[English] 日本語

- PDB-8t1l: Atomic model of the mammalian mouse Mediator complex with CKM module -
+
Open data
-
Basic information
Entry | Database: PDB / ID: 8t1l | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Atomic model of the mammalian mouse Mediator complex with CKM module | |||||||||
![]() |
| |||||||||
![]() | GENE REGULATION / mouse mediator / CKM module | |||||||||
Function / homology | ![]() positive regulation of T cell extravasation / Nuclear Receptor transcription pathway / CKM complex / negative regulation of smooth muscle cell differentiation / 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 ...positive regulation of T cell extravasation / Nuclear Receptor transcription pathway / CKM complex / negative regulation of smooth muscle cell differentiation / 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 / Regulation of lipid metabolism by PPARalpha / G0 to G1 transition / mammary gland branching involved in thelarche / thyroid hormone receptor signaling pathway / Cytoprotection by HMOX1 / core mediator complex / Estrogen-dependent gene expression / regulation of vitamin D receptor signaling pathway / nuclear retinoic acid receptor binding / positive regulation of hepatocyte proliferation / ventricular trabecula myocardium morphogenesis / mediator complex / positive regulation of keratinocyte differentiation / thyroid hormone generation / camera-type eye development / peroxisome proliferator activated receptor binding / embryonic heart tube development / cellular response to thyroid hormone stimulus / nuclear vitamin D receptor binding / embryonic hindlimb morphogenesis / nuclear thyroid hormone receptor binding / lens development in camera-type eye / limb development / embryonic hemopoiesis / triglyceride homeostasis / mammary gland epithelial cell proliferation / megakaryocyte development / cellular response to hepatocyte growth factor stimulus / cortical actin cytoskeleton / positive regulation of intracellular estrogen receptor signaling pathway / negative regulation of neuron differentiation / LBD domain binding / histone acetyltransferase binding / epithelial cell proliferation involved in mammary gland duct elongation / erythrocyte development / fat cell differentiation / mammary gland branching involved in pregnancy / monocyte differentiation / skeletal muscle cell differentiation / general transcription initiation factor binding / blastocyst development / somatic stem cell population maintenance / animal organ regeneration / hematopoietic stem cell differentiation / negative regulation of keratinocyte proliferation / ubiquitin ligase complex / positive regulation of transcription initiation by RNA polymerase II / embryonic placenta development / nuclear receptor-mediated steroid hormone signaling pathway / nuclear retinoid X receptor binding / negative regulation of fibroblast proliferation / RNA polymerase II preinitiation complex assembly / keratinocyte differentiation / lactation / peroxisome proliferator activated receptor signaling pathway / cellular response to epidermal growth factor stimulus / positive regulation of erythrocyte differentiation / cholesterol homeostasis / animal organ morphogenesis / nuclear estrogen receptor binding / nuclear receptor binding / transcription coregulator activity / mRNA transcription by RNA polymerase II / promoter-specific chromatin binding / chromatin DNA binding / positive regulation of transcription elongation by RNA polymerase II / liver development / protein-DNA complex / brain development / transcription coactivator binding / cell morphogenesis / protein import into nucleus / ubiquitin protein ligase activity / transcription corepressor activity / actin binding / heart development / angiogenesis / transcription regulator complex / in utero embryonic development / RNA polymerase II-specific DNA-binding transcription factor binding / transcription by RNA polymerase II / cytoskeleton / transcription coactivator activity / protein ubiquitination / nuclear body / RNA polymerase II cis-regulatory region sequence-specific DNA binding / positive regulation of cell population proliferation / chromatin binding / positive regulation of gene expression / regulation of transcription by RNA polymerase II Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.83 Å | |||||||||
![]() | Zhao, H. / Asturias, F. | |||||||||
Funding support | ![]()
| |||||||||
![]() | ![]() Title: An IDR-dependent mechanism for nuclear receptor control of Mediator interaction with RNA polymerase II. Authors: Haiyan Zhao / Jiaqin Li / Yufei Xiang / Sohail Malik / Supriya V Vartak / Giovana M B Veronezi / Natalie Young / McKayla Riney / Jens Kalchschmidt / Andrea Conte / Seol Kyoung Jung / ...Authors: Haiyan Zhao / Jiaqin Li / Yufei Xiang / Sohail Malik / Supriya V Vartak / Giovana M B Veronezi / Natalie Young / McKayla Riney / Jens Kalchschmidt / Andrea Conte / Seol Kyoung Jung / Srinivas Ramachandran / Robert G Roeder / Yi Shi / Rafael Casellas / Francisco J Asturias / ![]() Abstract: The essential Mediator (MED) coactivator complex plays a well-understood role in regulation of basal transcription in all eukaryotes, but the mechanism underlying its role in activator-dependent ...The essential Mediator (MED) coactivator complex plays a well-understood role in regulation of basal transcription in all eukaryotes, but the mechanism underlying its role in activator-dependent transcription remains unknown. We investigated modulation of metazoan MED interaction with RNA polymerase II (RNA Pol II) by antagonistic effects of the MED26 subunit and the CDK8 kinase module (CKM). Biochemical analysis of CKM-MED showed that the CKM blocks binding of the RNA Pol II carboxy-terminal domain (CTD), preventing RNA Pol II interaction. This restriction is eliminated by nuclear receptor (NR) binding to CKM-MED, which enables CTD binding in a MED26-dependent manner. Cryoelectron microscopy (cryo-EM) and crosslinking-mass spectrometry (XL-MS) revealed that the structural basis for modulation of CTD interaction with MED relates to a large intrinsically disordered region (IDR) in CKM subunit MED13 that blocks MED26 and CTD interaction with MED but is repositioned upon NR binding. Hence, NRs can control transcription initiation by priming CKM-MED for MED26-dependent RNA Pol II interaction. | |||||||||
History |
|
-
Structure visualization
Structure viewer | Molecule: ![]() ![]() |
---|
-
Downloads & links
-
Download
PDBx/mmCIF format | ![]() | 1.3 MB | Display | ![]() |
---|---|---|---|---|
PDB format | ![]() | 958.1 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.5 MB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 1.6 MB | Display | |
Data in XML | ![]() | 194.6 KB | Display | |
Data in CIF | ![]() | 308.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 40971MC ![]() 8t1iC ![]() 8t9dC 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 EABCDFGHIJKLMOPQRSTVWXYZ9
-Protein/peptide , 1 types, 1 molecules a
#25: Protein/peptide | Mass: 1720.111 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() ![]() |
---|
-Details
Has protein modification | Y |
---|
-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
---|---|
EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
Component | Name: Mouse mediator complex / Type: COMPLEX / Entity ID: all / Source: NATURAL |
---|---|
Molecular weight | Value: 1.0 MDa / Experimental value: NO |
Source (natural) | Organism: ![]() ![]() |
Buffer solution | pH: 7.9 |
Specimen | Conc.: 0.1 mg/ml / Embedding applied: YES / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: EMS Lacey Carbon |
EM embedding | Material: ice |
Vitrification | Instrument: HOMEMADE PLUNGER / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K |
-
Electron microscopy imaging
Experimental equipment | ![]() Model: Talos Arctica / Image courtesy: FEI Company |
---|---|
Microscopy | Model: FEI TALOS ARCTICA |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 36000 X / Calibrated magnification: 36000 X / Nominal defocus max: 3500 nm / Nominal defocus min: 700 nm / Calibrated defocus min: 700 nm / Calibrated defocus max: 3500 nm / Cs: 2.7 mm / C2 aperture diameter: 50 µm / Alignment procedure: COMA FREE |
Specimen holder | Cryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Temperature (max): 70 K / Temperature (min): 70 K |
Image recording | Electron dose: 22.5 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
-
Processing
EM software |
| ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF correction | Type: NONE | ||||||||||||
3D reconstruction | Resolution: 4.83 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 111331 / Symmetry type: POINT |