this pathway

What this tells you

The pathway list, the hierarchy and the genes on this page are read from the files Reactome publishes for Reactome release 97, built into this site on 2026-09-09: the pathway list, the hierarchy relationship file and the two gene mapping files. The record card is the one live read, Reactome's own record of this pathway.

Reactome's download page describes the mapping files: Mapping files link the source database identifier to the lowest level pathway diagram or subset of the pathway, all levels of the pathway hierarchy or database identifier to all reactions. [R13] The gene list here is the all-levels mapping of NCBI Gene ids, filled from the all-levels mapping of Ensembl ids where the NCBI file has no row for a gene; each row names which file it came from by the shape of its source id. Each row carries the evidence codes the file writes for it, as written and unranked, and both where the file writes both; no page of Reactome's documentation the survey read defines the codes, so this page does not expand them. A gene id the identity files do not name is kept as the source's own id with no door rather than turned into a symbol.

On citing what a search finds, Reactome says: It should be remembered that while we strive to contain the most current and accurate data, Reactome should not be used in citations where other primary sources of information are available. [R12] The record card prints the literature Reactome attaches to a curated pathway for that reason. The data are public domain: All data in the Reactome database and files derived from that data are licensed under the Creative Commons Public Domain Dedication (CC0). User may copy, modify, and distribute these data, even for commercial purposes, without asking for permission. Attribution is encouraged but not required. [R10] The pathway illustrations are licensed apart, under CC BY 4.0, and none is shown here.

A gene on this list is one Reactome places in this pathway in this release, and that is all the row says: it does not say the gene is expressed in a tissue or associated with a disease, which are the other two explorers' questions, read from other sources. Reactome's papers of record are [R01] [R02].

  1. [R01] Ragueneau E, Gong C, Sinquin P, Sevilla C, Beavers D, Grentner A, et al. (2026). The Reactome Knowledgebase 2026. Nucleic Acids Research 54:D673-D681. PMID 41251150, doi 10.1093/nar/gkaf1223.
  2. [R02] Milacic M, Beavers D, Conley P, Gong C, Gillespie M, Griss J, et al. (2024). The Reactome Pathway Knowledgebase 2024. Nucleic Acids Research 52:D672-D678. PMID 37941124, doi 10.1093/nar/gkad1025.
  3. [R10] Reactome, reactome.org. License Agreement. https://reactome.org/license, read 2026-09-09.
  4. [R12] Reactome, reactome.org. Citing us. https://reactome.org/cite, read 2026-09-09.
  5. [R13] Reactome, reactome.org. Download. https://reactome.org/download-data, read 2026-09-09.
Reading this pathway's record from Reactome (the pathway record).Still reading. A first read of a pathway can take a while; this page waits up to 35 seconds for it, and its scripts then bring in the panel, or a line saying what did not arrive.

02The genes

Genes Reactome places in this human pathway

The mapping files place 45 genes in this human pathway; showing 1 to 45, in pages of 100, sorted by symbol for reading. The order carries no ranking.

Genes Reactome places in this human pathway, page 1 of 1
GeneABCB11AuthorityHGNC:42Mapping file id8647 NCBI fileEvidenceTAS
GeneABCC3AuthorityHGNC:54Mapping file id8714 NCBI fileEvidenceTAS
GeneABCD3AuthorityHGNC:67Mapping file id5825 NCBI fileEvidenceTAS
GeneACOT8AuthorityHGNC:15919Mapping file id10005 NCBI fileEvidenceTAS
GeneACOX2AuthorityHGNC:120Mapping file id8309 NCBI fileEvidenceTAS
GeneAKR1C1AuthorityHGNC:384Mapping file id1645 NCBI fileEvidenceTAS
GeneAKR1C2AuthorityHGNC:385Mapping file id1646 NCBI fileEvidenceTAS
GeneAKR1C3AuthorityHGNC:386Mapping file id8644 NCBI fileEvidenceTAS
GeneAKR1C4AuthorityHGNC:387Mapping file id1109 NCBI fileEvidenceTAS
GeneAKR1D1AuthorityHGNC:388Mapping file id6718 NCBI fileEvidenceTAS
GeneALBAuthorityHGNC:399Mapping file id213 NCBI fileEvidenceTAS
GeneAMACRAuthorityHGNC:451Mapping file id23600 NCBI fileEvidenceTAS
GeneBAATAuthorityHGNC:932Mapping file id570 NCBI fileEvidenceTAS
GeneCH25HAuthorityHGNC:1907Mapping file id9023 NCBI fileEvidenceTAS
GeneCYP27A1AuthorityHGNC:2605Mapping file id1593 NCBI fileEvidenceTAS
GeneCYP39A1AuthorityHGNC:17449Mapping file id51302 NCBI fileEvidenceTAS
GeneCYP46A1AuthorityHGNC:2641Mapping file id10858 NCBI fileEvidenceTAS
GeneCYP7A1AuthorityHGNC:2651Mapping file id1581 NCBI fileEvidenceTAS
GeneCYP7B1AuthorityHGNC:2652Mapping file id9420 NCBI fileEvidenceTAS
GeneCYP8B1AuthorityHGNC:2653Mapping file id1582 NCBI fileEvidenceTAS
GeneFABP6AuthorityHGNC:3561Mapping file id2172 NCBI fileEvidenceTAS
GeneHSD17B4AuthorityHGNC:5213Mapping file id3295 NCBI fileEvidenceTAS
GeneHSD3B7AuthorityHGNC:18324Mapping file id80270 NCBI fileEvidenceTAS
GeneNCOA1AuthorityHGNC:7668Mapping file id8648 NCBI fileEvidenceTAS
GeneNCOA2AuthorityHGNC:7669Mapping file id10499 NCBI fileEvidenceTAS
GeneNR1H4AuthorityHGNC:7967Mapping file id9971 NCBI fileEvidenceTAS
GeneOSBPAuthorityHGNC:8503Mapping file id5007 NCBI fileEvidenceTAS
GeneOSBPL1AAuthorityHGNC:16398Mapping file id114876 NCBI fileEvidenceTAS
GeneOSBPL2AuthorityHGNC:15761Mapping file id9885 NCBI fileEvidenceTAS
GeneOSBPL3AuthorityHGNC:16370Mapping file id26031 NCBI fileEvidenceTAS
GeneOSBPL6AuthorityHGNC:16388Mapping file id114880 NCBI fileEvidenceTAS
GeneOSBPL7AuthorityHGNC:16387Mapping file id114881 NCBI fileEvidenceTAS
GeneOSBPL9AuthorityHGNC:16386Mapping file id114883 NCBI fileEvidenceTAS
GeneRXRAAuthorityHGNC:10477Mapping file id6256 NCBI fileEvidenceTAS
GeneSCP2AuthorityHGNC:10606Mapping file id6342 NCBI fileEvidenceTAS
GeneSLC10A1AuthorityHGNC:10905Mapping file id6554 NCBI fileEvidenceTAS
GeneSLC10A2AuthorityHGNC:10906Mapping file id6555 NCBI fileEvidenceTAS
GeneSLC27A2AuthorityHGNC:10996Mapping file id11001 NCBI fileEvidenceTAS
GeneSLC27A5AuthorityHGNC:10999Mapping file id10998 NCBI fileEvidenceTAS
GeneSLC51AAuthorityHGNC:29955Mapping file id200931 NCBI fileEvidenceTAS
GeneSLC51BAuthorityHGNC:29956Mapping file id123264 NCBI fileEvidenceTAS
GeneSLCO1A2AuthorityHGNC:10956Mapping file id6579 NCBI fileEvidenceTAS
GeneSLCO1B1AuthorityHGNC:10959Mapping file id10599 NCBI fileEvidenceTAS
GeneSLCO1B3AuthorityHGNC:10961Mapping file id28234 NCBI fileEvidenceTAS
GeneSTARD5AuthorityHGNC:18065Mapping file id80765 NCBI fileEvidenceTAS

Evidence codes on this page: TAS, as the mapping file writes them; a row carrying two was written twice by the file, once under each. The mapping file id says which file placed the gene: an NCBI Gene id from NCBI2Reactome_All_Levels.txt, an Ensembl gene id from Ensembl2Reactome_All_Levels.txt. The two files can disagree about a code, so a row's codes are the one file's view. Measured by this site's build over this release on 2026-09-09: of the 138,908 human pathway-gene pairs both files place, 207 (0.149 per cent, over 47 genes) carry TAS in the Ensembl file where the NCBI rows carry IEA alone.

  • Reactome mapping files, the human rows for this pathway · Reactome release 97 · read · Reactome downloads"NCBI2Reactome_All_Levels.txt" and "Ensembl2Reactome_All_Levels.txt", Reactome, release 97, https://reactome.org/download-data/ (date of access 2026-09-09). Data CC0; attribution encouraged.

03The hierarchy

Parents and children in this release's hierarchy

Reactome's hierarchy is a graph rather than a tree: a pathway can sit under more than one parent, and the gene counts are each pathway's own placements at every level under it, so a parent's count is not the sum of its children's.

  • Reactome, the human pathway list and hierarchy relationship file · Reactome release 97 · read · Reactome downloads"ReactomePathways.txt" and "ReactomePathwaysRelation.txt", Reactome, release 97, https://reactome.org/download-data/ (date of access 2026-09-09). Data CC0; attribution encouraged.