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- EMDB-23815: Dimeric (B-Raf)2:(14-3-3)2 complex bound to SB590885 Inhibitor -

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Basic information

Entry
Database: EMDB / ID: EMD-23815
TitleDimeric (B-Raf)2:(14-3-3)2 complex bound to SB590885 Inhibitor
Map dataDimeric (B-Raf)2:(14-3-3)2 complex bound to SB590885 Inhibitor
Sample
  • Complex: Active dimeric (B-Raf)2:(14-3-3)2 complex
    • Protein or peptide: 14-3-3 protein zeta/delta
    • Protein or peptide: Serine/threonine-protein kinase B-raf
  • Ligand: (1Z)-5-(2-{4-[2-(DIMETHYLAMINO)ETHOXY]PHENYL}-5-PYRIDIN-4-YL-1H-IMIDAZOL-4-YL)INDAN-1-ONE OXIME
KeywordsB-Raf / 14-3-3 / B-Raf complex / B-Raf dimer / Active B-Raf / SB590885 / signaling protein / Serine/threonine-protein kinase B-raf
Function / homology
Function and homology information


synaptic target recognition / Golgi reassembly / NOTCH4 Activation and Transmission of Signal to the Nucleus / respiratory system process / establishment of Golgi localization / tube formation / Signalling to p38 via RIT and RIN / ARMS-mediated activation / regulation of synapse maturation / SHOC2 M1731 mutant abolishes MRAS complex function ...synaptic target recognition / Golgi reassembly / NOTCH4 Activation and Transmission of Signal to the Nucleus / respiratory system process / establishment of Golgi localization / tube formation / Signalling to p38 via RIT and RIN / ARMS-mediated activation / regulation of synapse maturation / SHOC2 M1731 mutant abolishes MRAS complex function / Gain-of-function MRAS complexes activate RAF signaling / Rap1 signalling / positive regulation of D-glucose transmembrane transport / establishment of protein localization to membrane / negative regulation of protein localization to nucleus / KSRP (KHSRP) binds and destabilizes mRNA / Negative feedback regulation of MAPK pathway / GP1b-IX-V activation signalling / Frs2-mediated activation / MAP kinase kinase activity / lung development / Regulation of localization of FOXO transcription factors / Interleukin-3, Interleukin-5 and GM-CSF signaling / positive regulation of peptidyl-serine phosphorylation / phosphoserine residue binding / Activation of BAD and translocation to mitochondria / regulation of ERK1 and ERK2 cascade / MAP kinase kinase kinase activity / postsynaptic modulation of chemical synaptic transmission / cellular response to glucose starvation / SARS-CoV-2 targets host intracellular signalling and regulatory pathways / SARS-CoV-1 targets host intracellular signalling and regulatory pathways / RHO GTPases activate PKNs / Chk1/Chk2(Cds1) mediated inactivation of Cyclin B:Cdk1 complex / negative regulation of TORC1 signaling / animal organ morphogenesis / Transcriptional and post-translational regulation of MITF-M expression and activity / cellular response to calcium ion / negative regulation of innate immune response / hippocampal mossy fiber to CA3 synapse / TP53 Regulates Metabolic Genes / Translocation of SLC2A4 (GLUT4) to the plasma membrane / regulation of protein stability / RAF activation / protein sequestering activity / Signaling by high-kinase activity BRAF mutants / Spry regulation of FGF signaling / Deactivation of the beta-catenin transactivating complex / MAP2K and MAPK activation / Negative regulation of NOTCH4 signaling / epidermal growth factor receptor signaling pathway / intracellular protein localization / Signaling by RAF1 mutants / Signaling by moderate kinase activity BRAF mutants / Paradoxical activation of RAF signaling by kinase inactive BRAF / Signaling downstream of RAS mutants / MAPK cascade / Negative regulation of MAPK pathway / Signaling by BRAF and RAF1 fusions / melanosome / angiogenesis / cell body / scaffold protein binding / protein phosphatase binding / blood microparticle / DNA-binding transcription factor binding / vesicle / positive regulation of ERK1 and ERK2 cascade / transmembrane transporter binding / protein kinase activity / protein phosphorylation / non-specific serine/threonine protein kinase / postsynapse / neuron projection / cadherin binding / protein domain specific binding / protein serine kinase activity / focal adhesion / ubiquitin protein ligase binding / protein serine/threonine kinase activity / positive regulation of gene expression / calcium ion binding / negative regulation of apoptotic process / protein kinase binding / negative regulation of transcription by RNA polymerase II / glutamatergic synapse / signal transduction / mitochondrion / : / RNA binding / extracellular exosome / nucleoplasm / zinc ion binding / ATP binding / identical protein binding / nucleus / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Raf-like Ras-binding domain / Raf-like Ras-binding / Ras-binding domain (RBD) profile. / Raf-like Ras-binding domain / Diacylglycerol/phorbol-ester binding / Phorbol esters/diacylglycerol binding domain (C1 domain) / : / Zinc finger phorbol-ester/DAG-type signature. / Zinc finger phorbol-ester/DAG-type profile. / Protein kinase C conserved region 1 (C1) domains (Cysteine-rich domains) ...Raf-like Ras-binding domain / Raf-like Ras-binding / Ras-binding domain (RBD) profile. / Raf-like Ras-binding domain / Diacylglycerol/phorbol-ester binding / Phorbol esters/diacylglycerol binding domain (C1 domain) / : / Zinc finger phorbol-ester/DAG-type signature. / Zinc finger phorbol-ester/DAG-type profile. / Protein kinase C conserved region 1 (C1) domains (Cysteine-rich domains) / Protein kinase C-like, phorbol ester/diacylglycerol-binding domain / C1-like domain superfamily / 14-3-3 proteins signature 2. / 14-3-3 protein, conserved site / 14-3-3 proteins signature 1. / 14-3-3 protein / 14-3-3 homologues / 14-3-3 domain / 14-3-3 domain superfamily / 14-3-3 protein / Protein tyrosine and serine/threonine kinase / Serine-threonine/tyrosine-protein kinase, catalytic domain / Ubiquitin-like domain superfamily / Serine/threonine-protein kinase, active site / Serine/Threonine protein kinases active-site signature. / Serine/Threonine protein kinases, catalytic domain / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily
Similarity search - Domain/homology
Serine/threonine-protein kinase B-raf / 14-3-3 protein zeta/delta
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.89 Å
AuthorsMartinez Fiesco JA / Ping Z
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Cancer Institute (NIH/NCI)ZIA BC 011744 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)ZIA BC 010329 United States
CitationJournal: Nat Commun / Year: 2022
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
DepositionApr 9, 2021-
Header (metadata) releaseJan 26, 2022-
Map releaseJan 26, 2022-
UpdateNov 20, 2024-
Current statusNov 20, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.049
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.049
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7mff
  • Surface level: 0.049
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_23815.png

Downloads & links

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Map

FileDownload / File: emd_23815.map.gz / Format: CCP4 / Size: 8.4 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationDimeric (B-Raf)2:(14-3-3)2 complex bound to SB590885 Inhibitor
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.35 Å/pix.
x 130 pix.
= 175.24 Å		1.35 Å/pix.
x 130 pix.
= 175.24 Å		1.35 Å/pix.
x 130 pix.
= 175.24 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.348 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.049 / Movie #1: 0.049
Minimum - Maximum-0.20007819 - 0.31258443
Average (Standard dev.)0.00075961766 (±0.00957075)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions130130130
Spacing130130130
CellA=B=C: 175.24 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.3481.3481.348
M x/y/z130130130
origin x/y/z0.0000.0000.000
length x/y/z175.240175.240175.240
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS130130130
D min/max/mean-0.2000.3130.001

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Supplemental data

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Sample components

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Entire : Active dimeric (B-Raf)2:(14-3-3)2 complex

EntireName: Active dimeric (B-Raf)2:(14-3-3)2 complex
Components
  • Complex: Active dimeric (B-Raf)2:(14-3-3)2 complex
    • Protein or peptide: 14-3-3 protein zeta/delta
    • Protein or peptide: Serine/threonine-protein kinase B-raf
  • Ligand: (1Z)-5-(2-{4-[2-(DIMETHYLAMINO)ETHOXY]PHENYL}-5-PYRIDIN-4-YL-1H-IMIDAZOL-4-YL)INDAN-1-ONE OXIME

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Supramolecule #1: Active dimeric (B-Raf)2:(14-3-3)2 complex

SupramoleculeName: Active dimeric (B-Raf)2:(14-3-3)2 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: 14-3-3 protein zeta/delta

MacromoleculeName: 14-3-3 protein zeta/delta / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 27.777092 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: 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

UniProtKB: 14-3-3 protein zeta/delta

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Macromolecule #2: Serine/threonine-protein kinase B-raf

MacromoleculeName: Serine/threonine-protein kinase B-raf / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO / EC number: non-specific serine/threonine protein kinase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 84.697695 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: 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

UniProtKB: Serine/threonine-protein kinase B-raf

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Macromolecule #3: (1Z)-5-(2-{4-[2-(DIMETHYLAMINO)ETHOXY]PHENYL}-5-PYRIDIN-4-YL-1H-I...

MacromoleculeName: (1Z)-5-(2-{4-[2-(DIMETHYLAMINO)ETHOXY]PHENYL}-5-PYRIDIN-4-YL-1H-IMIDAZOL-4-YL)INDAN-1-ONE OXIME
type: ligand / ID: 3 / Number of copies: 2 / Formula: 215
Molecular weightTheoretical: 453.536 Da
Chemical component information

ChemComp-215:
(1Z)-5-(2-{4-[2-(DIMETHYLAMINO)ETHOXY]PHENYL}-5-PYRIDIN-4-YL-1H-IMIDAZOL-4-YL)INDAN-1-ONE OXIME

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration0.2 mg/mL
BufferpH: 8
Component:
ConcentrationName
20.0 mMTris
200.0 mMNaCl
10.0 mMDTT
VitrificationCryogen name: ETHANE / Chamber humidity: 90 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 57.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.89 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 203343
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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