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Pathway Human Homo sapiens

G-protein mediated events

R-HSA-112040 in Reactome release 97: under Opioid Signalling, with 56 genes placed in it by the mapping files and 3 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-112040 (mouse), R-RNO-112040 (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 56 genes in this human pathway; showing 1 to 56, 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
GeneADCY1AuthorityHGNC:232Mapping file id107 NCBI fileEvidenceIEA, TAS
GeneADCY2AuthorityHGNC:233Mapping file id108 NCBI fileEvidenceIEA, TAS
GeneADCY3AuthorityHGNC:234Mapping file id109 NCBI fileEvidenceIEA, TAS
GeneADCY4AuthorityHGNC:235Mapping file id196883 NCBI fileEvidenceIEA, TAS
GeneADCY5AuthorityHGNC:236Mapping file id111 NCBI fileEvidenceIEA, TAS
GeneADCY6AuthorityHGNC:237Mapping file id112 NCBI fileEvidenceIEA, TAS
GeneADCY7AuthorityHGNC:238Mapping file id113 NCBI fileEvidenceIEA, TAS
GeneADCY8AuthorityHGNC:239Mapping file id114 NCBI fileEvidenceIEA, TAS
GeneADCY9AuthorityHGNC:240Mapping file id115 NCBI fileEvidenceIEA, TAS
GeneAHCYL1AuthorityHGNC:344Mapping file id10768 NCBI fileEvidenceIEA
GeneCALM1AuthorityHGNC:1442Mapping file id801 NCBI fileEvidenceIEA, TAS
GeneCALM2AuthorityHGNC:1445Mapping file id805 NCBI fileEvidenceIEA, TAS
GeneCALM3AuthorityHGNC:1449Mapping file id808 NCBI fileEvidenceIEA, TAS
GeneCAMK2AAuthorityHGNC:1460Mapping file id815 NCBI fileEvidenceIEA
GeneCAMK2BAuthorityHGNC:1461Mapping file id816 NCBI fileEvidenceIEA
GeneCAMK2DAuthorityHGNC:1462Mapping file id817 NCBI fileEvidenceIEA
GeneCAMK2GAuthorityHGNC:1463Mapping file id818 NCBI fileEvidenceIEA
GeneCAMK4AuthorityHGNC:1464Mapping file id814 NCBI fileEvidenceIEA, TAS
GeneCAMKK1AuthorityHGNC:1469Mapping file id84254 NCBI fileEvidenceIEA, TAS
GeneCAMKK2AuthorityHGNC:1470Mapping file id10645 NCBI fileEvidenceIEA, TAS
GeneCREB1AuthorityHGNC:2345Mapping file id1385 NCBI fileEvidenceIEA
GeneGNA11AuthorityHGNC:4379Mapping file id2767 NCBI fileEvidenceIEA, TAS
GeneGNA14AuthorityHGNC:4382Mapping file id9630 NCBI fileEvidenceIEA, TAS
GeneGNA15AuthorityHGNC:4383Mapping file id2769 NCBI fileEvidenceIEA, TAS
GeneGNAI1AuthorityHGNC:4384Mapping file id2770 NCBI fileEvidenceIEA, TAS
GeneGNAI2AuthorityHGNC:4385Mapping file id2771 NCBI fileEvidenceIEA, TAS
GeneGNAI3AuthorityHGNC:4387Mapping file id2773 NCBI fileEvidenceIEA, TAS
GeneGNALAuthorityHGNC:4388Mapping file id2774 NCBI fileEvidenceTAS
GeneGNAQAuthorityHGNC:4390Mapping file id2776 NCBI fileEvidenceIEA, TAS
GeneGNAT3AuthorityHGNC:22800Mapping file id346562 NCBI fileEvidenceIEA, TAS
GeneGRK2AuthorityHGNC:289Mapping file id156 NCBI fileEvidenceTAS
GeneITPR1AuthorityHGNC:6180Mapping file id3708 NCBI fileEvidenceIEA
GeneITPR2AuthorityHGNC:6181Mapping file id3709 NCBI fileEvidenceIEA
GeneITPR3AuthorityHGNC:6182Mapping file id3710 NCBI fileEvidenceIEA
GeneKPNA2AuthorityHGNC:6395Mapping file id3838 NCBI fileEvidenceIEA
GeneMAPK1AuthorityHGNC:6871Mapping file id5594 NCBI fileEvidenceTAS
GeneNBEAAuthorityHGNC:7648Mapping file id26960 NCBI fileEvidenceIEA
GenePDE1AAuthorityHGNC:8774Mapping file id5136 NCBI fileEvidenceTAS
GenePDE1BAuthorityHGNC:8775Mapping file id5153 NCBI fileEvidenceTAS
GenePDE1CAuthorityHGNC:8776Mapping file id5137 NCBI fileEvidenceTAS
GenePLA2G4AAuthorityHGNC:9035Mapping file id5321 NCBI fileEvidenceTAS
GenePLCB1AuthorityHGNC:15917Mapping file id23236 NCBI fileEvidenceIEA, TAS
GenePLCB2AuthorityHGNC:9055Mapping file id5330 NCBI fileEvidenceIEA, TAS
GenePLCB3AuthorityHGNC:9056Mapping file id5331 NCBI fileEvidenceIEA, TAS
GenePLCB4AuthorityHGNC:9059Mapping file id5332 NCBI fileEvidenceIEA, TAS
GenePRKACAAuthorityHGNC:9380Mapping file id5566 NCBI fileEvidenceIEA, TAS
GenePRKACBAuthorityHGNC:9381Mapping file id5567 NCBI fileEvidenceIEA, TAS
GenePRKACGAuthorityHGNC:9382Mapping file id5568 NCBI fileEvidenceIEA, TAS
GenePRKAR1AAuthorityHGNC:9388Mapping file id5573 NCBI fileEvidenceTAS
GenePRKAR1BAuthorityHGNC:9390Mapping file id5575 NCBI fileEvidenceTAS
GenePRKAR2AAuthorityHGNC:9391Mapping file id5576 NCBI fileEvidenceIEA, TAS
GenePRKAR2BAuthorityHGNC:9392Mapping file id5577 NCBI fileEvidenceTAS
GenePRKCAAuthorityHGNC:9393Mapping file id5578 NCBI fileEvidenceTAS
GenePRKCDAuthorityHGNC:9399Mapping file id5580 NCBI fileEvidenceTAS
GenePRKCGAuthorityHGNC:9402Mapping file id5582 NCBI fileEvidenceTAS
GenePRKXAuthorityHGNC:9441Mapping file id5613 NCBI fileEvidenceIEA

Evidence codes on this page: IEA, 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.