Reactome: A Curated Pathway Database
THIS SITE IS USED FOR CURATION AND TESTING
IT IS NOT STABLE, IS LINKED TO AN INCOMPLETE DATA SET, AND IS NOT MONITORED FOR PERFORMANCE. WE STRONGLY RECOMMEND THE USE OF OUR PUBLIC SITE

Query author contributions in Reactome

Reactome depends on collaboration between our curation team and outside experts to assemble and peer-review its pathway modules. The integration of ORCID within Reactome enables us to meet a key challenge with authoring, curating and reviewing biological information by incentivizing and crediting the external experts that contribute their expertise and time to the Reactome curation process. More information is available at ORCID and Reactome.

If you have an ORCID ID that is not listed on this page, please forward this information to us and we will update your Reactome pathway records.

Name Email address

Details on Person UniProt:Q9NWA0 MED9

Class:IdReferenceGeneProduct:237105
_chainChangeLoginitiator methionine:1 added on Fri February 6 2015;chain:2-146 added on Fri February 6 2015;initiator methionine:1 for 237105 removed on Fri Nov 03 2023;initiator methionine: for 237105 added on Fri Nov 03 2023;initiator methionine: for 237105 removed on Fri Aug 15 2025;initiator methionine:1 for 237105 added on Fri Aug 15 2025
_displayNameUniProt:Q9NWA0 MED9
_timestamp2025-08-15 21:46:40
chaininitiator methionine:1
chain:2-146
checksum24CDB7CBDFD36D1A
commentFUNCTION Component of the Mediator complex, a coactivator involved in the regulated transcription of nearly all RNA polymerase II-dependent genes. Mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymerase II transcription machinery. Mediator is recruited to promoters by direct interactions with regulatory proteins and serves as a scaffold for the assembly of a functional preinitiation complex with RNA polymerase II and the general transcription factors.SUBUNIT Component of the Mediator complex, which is composed of MED1, MED4, MED6, MED7, MED8, MED9, MED10, MED11, MED12, MED13, MED13L, MED14, MED15, MED16, MED17, MED18, MED19, MED20, MED21, MED22, MED23, MED24, MED25, MED26, MED27, MED29, MED30, MED31, CCNC, CDK8 and CDC2L6/CDK11. The MED12, MED13, CCNC and CDK8 subunits form a distinct module termed the CDK8 module. Mediator containing the CDK8 module is less active than Mediator lacking this module in supporting transcriptional activation. Individual preparations of the Mediator complex lacking one or more distinct subunits have been variously termed ARC, CRSP, DRIP, PC2, SMCC and TRAP.INTERACTION Belongs to the Mediator complex subunit 9 family.
created[InstanceEdit:217385] Schmidt, EE, 2008-03-27 06:23:53
descriptionrecommendedName: Mediator of RNA polymerase II transcription subunit 9 alternativeName: Mediator complex subunit 9
geneNameMED9
MED25
identifierQ9NWA0
isSequenceChangedFALSE
keyword3D-structure
Acetylation
Activator
Coiled coil
Nucleus
Phosphoprotein
Proteomics identification
Reference proteome
Transcription
Transcription regulation
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
nameMED9
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8962134] ENSEMBL:ENSG00000141026 MED9 [Homo sapiens]
secondaryIdentifierMED9_HUMAN
sequenceLength146
species[Species:48887] Homo sapiens
(referenceEntity)[EntityWithAccessionedSequence:556804] MED9 [nucleoplasm] [Homo sapiens]
[Change default viewing format]
No pathways have been reviewed or authored by UniProt:Q9NWA0 MED9 (237105)