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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 101 to 200, in pages of 100, sorted by symbol for reading. The order carries no ranking.

Genes Reactome places in this human pathway, page 2 of 26
GeneANAPC15AuthorityHGNC:24531Mapping file id25906 NCBI fileEvidenceTAS
GeneANAPC16AuthorityHGNC:26976Mapping file id119504 NCBI fileEvidenceTAS
GeneANAPC2AuthorityHGNC:19989Mapping file id29882 NCBI fileEvidenceTAS
GeneANAPC4AuthorityHGNC:19990Mapping file id29945 NCBI fileEvidenceTAS
GeneANAPC5AuthorityHGNC:15713Mapping file id51433 NCBI fileEvidenceTAS
GeneANAPC7AuthorityHGNC:17380Mapping file id51434 NCBI fileEvidenceTAS
GeneANO1AuthorityHGNC:21625Mapping file id55107 NCBI fileEvidenceTAS
GeneANO10AuthorityHGNC:25519Mapping file id55129 NCBI fileEvidenceTAS
GeneANO2AuthorityHGNC:1183Mapping file id57101 NCBI fileEvidenceTAS
GeneANO3AuthorityHGNC:14004Mapping file id63982 NCBI fileEvidenceTAS
GeneANO4AuthorityHGNC:23837Mapping file id121601 NCBI fileEvidenceTAS
GeneANO5AuthorityHGNC:27337Mapping file id203859 NCBI fileEvidenceTAS
GeneANO6AuthorityHGNC:25240Mapping file id196527 NCBI fileEvidenceTAS
GeneANO7AuthorityHGNC:31677Mapping file id50636 NCBI fileEvidenceTAS
GeneANO8AuthorityHGNC:29329Mapping file id57719 NCBI fileEvidenceTAS
GeneANO9AuthorityHGNC:20679Mapping file id338440 NCBI fileEvidenceTAS
GeneANTXR1AuthorityHGNC:21014Mapping file id84168 NCBI fileEvidenceTAS
GeneANTXR2AuthorityHGNC:21732Mapping file id118429 NCBI fileEvidenceTAS
GeneAP1B1AuthorityHGNC:554Mapping file id162 NCBI fileEvidenceTAS
GeneAP1G1AuthorityHGNC:555Mapping file id164 NCBI fileEvidenceTAS
GeneAP1M1AuthorityHGNC:13667Mapping file id8907 NCBI fileEvidenceTAS
GeneAP1M2AuthorityHGNC:558Mapping file id10053 NCBI fileEvidenceTAS
GeneAP1S1AuthorityHGNC:559Mapping file id1174 NCBI fileEvidenceTAS
GeneAP1S2AuthorityHGNC:560Mapping file id8905 NCBI fileEvidenceTAS
GeneAP1S3AuthorityHGNC:18971Mapping file id130340 NCBI fileEvidenceTAS
GeneAP2A1AuthorityHGNC:561Mapping file id160 NCBI fileEvidenceTAS
GeneAP2A2AuthorityHGNC:562Mapping file id161 NCBI fileEvidenceTAS
GeneAP2B1AuthorityHGNC:563Mapping file id163 NCBI fileEvidenceTAS
GeneAP2M1AuthorityHGNC:564Mapping file id1173 NCBI fileEvidenceTAS
GeneAP2S1AuthorityHGNC:565Mapping file id1175 NCBI fileEvidenceTAS
GeneAP3B1AuthorityHGNC:566Mapping file id8546 NCBI fileEvidenceTAS
GeneAPBB1IPAuthorityHGNC:17379Mapping file id54518 NCBI fileEvidenceTAS
GeneAPCAuthorityHGNC:583Mapping file id324 NCBI fileEvidenceTAS
GeneAPH1AAuthorityHGNC:29509Mapping file id51107 NCBI fileEvidenceTAS
GeneAPH1BAuthorityHGNC:24080Mapping file id83464 NCBI fileEvidenceTAS
GeneAPOA1AuthorityHGNC:600Mapping file id335 NCBI fileEvidenceTAS
GeneAPOBEC3GAuthorityHGNC:17357Mapping file id60489 NCBI fileEvidenceTAS
GeneAPPAuthorityHGNC:620Mapping file id351 NCBI fileEvidenceTAS
GeneAPRTAuthorityHGNC:626Mapping file id353 NCBI fileEvidenceTAS
GeneAQRAuthorityHGNC:29513Mapping file id9716 NCBI fileEvidenceTAS
GeneARAFAuthorityHGNC:646Mapping file id369 NCBI fileEvidenceTAS
GeneAREGAuthorityHGNC:651Mapping file id374 NCBI fileEvidenceTAS
GeneARF1AuthorityHGNC:652Mapping file id375 NCBI fileEvidenceTAS
GeneARG1AuthorityHGNC:663Mapping file id383 NCBI fileEvidenceTAS
GeneARID4AAuthorityHGNC:9885Mapping file id5926 NCBI fileEvidenceTAS
GeneARID4BAuthorityHGNC:15550Mapping file id51742 NCBI fileEvidenceTAS
GeneARIH1AuthorityHGNC:689Mapping file id25820 NCBI fileEvidenceTAS
GeneARPC1AAuthorityHGNC:703Mapping file id10552 NCBI fileEvidenceIEA, TAS
GeneARPC1BAuthorityHGNC:704Mapping file id10095 NCBI fileEvidenceIEA, TAS
GeneARPC2AuthorityHGNC:705Mapping file id10109 NCBI fileEvidenceIEA, TAS
GeneARPC3AuthorityHGNC:706Mapping file id10094 NCBI fileEvidenceIEA, TAS
GeneARPC4AuthorityHGNC:707Mapping file id10093 NCBI fileEvidenceIEA, TAS
GeneARPC5AuthorityHGNC:708Mapping file id10092 NCBI fileEvidenceIEA, TAS
GeneARRB1AuthorityHGNC:711Mapping file id408 NCBI fileEvidenceTAS
GeneARRB2AuthorityHGNC:712Mapping file id409 NCBI fileEvidenceTAS
GeneARSBAuthorityHGNC:714Mapping file id411 NCBI fileEvidenceTAS
GeneASH2LAuthorityHGNC:744Mapping file id9070 NCBI fileEvidenceTAS
GeneASLAuthorityHGNC:746Mapping file id435 NCBI fileEvidenceTAS
GeneASS1AuthorityHGNC:758Mapping file id445 NCBI fileEvidenceTAS
GeneATG14AuthorityHGNC:19962Mapping file id22863 NCBI fileEvidenceTAS
GeneATG7AuthorityHGNC:16935Mapping file id10533 NCBI fileEvidenceTAS
GeneATICAuthorityHGNC:794Mapping file id471 NCBI fileEvidenceTAS
GeneATL2AuthorityHGNC:24047Mapping file id64225 NCBI fileEvidenceTAS
GeneATMAuthorityHGNC:795Mapping file id472 NCBI fileEvidenceTAS
GeneATP1A1AuthorityHGNC:799Mapping file id476 NCBI fileEvidenceTAS
GeneATP1A2AuthorityHGNC:800Mapping file id477 NCBI fileEvidenceTAS
GeneATP1A3AuthorityHGNC:801Mapping file id478 NCBI fileEvidenceTAS
GeneATP1A4AuthorityHGNC:14073Mapping file id480 NCBI fileEvidenceTAS
GeneATP1B1AuthorityHGNC:804Mapping file id481 NCBI fileEvidenceTAS
GeneATP1B2AuthorityHGNC:805Mapping file id482 NCBI fileEvidenceTAS
GeneATP1B3AuthorityHGNC:806Mapping file id483 NCBI fileEvidenceTAS
GeneATP6V1HAuthorityHGNC:18303Mapping file id51606 NCBI fileEvidenceTAS
GeneATRAuthorityHGNC:882Mapping file id545 NCBI fileEvidenceTAS
GeneATRIPAuthorityHGNC:33499Mapping file id84126 NCBI fileEvidenceTAS
GeneATRXAuthorityHGNC:886Mapping file id546 NCBI fileEvidenceTAS
GeneAUHAuthorityHGNC:890Mapping file id549 NCBI fileEvidenceTAS
GeneAUP1AuthorityHGNC:891Mapping file id550 NCBI fileEvidenceTAS
GeneAVPAuthorityHGNC:894Mapping file id551 NCBI fileEvidenceTAS
GeneAVPR1AAuthorityHGNC:895Mapping file id552 NCBI fileEvidenceTAS
GeneAVPR1BAuthorityHGNC:896Mapping file id553 NCBI fileEvidenceTAS
GeneAVPR2AuthorityHGNC:897Mapping file id554 NCBI fileEvidenceTAS
GeneAXIN1AuthorityHGNC:903Mapping file id8312 NCBI fileEvidenceTAS
GeneAXLAuthorityHGNC:905Mapping file id558 NCBI fileEvidenceTAS
GeneB2MAuthorityHGNC:914Mapping file id567 NCBI fileEvidenceTAS
GeneB3GALT6AuthorityHGNC:17978Mapping file id126792 NCBI fileEvidenceTAS
GeneB3GAT3AuthorityHGNC:923Mapping file id26229 NCBI fileEvidenceTAS
GeneB3GLCTAuthorityHGNC:20207Mapping file id145173 NCBI fileEvidenceTAS
GeneB4GALT1AuthorityHGNC:924Mapping file id2683 NCBI fileEvidenceTAS
GeneB4GALT7AuthorityHGNC:930Mapping file id11285 NCBI fileEvidenceTAS
GeneB4GAT1AuthorityHGNC:15685Mapping file id11041 NCBI fileEvidenceTAS
GeneBADAuthorityHGNC:936Mapping file id572 NCBI fileEvidenceTAS
GeneBAG2AuthorityHGNC:938Mapping file id9532 NCBI fileEvidenceTAS
GeneBAG4AuthorityHGNC:940Mapping file id9530 NCBI fileEvidenceTAS
GeneBAIAP2AuthorityHGNC:947Mapping file id10458 NCBI fileEvidenceIEA, TAS
GeneBANF1AuthorityHGNC:17397Mapping file id8815 NCBI fileEvidenceTAS
GeneBARD1AuthorityHGNC:952Mapping file id580 NCBI fileEvidenceTAS
GeneBCANAuthorityHGNC:23059Mapping file id63827 NCBI fileEvidenceTAS
GeneBCAP31AuthorityHGNC:16695Mapping file id10134 NCBI fileEvidenceTAS
GeneBCAS2AuthorityHGNC:975Mapping file id10286 NCBI fileEvidenceTAS
GeneBCKDHAAuthorityHGNC:986Mapping file id593 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.