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Pathway Human Homo sapiens

Disease

R-HSA-1643685 in Reactome release 97: a top-level pathway, with 2,550 genes placed in it by the mapping files and 12 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; neither of the other two lists holds it. 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 2,550 genes in this human pathway; showing 701 to 800, in pages of 100, sorted by symbol for reading. The order carries no ranking.

Genes Reactome places in this human pathway, page 8 of 26
GeneGNAI3AuthorityHGNC:4387Mapping file id2773 NCBI fileEvidenceIEA
GeneGNASAuthorityHGNC:4392Mapping file id2778 NCBI fileEvidenceIEA, TAS
GeneGNAT3AuthorityHGNC:22800Mapping file id346562 NCBI fileEvidenceIEA
GeneGNAZAuthorityHGNC:4395Mapping file id2781 NCBI fileEvidenceIEA
GeneGNB1AuthorityHGNC:4396Mapping file id2782 NCBI fileEvidenceTAS
GeneGNB2AuthorityHGNC:4398Mapping file id2783 NCBI fileEvidenceTAS
GeneGNB3AuthorityHGNC:4400Mapping file id2784 NCBI fileEvidenceTAS
GeneGNB4AuthorityHGNC:20731Mapping file id59345 NCBI fileEvidenceTAS
GeneGNB5AuthorityHGNC:4401Mapping file id10681 NCBI fileEvidenceTAS
GeneGNEAuthorityHGNC:23657Mapping file id10020 NCBI fileEvidenceTAS
GeneGNG10AuthorityHGNC:4402Mapping file id2790 NCBI fileEvidenceTAS
GeneGNG11AuthorityHGNC:4403Mapping file id2791 NCBI fileEvidenceTAS
GeneGNG12AuthorityHGNC:19663Mapping file id55970 NCBI fileEvidenceTAS
GeneGNG13AuthorityHGNC:14131Mapping file id51764 NCBI fileEvidenceTAS
GeneGNG2AuthorityHGNC:4404Mapping file id54331 NCBI fileEvidenceTAS
GeneGNG3AuthorityHGNC:4405Mapping file id2785 NCBI fileEvidenceTAS
GeneGNG4AuthorityHGNC:4407Mapping file id2786 NCBI fileEvidenceTAS
GeneGNG5AuthorityHGNC:4408Mapping file id2787 NCBI fileEvidenceTAS
GeneGNG7AuthorityHGNC:4410Mapping file id2788 NCBI fileEvidenceTAS
GeneGNG8AuthorityHGNC:19664Mapping file id94235 NCBI fileEvidenceTAS
GeneGNGT1AuthorityHGNC:4411Mapping file id2792 NCBI fileEvidenceTAS
GeneGNGT2AuthorityHGNC:4412Mapping file id2793 NCBI fileEvidenceTAS
GeneGNSAuthorityHGNC:4422Mapping file id2799 NCBI fileEvidenceTAS
GeneGOLGA2AuthorityHGNC:4425Mapping file id2801 NCBI fileEvidenceIEA
GeneGOLGA4AuthorityHGNC:4427Mapping file id2803 NCBI fileEvidenceTAS
GeneGOLGA7AuthorityHGNC:24876Mapping file id51125 NCBI fileEvidenceTAS
GeneGOLGB1AuthorityHGNC:4429Mapping file id2804 NCBI fileEvidenceIEA, TAS
GeneGP1BAAuthorityHGNC:4439Mapping file id2811 NCBI fileEvidenceTAS
GeneGP1BBAuthorityHGNC:4440Mapping file id2812 NCBI fileEvidenceTAS
GeneGP5AuthorityHGNC:4443Mapping file id2814 NCBI fileEvidenceTAS
GeneGP9AuthorityHGNC:4444Mapping file id2815 NCBI fileEvidenceTAS
GeneGPC1AuthorityHGNC:4449Mapping file id2817 NCBI fileEvidenceIEA, TAS
GeneGPC2AuthorityHGNC:4450Mapping file id221914 NCBI fileEvidenceIEA, TAS
GeneGPC3AuthorityHGNC:4451Mapping file id2719 NCBI fileEvidenceIEA, TAS
GeneGPC4AuthorityHGNC:4452Mapping file id2239 NCBI fileEvidenceIEA, TAS
GeneGPC5AuthorityHGNC:4453Mapping file id2262 NCBI fileEvidenceIEA, TAS
GeneGPC6AuthorityHGNC:4454Mapping file id10082 NCBI fileEvidenceIEA, TAS
GeneGPKOWAuthorityHGNC:30677Mapping file id27238 NCBI fileEvidenceTAS
GeneGPS2AuthorityHGNC:4550Mapping file id2874 NCBI fileEvidenceIEA, TAS
GeneGRB2AuthorityHGNC:4566Mapping file id2885 NCBI fileEvidenceIEA, TAS
GeneGRPEL1AuthorityHGNC:19696Mapping file id80273 NCBI fileEvidenceTAS
GeneGRSF1AuthorityHGNC:4610Mapping file id2926 NCBI fileEvidenceTAS
GeneGSDMDAuthorityHGNC:25697Mapping file id79792 NCBI fileEvidenceTAS
GeneGSDMEAuthorityHGNC:2810Mapping file id1687 NCBI fileEvidenceTAS
GeneGSK3AAuthorityHGNC:4616Mapping file id2931 NCBI fileEvidenceTAS
GeneGSK3BAuthorityHGNC:4617Mapping file id2932 NCBI fileEvidenceTAS
GeneGSSAuthorityHGNC:4624Mapping file id2937 NCBI fileEvidenceTAS
GeneGTF2A1AuthorityHGNC:4646Mapping file id2957 NCBI fileEvidenceIEA
GeneGTF2A2AuthorityHGNC:4647Mapping file id2958 NCBI fileEvidenceIEA
GeneGTF2BAuthorityHGNC:4648Mapping file id2959 NCBI fileEvidenceIEA
GeneGTF2E1AuthorityHGNC:4650Mapping file id2960 NCBI fileEvidenceIEA
GeneGTF2E2AuthorityHGNC:4651Mapping file id2961 NCBI fileEvidenceIEA
GeneGTF2F1AuthorityHGNC:4652Mapping file id2962 NCBI fileEvidenceIEA, TAS
GeneGTF2F2AuthorityHGNC:4653Mapping file id2963 NCBI fileEvidenceIEA, TAS
GeneGTF2H1AuthorityHGNC:4655Mapping file id2965 NCBI fileEvidenceIEA
GeneGTF2H2AuthorityHGNC:4656Mapping file id2966 NCBI fileEvidenceIEA
GeneGTF2H3AuthorityHGNC:4657Mapping file id2967 NCBI fileEvidenceIEA
GeneGTF2H4AuthorityHGNC:4658Mapping file id2968 NCBI fileEvidenceIEA
GeneGTF2H5AuthorityHGNC:21157Mapping file id404672 NCBI fileEvidenceIEA
GeneGUCY2CAuthorityHGNC:4688Mapping file id2984 NCBI fileEvidenceTAS
GeneGUSBAuthorityHGNC:4696Mapping file id2990 NCBI fileEvidenceTAS
GeneGYG1AuthorityHGNC:4699Mapping file id2992 NCBI fileEvidenceTAS
GeneGYG2AuthorityHGNC:4700Mapping file id8908 NCBI fileEvidenceTAS
GeneGYS1AuthorityHGNC:4706Mapping file id2997 NCBI fileEvidenceTAS
GeneGYS2AuthorityHGNC:4707Mapping file id2998 NCBI fileEvidenceTAS
GeneGZMBAuthorityHGNC:4709Mapping file id3002 NCBI fileEvidenceTAS
GeneH2AB1AuthorityHGNC:22516Mapping file id474382 NCBI fileEvidenceTAS
GeneH2AC1AuthorityHGNC:18729Mapping file id221613 NCBI fileEvidenceTAS
GeneH2AC11AuthorityHGNC:4737Mapping file id8969 NCBI fileEvidenceTAS
GeneH2AC12AuthorityHGNC:13671Mapping file id85235 NCBI fileEvidenceTAS
GeneH2AC13AuthorityHGNC:4725Mapping file id8329 NCBI fileEvidenceTAS
GeneH2AC14AuthorityHGNC:4727Mapping file id8331 NCBI fileEvidenceTAS
GeneH2AC15AuthorityHGNC:4726Mapping file id8330 NCBI fileEvidenceTAS
GeneH2AC16AuthorityHGNC:4730Mapping file id8332 NCBI fileEvidenceTAS
GeneH2AC17AuthorityHGNC:4735Mapping file id8336 NCBI fileEvidenceTAS
GeneH2AC18AuthorityHGNC:4736Mapping file id8337 NCBI fileEvidenceTAS
GeneH2AC19AuthorityHGNC:29668Mapping file id723790 NCBI fileEvidenceTAS
GeneH2AC20AuthorityHGNC:4738Mapping file id8338 NCBI fileEvidenceTAS
GeneH2AC21AuthorityHGNC:20508Mapping file id317772 NCBI fileEvidenceTAS
GeneH2AC25AuthorityHGNC:20507Mapping file id92815 NCBI fileEvidenceTAS
GeneH2AC4AuthorityHGNC:4734Mapping file id8335 NCBI fileEvidenceTAS
GeneH2AC6AuthorityHGNC:4733Mapping file id8334 NCBI fileEvidenceTAS
GeneH2AC7AuthorityHGNC:4729Mapping file id3013 NCBI fileEvidenceTAS
GeneH2AC8AuthorityHGNC:4724Mapping file id3012 NCBI fileEvidenceTAS
GeneH2AJAuthorityHGNC:14456Mapping file id55766 NCBI fileEvidenceTAS
GeneH2AXAuthorityHGNC:4739Mapping file id3014 NCBI fileEvidenceTAS
GeneH2AZ2AuthorityHGNC:20664Mapping file id94239 NCBI fileEvidenceTAS
GeneH2BC1AuthorityHGNC:18730Mapping file id255626 NCBI fileEvidenceTAS
GeneH2BC10AuthorityHGNC:4756Mapping file id8346 NCBI fileEvidenceTAS
GeneH2BC11AuthorityHGNC:4761Mapping file id8970 NCBI fileEvidenceTAS
GeneH2BC12AuthorityHGNC:13954Mapping file id85236 NCBI fileEvidenceTAS
GeneH2BC12LAuthorityHGNC:4762Mapping file id54145 NCBI fileEvidenceTAS
GeneH2BC13AuthorityHGNC:4748Mapping file id8340 NCBI fileEvidenceTAS
GeneH2BC14AuthorityHGNC:4750Mapping file id8342 NCBI fileEvidenceTAS
GeneH2BC15AuthorityHGNC:4749Mapping file id8341 NCBI fileEvidenceTAS
GeneH2BC17AuthorityHGNC:4758Mapping file id8348 NCBI fileEvidenceTAS
GeneH2BC18AuthorityHGNC:24700Mapping file id440689 NCBI fileEvidenceTAS
GeneH2BC21AuthorityHGNC:4760Mapping file id8349 NCBI fileEvidenceTAS
GeneH2BC26AuthorityHGNC:20514Mapping file id128312 NCBI fileEvidenceTAS
GeneH2BC3AuthorityHGNC:4751Mapping file id3018 NCBI fileEvidenceTAS

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.