+
Open data
-
Basic information
Entry | Database: PDB / ID: 8trh | ||||||
---|---|---|---|---|---|---|---|
Title | The IDRc bound human core Mediator complex | ||||||
![]() |
| ||||||
![]() | TRANSCRIPTION / Mediator. | ||||||
Function / homology | ![]() positive regulation of T cell extravasation / negative regulation of smooth muscle cell differentiation / CKM complex / enucleate erythrocyte development / regulation of RNA biosynthetic process / positive regulation of type II interferon-mediated signaling pathway / androgen biosynthetic process / positive regulation of G0 to G1 transition / retinal pigment epithelium development / G0 to G1 transition ...positive regulation of T cell extravasation / negative regulation of smooth muscle cell differentiation / CKM complex / enucleate erythrocyte development / regulation of RNA biosynthetic process / positive regulation of type II interferon-mediated signaling pathway / androgen biosynthetic process / positive regulation of G0 to G1 transition / retinal pigment epithelium development / G0 to G1 transition / mammary gland branching involved in thelarche / thyroid hormone receptor signaling pathway / core mediator complex / regulation of vitamin D receptor signaling pathway / nuclear retinoic acid receptor binding / ventricular trabecula myocardium morphogenesis / mediator complex / positive regulation of keratinocyte differentiation / thyroid hormone generation / Generic Transcription Pathway / peroxisome proliferator activated receptor binding / embryonic heart tube development / cellular response to thyroid hormone stimulus / triglyceride homeostasis / positive regulation of hepatocyte proliferation / nuclear vitamin D receptor binding / embryonic hindlimb morphogenesis / nuclear thyroid hormone receptor binding / limb development / lens development in camera-type eye / embryonic hemopoiesis / megakaryocyte development / cellular response to hepatocyte growth factor stimulus / cortical actin cytoskeleton / cellular response to steroid hormone stimulus / positive regulation of intracellular estrogen receptor signaling pathway / histone acetyltransferase binding / epithelial cell proliferation involved in mammary gland duct elongation / LBD domain binding / RSV-host interactions / fat cell differentiation / mammary gland branching involved in pregnancy / skeletal muscle cell differentiation / monocyte differentiation / somatic stem cell population maintenance / general transcription initiation factor binding / blastocyst development / negative regulation of neuron differentiation / hematopoietic stem cell differentiation / positive regulation of transcription initiation by RNA polymerase II / negative regulation of keratinocyte proliferation / ubiquitin ligase complex / nuclear receptor-mediated steroid hormone signaling pathway / embryonic placenta development / animal organ regeneration / erythrocyte development / RNA polymerase II preinitiation complex assembly / negative regulation of fibroblast proliferation / keratinocyte differentiation / : / lactation / Regulation of lipid metabolism by PPARalpha / peroxisome proliferator activated receptor signaling pathway / DNA-directed RNA polymerase activity / cellular response to epidermal growth factor stimulus / BMAL1:CLOCK,NPAS2 activates circadian expression / Activation of gene expression by SREBF (SREBP) / positive regulation of erythrocyte differentiation / cholesterol homeostasis / liver development / nuclear receptor binding / nuclear estrogen receptor binding / positive regulation of transcription elongation by RNA polymerase II / transcription coregulator activity / transcription initiation at RNA polymerase II promoter / promoter-specific chromatin binding / mRNA transcription by RNA polymerase II / Heme signaling / Transcriptional activation of mitochondrial biogenesis / transcription coactivator binding / PPARA activates gene expression / brain development / protein-DNA complex / cell morphogenesis / Cytoprotection by HMOX1 / Nuclear Receptor transcription pathway / chromatin DNA binding / Transcriptional regulation of white adipocyte differentiation / protein import into nucleus / transcription corepressor activity / ubiquitin protein ligase activity / : / actin binding / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / angiogenesis / DNA-binding transcription factor binding / transcription regulator complex / Estrogen-dependent gene expression / transcription by RNA polymerase II / transcription coactivator activity Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.7 Å | ||||||
![]() | Chen, S.F. / Chao, T.C. / Kim, H.J. / Tang, H.C. / Khadka, S. / Li, T. / Murakami, K. / Boyer, T.G. / Tsai, K.L. | ||||||
Funding support | ![]()
| ||||||
![]() | ![]() Title: Structural basis of the human transcriptional Mediator regulated by its dissociable kinase module. Authors: Ti-Chun Chao / Shin-Fu Chen / Hee Jong Kim / Hui-Chi Tang / Hsiang-Ching Tseng / An Xu / Leon Palao / Subash Khadka / Tao Li / Mo-Fan Huang / Dung-Fang Lee / Kenji Murakami / Thomas G Boyer / Kuang-Lei Tsai / ![]() Abstract: The eukaryotic transcriptional Mediator comprises a large core (cMED) and a dissociable CDK8 kinase module (CKM). cMED recruits RNA polymerase II (RNA Pol II) and promotes pre-initiation complex ...The eukaryotic transcriptional Mediator comprises a large core (cMED) and a dissociable CDK8 kinase module (CKM). cMED recruits RNA polymerase II (RNA Pol II) and promotes pre-initiation complex formation in a manner repressed by the CKM through mechanisms presently unknown. Herein, we report cryoelectron microscopy structures of the complete human Mediator and its CKM. The CKM binds to multiple regions on cMED through both MED12 and MED13, including a large intrinsically disordered region (IDR) in the latter. MED12 and MED13 together anchor the CKM to the cMED hook, positioning CDK8 downstream and proximal to the transcription start site. Notably, the MED13 IDR obstructs the recruitment of RNA Pol II/MED26 onto cMED by direct occlusion of their respective binding sites, leading to functional repression of cMED-dependent transcription. Combined with biochemical and functional analyses, these structures provide a conserved mechanistic framework to explain the basis for CKM-mediated repression of cMED function. | ||||||
History |
|
-
Structure visualization
Structure viewer | Molecule: ![]() ![]() |
---|
-
Downloads & links
-
Download
PDBx/mmCIF format | ![]() | 1.4 MB | Display | ![]() |
---|---|---|---|---|
PDB format | ![]() | 1.1 MB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
---|
-Related structure data
Related structure data | ![]() 41580MC ![]() 8tq2C ![]() 8tqcC ![]() 8tqwC M: map data used to model this data C: citing same article ( |
---|---|
Similar structure data | Similarity search - Function & homology ![]() |
-
Links
-
Assembly
Deposited unit | ![]()
|
---|---|
1 |
|
-
Components
+Mediator of RNA polymerase II transcription subunit ... , 25 types, 25 molecules 01234ADFGHIJKNOPQRTVWXdSU
-Protein/peptide / Non-polymers , 2 types, 3 molecules B

#27: Chemical | #7: Protein/peptide | | Mass: 1720.111 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
---|
-Details
Has ligand of interest | Y |
---|---|
Has protein modification | N |
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
Component | Name: The IDRc bound human core Mediator complex / Type: COMPLEX / Entity ID: #1-#26 / Source: NATURAL |
---|---|
Source (natural) | Organism: ![]() |
Buffer solution | pH: 7.9 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Instrument: FEI VITROBOT MARK III / Cryogen name: ETHANE / Humidity: 100 % |
-
Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
---|---|
Microscopy | Model: TFS KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2800 nm / Nominal defocus min: 600 nm |
Image recording | Electron dose: 52 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k) |
-
Processing
CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
---|---|
3D reconstruction | Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 97904 / Symmetry type: POINT |