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        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2019-02-11</deposition>
            <header_release>2019-03-27</header_release>
            <map_release>2019-10-09</map_release>
            <update>2025-05-14</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)</funding_body>
                <code>P50CA165962</code>
                <country>United States</country>
            </grant_reference>
            <grant_reference>
                <funding_body>National Institutes of Health/National Cancer Institute (NIH/NCI)</funding_body>
                <code>R50CA221830</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Structure of a MAPK pathway complex</title>
        <authors_list>
            <author>Park E</author>
            <author>Rawson S</author>
        </authors_list>
        <keywords>TRANSFERASE</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Park E</author>
                    <author order="2">Rawson S</author>
                    <author order="3">Li K</author>
                    <author order="4">Kim BW</author>
                    <author order="5">Ficarro SB</author>
                    <author order="6">Pino GG</author>
                    <author order="7">Sharif H</author>
                    <author order="8">Marto JA</author>
                    <author order="9">Jeon H</author>
                    <author order="10">Eck MJ</author>
                    <title>Architecture of autoinhibited and active BRAF-MEK1-14-3-3 complexes.</title>
                    <journal_abbreviation>Nature</journal_abbreviation>
                    <country>UK</country>
                    <volume>575</volume>
                    <first_page>545</first_page>
                    <last_page>550</last_page>
                    <year>2019</year>
                    <external_references type="PUBMED">31581174</external_references>
                    <external_references type="DOI">doi:10.1038/s41586-019-1660-y</external_references>
                    <external_references type="ISSN">1476-4687</external_references>
                    <external_references type="CSD">0006</external_references>
                    <external_references type="ASTM">NATUAS</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
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                <pdb_id>6nyb</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Ternary complex of BRAF/MEK1/14-3-3 with MEK inhibitor</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Ternary complex of BRAF/MEK1/14-3-3 with MEK inhibitor</name>
                <parent>0</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>1</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>2</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>3</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <details>14-3-3 is heterodimer of Insect epsilon and zeta. model was generated by Insect zeta sequence as a homo-dimer.</details>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.19</theoretical>
                </molecular_weight>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Serine/threonine-protein kinase B-raf</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.089402789</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSYYHHHHHHHHDIPTTENLYFQGAMDMAALSGGGGGGAEPGQALFNGDMEPEAGAGAGAAASSAADPAIPEEVWNIKQM
IKLTQEHIEALLDKFGGEHNPPSIYLEAYEEYTSKLDALQQREQQLLESLGNGTDFSVSSSASMDTVTSSSSSSLSVLPS
SLSVFQNPTDVARSNPKSPQKPIVRVFLPNKQRTVVPARCGVTVRDSLKKALMMRGLIPECCAVYRIQDGEKKPIGWDTD
ISWLTGEELHVEVLENVPLTTHNFVRKTFFTLAFCDFCRKLLFQGFRCQTCGYKFHQRCSTEVPLMCVNYDQLDLLFVSK
FFEHHPIPQEEASLAETALTSGSSPSAPASDSIGPQILTSPSPSKSIPIPQPFRPADEDHRNQFGQRDRSS(SEP)APNV
HINTIEPVNIDDLIRDQGFRGDGGSTTGLSATPPASLPGSLTNVKALQKSPGPQRERKSSSSSEDRNRMKTLGRRDSSDD
WEIPDGQITVGQRIGSGSFGTVYKGKWHGDVAVKMLNVTAPTPQQLQAFKNEVGVLRKTRHVNILLFMGYSTKPQLAIVT
QWCEGSSLYHHLHIIETKFEMIKLIDIARQTAQGMDYLHAKSIIHRDLKSNNIFLHEDLTVKIGDFGLATVKSRWSGSHQ
FEQLSGSILWMAPEVIRMQDKNPYSFQSDVYAFGIVLYELMTGQLPYSNINNRDQIIFMVGRGYLSPDLSKVRSNCPKAM
KRLMAECLKKKRDERPLFPQILASIELLARSLPKIHRSA(SEP)EPSLNRAGFQTEDFSLYACASPKTPIQAGGYGAFPV
HGTSAWSHPQFEK</string>
                    <external_references type="UNIPROTKB">P15056</external_references>
                </sequence>
                <ec_number>2.7.11.1</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Dual specificity mitogen-activated protein kinase kinase 1</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.045934542999999994</theoretical>
                </molecular_weight>
                <details>GDC-0623</details>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7108">Spodoptera frugiperda</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MGSSHHHHHHSAVDENLYFQGGMPKKKPTPIQLNPAPDGSAVNGTSSAETNLEALQKKLEELELDEQQRKRLEAFLTQKQ
KVGELKDDDFEKISELGAGNGGVVFKVSHKPSGLVMARKLIHLEIKPAIRNQIIRELQVLHECNSPYIVGFYGAFYSDGE
ISICMEHMDGGSLDQVLKKAGRIPEQILGKVSIAVIKGLTYLREKHKIMHRDVKPSNILVNSRGEIKLCDFGVSGQLIDA
MANAFVGTRSYMSPERLQGTHYSVQSDIWSMGLSLVEMAVGRYPIPPPDAKELELMFGCQVEGDAAETPPRPRTPGRPLS
SYGMDSRPPMAIFELLDYIVNEPPPKLPSGVFSLEFQDFVNKCLIKNPAERADLKQLMVHAFIKRSDAEEVDFAGWLCST
IGLNQPSTPTHAAGV</string>
                    <external_references type="UNIPROTKB">Q02750</external_references>
                </sequence>
                <ec_number>2.7.12.2</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>14-3-3 protein zeta</name>
                <natural_source database="NCBI">
                    <organism ncbi="7107">Spodoptera exigua</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.028108513999999998</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSVDKEELVQRAKLAEQAERYDDMAAAMKEVTETGVELSNEERNLLSVAYKNVVGARRSSWRVISSIEQKTEGSERKQQM
AKEYRVKVEKELREICYDVLGLLDKHLIPKASNPESKVFYLKMKGDYYRYLAEVATGETRNSVVEDSQKAYQDAFEISKA
KMQPTHPIRLGLALNFSVFYYEILNSPDKACQLAKQAFDDAIAELDTLNEDSYKDSTLIMQLLRDNLTLWTSDTQGDGDE
PAEGGDN</string>
                    <external_references type="UNIPROTKB">V9P4T4</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="4">
                <name>PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER</name>
                <molecular_weight>
                    <theoretical units="MDa">0.0005232469999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>AGS</formula>
            </ligand>
            <ligand macromolecule_id="5">
                <name>ZINC ION</name>
                <molecular_weight>
                    <theoretical units="MDa">6.5409e-05</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <formula>ZN</formula>
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            <ligand macromolecule_id="6">
                <name>ADENOSINE-5'-DIPHOSPHATE</name>
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                    <theoretical units="MDa">0.000427201</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>ADP</formula>
            </ligand>
            <ligand macromolecule_id="7">
                <name>MAGNESIUM ION</name>
                <molecular_weight>
                    <theoretical units="MDa">2.4305e-05</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>MG</formula>
            </ligand>
            <ligand macromolecule_id="8">
                <name>5-[(2-fluoro-4-iodophenyl)amino]-N-(2-hydroxyethoxy)imidazo[1,5-a]pyridine-6-carboxamide</name>
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                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>LCJ</formula>
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        </macromolecule_list>
    </sample>
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            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
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                    <vitrification>
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                    <imaging_mode>OTHER</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
                    <c2_aperture_diameter units="µm">70.0</c2_aperture_diameter>
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                <startup_model type_of_model="INSILICO MODEL"/>
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                    <resolution units="Å" res_type="BY AUTHOR">4.1</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <number_images_used>165298</number_images_used>
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