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- EMDB-23813: Autoinhibited BRAF:(14-3-3)2:MEK complex with the BRAF RBD resolved -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-23813 | |||||||||
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Title | Autoinhibited BRAF:(14-3-3)2:MEK complex with the BRAF RBD resolved | |||||||||
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Function / homology | ![]() Golgi reassembly / synaptic target recognition / epithelial cell proliferation involved in lung morphogenesis / positive regulation of endodermal cell differentiation / respiratory system process / NOTCH4 Activation and Transmission of Signal to the Nucleus / regulation of synapse maturation / CD4-positive, alpha-beta T cell differentiation / placenta blood vessel development / trehalose metabolism in response to stress ...Golgi reassembly / synaptic target recognition / epithelial cell proliferation involved in lung morphogenesis / positive regulation of endodermal cell differentiation / respiratory system process / NOTCH4 Activation and Transmission of Signal to the Nucleus / regulation of synapse maturation / CD4-positive, alpha-beta T cell differentiation / placenta blood vessel development / trehalose metabolism in response to stress / regulation of axon regeneration / CD4-positive or CD8-positive, alpha-beta T cell lineage commitment / mitogen-activated protein kinase kinase / establishment of Golgi localization / negative regulation of synaptic vesicle exocytosis / labyrinthine layer development / type B pancreatic cell proliferation / MAP-kinase scaffold activity / Signalling to p38 via RIT and RIN / cerebellar cortex formation / head morphogenesis / myeloid progenitor cell differentiation / tube formation / ARMS-mediated activation / SHOC2 M1731 mutant abolishes MRAS complex function / Gain-of-function MRAS complexes activate RAF signaling / endothelial cell apoptotic process / Signaling by MAP2K mutants / Rap1 signalling / negative regulation of fibroblast migration / positive regulation of glucose transmembrane transport / establishment of protein localization to membrane / negative regulation of protein localization to nucleus / regulation of Golgi inheritance / mitogen-activated protein kinase kinase binding / trachea formation / regulation of T cell differentiation / Negative feedback regulation of MAPK pathway / regulation of early endosome to late endosome transport / KSRP (KHSRP) binds and destabilizes mRNA / positive regulation of axonogenesis / regulation of stress-activated MAPK cascade / Frs2-mediated activation / GP1b-IX-V activation signalling / ERBB2-ERBB3 signaling pathway / stress fiber assembly / positive regulation of axon regeneration / protein kinase activator activity / endodermal cell differentiation / face development / MAPK3 (ERK1) activation / synaptic vesicle exocytosis / somatic stem cell population maintenance / Bergmann glial cell differentiation / MAP kinase kinase activity / thyroid gland development / Uptake and function of anthrax toxins / Regulation of localization of FOXO transcription factors / Interleukin-3, Interleukin-5 and GM-CSF signaling / phosphoserine residue binding / MAP kinase kinase kinase activity / Activation of BAD and translocation to mitochondria / protein targeting / SARS-CoV-2 targets host intracellular signalling and regulatory pathways / cellular response to glucose starvation / Chk1/Chk2(Cds1) mediated inactivation of Cyclin B:Cdk1 complex / Schwann cell development / negative regulation of endothelial cell apoptotic process / SARS-CoV-1 targets host intracellular signalling and regulatory pathways / positive regulation of substrate adhesion-dependent cell spreading / RHO GTPases activate PKNs / keratinocyte differentiation / positive regulation of stress fiber assembly / negative regulation of TORC1 signaling / response to cAMP / protein sequestering activity / cellular response to calcium ion / ERK1 and ERK2 cascade / negative regulation of innate immune response / myelination / protein serine/threonine/tyrosine kinase activity / hippocampal mossy fiber to CA3 synapse / protein serine/threonine kinase activator activity / MAP3K8 (TPL2)-dependent MAPK1/3 activation / substrate adhesion-dependent cell spreading / regulation of ERK1 and ERK2 cascade / insulin-like growth factor receptor signaling pathway / cellular response to nerve growth factor stimulus / thymus development / Signal transduction by L1 / Deactivation of the beta-catenin transactivating complex / Translocation of SLC2A4 (GLUT4) to the plasma membrane / cell motility / long-term synaptic potentiation / TP53 Regulates Metabolic Genes / Negative regulation of NOTCH4 signaling / animal organ morphogenesis / Spry regulation of FGF signaling / RAF activation / lung development Similarity search - Function | |||||||||
Biological species | ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.66 Å | |||||||||
![]() | Martinez Fiesco JA / Ping Z / Durrant DE / Morrison DK | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Structural insights into the BRAF monomer-to-dimer transition mediated by RAS binding. Authors: Juliana A Martinez Fiesco / David E Durrant / Deborah K Morrison / Ping Zhang / ![]() Abstract: RAF kinases are essential effectors of RAS, but how RAS binding initiates the conformational changes needed for autoinhibited RAF monomers to form active dimers has remained unclear. Here, we present ...RAF kinases are essential effectors of RAS, but how RAS binding initiates the conformational changes needed for autoinhibited RAF monomers to form active dimers has remained unclear. Here, we present cryo-electron microscopy structures of full-length BRAF complexes derived from mammalian cells: autoinhibited, monomeric BRAF:14-3-3:MEK and BRAF:14-3-3 complexes, and an inhibitor-bound, dimeric BRAF:14-3-3 complex, at 3.7, 4.1, and 3.9 Å resolution, respectively. In both autoinhibited, monomeric structures, the RAS binding domain (RBD) of BRAF is resolved, revealing that the RBD forms an extensive contact interface with the 14-3-3 protomer bound to the BRAF C-terminal site and that key basic residues required for RBD-RAS binding are exposed. Moreover, through structure-guided mutational studies, our findings indicate that RAS-RAF binding is a dynamic process and that RBD residues at the center of the RBD:14-3-3 interface have a dual function, first contributing to RAF autoinhibition and then to the full spectrum of RAS-RBD interactions. | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 2.6 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 15.8 KB 15.8 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 6.5 KB | Display | ![]() |
Images | ![]() | 52 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 366.8 KB | Display | ![]() |
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Full document | ![]() | 366.4 KB | Display | |
Data in XML | ![]() | 9 KB | Display | |
Data in CIF | ![]() | 11.5 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7mfdMC ![]() 7mfeC ![]() 7mffC M: atomic model generated by this map C: citing same article ( |
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Similar structure data |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Voxel size | X=Y=Z: 1.058 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : Autoinhibited B-Raf:(14-3-3)2:MEK complex with resolved RBD
Entire | Name: Autoinhibited B-Raf:(14-3-3)2:MEK complex with resolved RBD |
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Components |
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-Supramolecule #1: Autoinhibited B-Raf:(14-3-3)2:MEK complex with resolved RBD
Supramolecule | Name: Autoinhibited B-Raf:(14-3-3)2:MEK complex with resolved RBD type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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-Supramolecule #2: B-raf
Supramolecule | Name: B-raf / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1 |
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Source (natural) | Organism: ![]() |
Recombinant expression | Organism: ![]() |
-Supramolecule #3: MEK
Supramolecule | Name: MEK / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2 |
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Source (natural) | Organism: ![]() |
-Supramolecule #4: 14-3-3 protein zeta/delta
Supramolecule | Name: 14-3-3 protein zeta/delta / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #3 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Serine/threonine-protein kinase B-raf
Macromolecule | Name: Serine/threonine-protein kinase B-raf / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: non-specific serine/threonine protein kinase |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 84.697695 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MAALSGGGGG GAEPGQALFN GDMEPEAGAG AGAAASSAAD PAIPEEVWNI KQMIKLTQEH IEALLDKFGG EHNPPSIYLE AYEEYTSKL DALQQREQQL LESLGNGTDF SVSSSASMDT VTSSSSSSLS VLPSSLSVFQ NPTDVARSNP KSPQKPIVRV F LPNKQRTV ...String: MAALSGGGGG GAEPGQALFN GDMEPEAGAG AGAAASSAAD PAIPEEVWNI KQMIKLTQEH IEALLDKFGG EHNPPSIYLE AYEEYTSKL DALQQREQQL LESLGNGTDF SVSSSASMDT VTSSSSSSLS VLPSSLSVFQ NPTDVARSNP KSPQKPIVRV F LPNKQRTV VPARCGVTVR DSLKKALMMR GLIPECCAVY RIQDGEKKPI GWDTDISWLT GEELHVEVLE NVPLTTHNFV RK TFFTLAF CDFCRKLLFQ GFRCQTCGYK FHQRCSTEVP LMCVNYDQLD LLFVSKFFEH HPIPQEEASL AETALTSGSS PSA PASDSI GPQILTSPSP SKSIPIPQPF RPADEDHRNQ FGQRDRSS(SEP)A PNVHINTIEP VNIDDLIRDQ GFRGDGGSTT GLSATPPAS LPGSLTNVKA LQKSPGPQRE RKSSSSSEDR NRMKTLGRRD SSDDWEIPDG QITVGQRIGS GSFGTVYKGK W HGDVAVKM LNVTAPTPQQ LQAFKNEVGV LRKTRHVNIL LFMGYSTKPQ LAIVTQWCEG SSLYHHLHII ETKFEMIKLI DI ARQTAQG MDYLHAKSII HRDLKSNNIF LHEDLTVKIG DFGLATVKSR WSGSHQFEQL SGSILWMAPE VIRMQDKNPY SFQ SDVYAF GIVLYELMTG QLPYSNINNR DQIIFMVGRG YLSPDLSKVR SNCPKAMKRL MAECLKKKRD ERPLFPQILA SIEL LARSL PKIHRSA(SEP)EP SLNRAGFQTE DFSLYACASP KTPIQAGGYG AFPVH |
-Macromolecule #2: Dual specificity mitogen-activated protein kinase kinase 1
Macromolecule | Name: Dual specificity mitogen-activated protein kinase kinase 1 type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: mitogen-activated protein kinase kinase |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 43.493938 KDa |
Sequence | String: MPKKKPTPIQ LNPAPDGSAV NGTSSAETNL EALQKKLEEL ELDEQQRKRL EAFLTQKQKV GELKDDDFEK ISELGAGNGG VVFKVSHKP SGLVMARKLI HLEIKPAIRN QIIRELQVLH ECNSPYIVGF YGAFYSDGEI SICMEHMDGG SLDQVLKKAG R IPEQILGK ...String: MPKKKPTPIQ LNPAPDGSAV NGTSSAETNL EALQKKLEEL ELDEQQRKRL EAFLTQKQKV GELKDDDFEK ISELGAGNGG VVFKVSHKP SGLVMARKLI HLEIKPAIRN QIIRELQVLH ECNSPYIVGF YGAFYSDGEI SICMEHMDGG SLDQVLKKAG R IPEQILGK VSIAVIKGLT YLREKHKIMH RDVKPSNILV NSRGEIKLCD FGVSGQLIDS MANSFVGTRS YMSPERLQGT HY SVQSDIW SMGLSLVEMA VGRYPIPPPD AKELELMFGC QVEGDAAETP PRPRTPGRPL SSYGMDSRPP MAIFELLDYI VNE PPPKLP SGVFSLEFQD FVNKCLIKNP AERADLKQLM VHAFIKRSDA EEVDFAGWLC STIGLNQPST PTHAAGV |
-Macromolecule #3: 14-3-3 protein zeta/delta
Macromolecule | Name: 14-3-3 protein zeta/delta / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 27.777092 KDa |
Sequence | String: MDKNELVQKA KLAEQAERYD DMAACMKSVT EQGAELSNEE RNLLSVAYKN VVGARRSSWR VVSSIEQKTE GAEKKQQMAR EYREKIETE LRDICNDVLS LLEKFLIPNA SQAESKVFYL KMKGDYYRYL AEVAAGDDKK GIVDQSQQAY QEAFEISKKE M QPTHPIRL ...String: MDKNELVQKA KLAEQAERYD DMAACMKSVT EQGAELSNEE RNLLSVAYKN VVGARRSSWR VVSSIEQKTE GAEKKQQMAR EYREKIETE LRDICNDVLS LLEKFLIPNA SQAESKVFYL KMKGDYYRYL AEVAAGDDKK GIVDQSQQAY QEAFEISKKE M QPTHPIRL GLALNFSVFY YEILNSPEKA CSLAKTAFDE AIAELDTLSE ESYKDSTLIM QLLRDNLTLW TSDTQGDEAE AG EGGEN |
-Macromolecule #4: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 4 / Number of copies: 2 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Macromolecule #5: N-(3-fluoro-4-{[4-methyl-2-oxo-7-(pyrimidin-2-yloxy)-2H-chromen-3...
Macromolecule | Name: N-(3-fluoro-4-{[4-methyl-2-oxo-7-(pyrimidin-2-yloxy)-2H-chromen-3-yl]methyl}pyridin-2-yl)-N'-methylsulfuric diamide type: ligand / ID: 5 / Number of copies: 1 / Formula: CHU |
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Molecular weight | Theoretical: 471.462 Da |
Chemical component information | ![]() ChemComp-CHU: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 0.2 mg/mL | ||||||||||||
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Buffer | pH: 8 Component:
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Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Details: 20mAmp | ||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 90 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 57.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |