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Pathway Mouse Mus musculus

Read this first

Every mouse pathway in Reactome is electronically inferred from the curated human one; Reactome's own sentence about that stands beside the record below.

Miscellaneous transport and binding events

R-MMU-5223345 in Reactome release 97: under Transport of small molecules, with 28 genes placed in it by the mapping files and 1 child pathway 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-HSA-5223345 (human), R-RNO-5223345 (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.

Every mouse pathway in Reactome is inferred from the curated human one: We use the set of manually curated human reactions to electronically infer reactions in fourteen evolutionarily divergent eukaryotic species for which high-quality whole-genome sequence data are available, and hence a comprehensive and high-quality set of protein predictions exists. [R11] Reactome's own sentence about what that produces is printed beside the record: The electronically inferred reactions presented in Reactome are thus not data, but hypotheses useful to direct the design of confirmatory experiments. [R11]

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. [R11] Reactome, reactome.org. Computationally inferred events. https://reactome.org/documentation/inferred-events, read 2026-09-09.
  5. [R12] Reactome, reactome.org. Citing us. https://reactome.org/cite, read 2026-09-09.
  6. [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 mouse pathway

The mapping files place 28 genes in this mouse pathway; showing 1 to 28, in pages of 100, sorted by symbol for reading. The order carries no ranking.

Genes Reactome places in this mouse pathway, page 1 of 1
GeneAdd1Authority11518Mapping file id11518 NCBI fileEvidenceIEA
GeneAdd2Authority11519Mapping file id11519 NCBI fileEvidenceIEA
GeneAdd3Authority27360Mapping file id27360 NCBI fileEvidenceIEA
GeneAnkAuthority11732Mapping file id11732 NCBI fileEvidenceIEA
GeneAzgp1Authority12007Mapping file id12007 NCBI fileEvidenceIEA
GeneCsn1s1Authority12990Mapping file id12990 NCBI fileEvidenceIEA
GeneCsn3Authority12994Mapping file id12994 NCBI fileEvidenceIEA
GeneCtnsAuthority83429Mapping file id83429 NCBI fileEvidenceIEA
GeneDmtnAuthority13829Mapping file id13829 NCBI fileEvidenceIEA
GeneLrrc8aAuthority241296Mapping file id241296 NCBI fileEvidenceIEA
GeneLrrc8bAuthority433926Mapping file id433926 NCBI fileEvidenceIEA
GeneLrrc8cAuthority100604Mapping file id100604 NCBI fileEvidenceIEA
GeneLrrc8dAuthority231549Mapping file id231549 NCBI fileEvidenceIEA
GeneLrrc8eAuthority72267Mapping file id72267 NCBI fileEvidenceIEA
GeneMagt1Authority67075Mapping file id67075 NCBI fileEvidenceIEA
GeneMrs2Authority380836Mapping file id380836 NCBI fileEvidenceIEA
GeneNipa1Authority233280Mapping file id233280 NCBI fileEvidenceIEA
GeneNipa2Authority93790Mapping file id93790 NCBI fileEvidenceIEA
GeneNipal1Authority70701Mapping file id70701 NCBI fileEvidenceIEA
GeneNipal2Authority223473Mapping file id223473 NCBI fileEvidenceIEA
GeneNipal3Authority74552Mapping file id74552 NCBI fileEvidenceIEA
GeneNipal4Authority214112Mapping file id214112 NCBI fileEvidenceIEA
GenePipAuthority18716Mapping file id18716 NCBI fileEvidenceIEA
GeneRhagAuthority19743Mapping file id19743 NCBI fileEvidenceIEA
GeneRhbgAuthority58176Mapping file id58176 NCBI fileEvidenceIEA
GeneRhcgAuthority56315Mapping file id56315 NCBI fileEvidenceIEA
GeneSlc66a1Authority212555Mapping file id212555 NCBI fileEvidenceIEA
GeneTusc3Authority80286Mapping file id80286 NCBI fileEvidenceIEA

Evidence codes on this page: IEA, 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: the two files disagree on none of the 87,729 mouse pairs both place.

  • Reactome mapping files, the mouse 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 mouse 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.