Molecular Target Synopsis
Domains and Structures
Drugs and Clinical Candidates
Ligand Efficiency Plot
Family Cladogram
Interaction Network
Gene Expression
Gene Copy Number Variation
Germline Genetics

MED31 (Q9Y3C7) - Overview - Molecular Target Synopsis


MED31, Mediator of RNA polymerase II transcription subunit 31
UniProt Q9Y3C7

Also Known as MED31_HUMAN, MED31, SOH1

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. 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.

Isoforms / Transcripts (Protein Coding)

Sub-cellular localization

UniProt: MED31 is active in the following subcellular-locations: nucleus.
GO terms: MED31 is active in the following subcellular-locations: core mediator complex, mediator complex, nucleoplasm, ubiquitin ligase complex.

GO terms

Gene Copy Number Variation

In COSMIC - Cell Lines Project MED31 has gain in 0 cell-lines, loss in 4 cell-lines and no signal in 1000 cell-lines. (see details)

Gene Expression

In NCI60, the highest expressing cell lines are: MDA_N, NCI_H226, MDA_MB_435

In Array Express (RNA-seq of 675 commonly used human cancer cell lines), the highest expressing cell lines are: A-375, KYSE-150, G122

In Array Express (RNA-seq of long poly adenylated RNA and long non poly adenylated RNA from ENCODE cell lines), the highest expressing cell lines are: NHLF, HMEC, A549

(see details)

3D Structures

At greater than 35% identity similarity to MED31 there are:
7 structures (9 chains) solved
0 are solved in complex with at least one small molecule ligand

(see details)
Molecular Target 3D Synopsis