<?xml version="1.0" encoding="UTF-8"?>
<emd xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="https://ftp.ebi.ac.uk/pub/databases/em_ebi/emdb_related/emdb-schemas/emdb_schemas/v3/v3_0_9_3/emdb.xsd" version="3.0.9.3" emdb_id="EMD-21157">
    <admin>
        <current_status>
            <date>2024-11-20</date>
            <code>REL</code>
            <processing_site>RCSB</processing_site>
        </current_status>
        <sites>
            <deposition>RCSB</deposition>
            <last_processing>RCSB</last_processing>
        </sites>
        <key_dates>
            <deposition>2020-01-02</deposition>
            <header_release>2020-01-15</header_release>
            <map_release>2020-01-15</map_release>
            <update>2024-11-20</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)</funding_body>
                <code>GM130393</code>
                <country>United States</country>
            </grant_reference>
        </grant_support>
        <title>Yeast COMPASS in complex with a ubiquitinated nucleosome</title>
        <authors_list>
            <author>Worden EJ</author>
            <author>Wolberger C</author>
        </authors_list>
        <keywords>Methylation, histone, transcription, ubiquitin, gene regulation, TRANSFERASE-STRUCTURAL PROTEIN-DNA complex</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Worden EJ</author>
                    <author order="2">Zhang X</author>
                    <author ORCID="0000-0001-8578-2969" order="3">Wolberger C</author>
                    <title>Structural basis for COMPASS recognition of an H2B-ubiquitinated nucleosome.</title>
                    <journal_abbreviation>Elife</journal_abbreviation>
                    <country>US</country>
                    <volume>9</volume>
                    <year>2020</year>
                    <external_references type="PUBMED">31922488</external_references>
                    <external_references type="DOI">doi:10.7554/eLife.53199</external_references>
                    <external_references type="ISSN">2050-084X</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6ven</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Complex between yeast COMPASS and a ubiquitinated Nucleosome</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Complex between yeast COMPASS and a ubiquitinated Nucleosome</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>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>6</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>7</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>8</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>9</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>10</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>11</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>12</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>13</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="2">
                <name>Yeast COMPASS</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>8</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>9</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>10</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>11</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>12</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>13</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="4932">Saccharomyces cerevisiae</organism>
                </natural_source>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="3">
                <name>Ubiquitinated Nucleosome</name>
                <parent>1</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>
                        <macromolecule_id>4</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>5</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>6</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>7</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="8355">Xenopus laevis</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>Histone H3.2</name>
                <natural_source database="NCBI">
                    <organism ncbi="8355">Xenopus laevis</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.01525183</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>ART(NLE)QTARKSTGGKAPRKQLATKAARKSAPATGGVKKPHRYRPGTVALREIRRYQKSTELLIRKLPFQRLVREIAQ
DFKTDLRFQSSAV(NLE)ALQEASEAYLVALFEDTNLCAIHAKRVTI(NLE)PKDIQLARRIRGERA</string>
                    <external_references type="UNIPROTKB">P84233</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>Histone H4</name>
                <natural_source database="NCBI">
                    <organism ncbi="8355">Xenopus laevis</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.011263230999999999</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>SGRGKGGKGLGKGGAKRHRKVLRDNIQGITKPAIRRLARRGGVKRISGLIYEETRGVLKVFLENVIRDAVTYTEHAKRKT
VTAMDVVYALKRQGRTLYGFGG</string>
                    <external_references type="UNIPROTKB">P62799</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>Histone H2A type 1</name>
                <natural_source database="NCBI">
                    <organism ncbi="8355">Xenopus laevis</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.013978240999999999</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>SGRGKQGGKTRAKAKTRSSRAGLQFPVGRVHRLLRKGNYAERVGAGAPVYLAAVLEYLTAEILELAGNAARDNKKTRIIP
RHLQLAVRNDEELNKLLGRVTIAQGGVLPNIQSVLLPKKTESSKSAKSK</string>
                    <external_references type="UNIPROTKB">P06897</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="4">
                <name>Histone H2B 1.1</name>
                <natural_source database="NCBI">
                    <organism ncbi="8355">Xenopus laevis</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.013498715</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="469008">Escherichia coli BL21(DE3)</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>AKSAPAPKKGSKKAVTKTQKKDGKKRRKTRKESYAIYVYKVLKQVHPDTGISSKAMSIMNSFVNDVFERIAGEASRLAHY
NKRSTITSREIQTAVRLLLPGELAKHAVSEGTKAVTCYTSAK</string>
                    <external_references type="UNIPROTKB">P02281</external_references>
                </sequence>
            </protein_or_peptide>
            <dna macromolecule_id="5">
                <name>601 DNA (146-MER)</name>
                <natural_source database="NCBI">
                    <organism ncbi="32630">synthetic construct</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.044825559</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>(DT)(DC)(DG)(DA)(DG)(DA)(DA)(DT)(DC)(DC)(DC)(DG)(DG)(DT)(DG)(DC)(DC)(DG)(DA)(DG)
(DG)(DC)(DC)(DG)(DC)(DT)(DC)(DA)(DA)(DT)(DT)(DG)(DG)(DT)(DC)(DG)(DT)(DA)(DG)(DA)
(DC)(DA)(DG)(DC)(DT)(DC)(DT)(DA)(DG)(DC)(DA)(DC)(DC)(DG)(DC)(DT)(DT)(DA)(DA)(DA)
(DC)(DG)(DC)(DA)(DC)(DG)(DT)(DA)(DC)(DG)(DC)(DG)(DC)(DT)(DG)(DT)(DC)(DC)(DC)(DC)
(DC)(DG)(DC)(DG)(DT)(DT)(DT)(DT)(DA)(DA)(DC)(DC)(DG)(DC)(DC)(DA)(DA)(DG)(DG)(DG)
(DG)(DA)(DT)(DT)(DA)(DC)(DT)(DC)(DC)(DC)(DT)(DA)(DG)(DT)(DC)(DT)(DC)(DC)(DA)(DG)
(DG)(DC)(DA)(DC)(DG)(DT)(DG)(DT)(DC)(DA)(DG)(DA)(DT)(DA)(DT)(DA)(DT)(DA)(DC)(DA)
(DT)(DC)(DC)(DG)(DA)(DT)</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
            <dna macromolecule_id="6">
                <name>601 DNA (146-MER)</name>
                <natural_source database="NCBI">
                    <organism ncbi="32630">synthetic construct</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.045305851999999994</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>(DA)(DT)(DC)(DG)(DG)(DA)(DT)(DG)(DT)(DA)(DT)(DA)(DT)(DA)(DT)(DC)(DT)(DG)(DA)(DC)
(DA)(DC)(DG)(DT)(DG)(DC)(DC)(DT)(DG)(DG)(DA)(DG)(DA)(DC)(DT)(DA)(DG)(DG)(DG)(DA)
(DG)(DT)(DA)(DA)(DT)(DC)(DC)(DC)(DC)(DT)(DT)(DG)(DG)(DC)(DG)(DG)(DT)(DT)(DA)(DA)
(DA)(DA)(DC)(DG)(DC)(DG)(DG)(DG)(DG)(DG)(DA)(DC)(DA)(DG)(DC)(DG)(DC)(DG)(DT)(DA)
(DC)(DG)(DT)(DG)(DC)(DG)(DT)(DT)(DT)(DA)(DA)(DG)(DC)(DG)(DG)(DT)(DG)(DC)(DT)(DA)
(DG)(DA)(DG)(DC)(DT)(DG)(DT)(DC)(DT)(DA)(DC)(DG)(DA)(DC)(DC)(DA)(DA)(DT)(DT)(DG)
(DA)(DG)(DC)(DG)(DG)(DC)(DC)(DT)(DC)(DG)(DG)(DC)(DA)(DC)(DC)(DG)(DG)(DG)(DA)(DT)
(DT)(DC)(DT)(DC)(DG)(DA)</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
            <protein_or_peptide macromolecule_id="7">
                <name>Ubiquitin</name>
                <natural_source database="NCBI">
                    <organism ncbi="9606">Homo sapiens</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.009036393</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="562">Escherichia coli</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>GSHMMQIFVKTLTGKTITLEVEPSDTIENVKAKIQDKEGIPPDQQRLIFAGKQLEDGRTLSDYNIQKESTLHLVLRLRGC</string>
                    <external_references type="UNIPROTKB">P0CG48</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="8">
                <name>COMPASS component SWD3</name>
                <natural_source database="NCBI">
                    <organism ncbi="4932">Saccharomyces cerevisiae</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.034786637</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7111">Trichoplusia ni</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MFQFVTPVGTQNGLKATCAKISPDGQFLAITQGLNILIYDINRRTVSQTLVTSHARPFSELCWSPDGQCIATASDDFSVE
IIHLSYGLLHTFIGHTAPVISLTFNRKGNLLFTSSMDESIKIWDTLNGSLMKTISAHSEAVVSVDVPMNDSSILSSGSYD
GLIRIFDAETGHCLKTLTYDKDWKRENGVVPISQVKFSENARYLLVKSLDGVVKIWDCIGGCVVRTFQVQPLEKGVLHHS
CGMDFLNPEDGSTPLVISGYENGDIYCWNSDTKSLLQLLDGSLYHHSSPVMSIHCFGNIMCSLALNGDCCLWRWV</string>
                    <external_references type="UNIPROTKB">P38123</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="9">
                <name>COMPASS component SWD1</name>
                <natural_source database="NCBI">
                    <organism ncbi="4932">Saccharomyces cerevisiae</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.048702574</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7111">Trichoplusia ni</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MNILLQDPFAVLKEHPEKLTHTIENPLRTECLQFSPCGDYLALGCANGALVIYDMDTFRPICVPGNMLGAHVRPITSIAW
SPDGRLLLTSSRDWSIKLWDLSKPSKPLKEIRFDSPIWGCQWLDAKRRLCVATIFEESDAYVIDFSNDPVASLLSKSDEK
QLSSTPDHGYVLVCTVHTKHPNIIIVGTSKGWLDFYKFHSLYQTECIHSLKITSSNIKHLIVSQNGERLAINCSDRTIRQ
YEISIDDENSAVELTLEHKYQDVINKLQWNCILFSNNTAEYLVASTHGSSAHELYIWETTSGTLVRVLEGAEEELIDINW
DFYSMSIVSNGFESGNVYVWSVVIPPKWSALAPDFEEVEENVDYLEKEDEFDEVDEAEQQQGLEQEEEIAIDLRTREQYD
VRGNNLLVERFTIPTDYTRIIKMQSS</string>
                    <external_references type="UNIPROTKB">P39706</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="10">
                <name>Histone-lysine N-methyltransferase, H3 lysine-4 specific</name>
                <natural_source database="NCBI">
                    <organism ncbi="4932">Saccharomyces cerevisiae</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.041508487999999996</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7111">Trichoplusia ni</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MHHHHHHGSSDYKDHDGDYKDHDIDYKDDDDKENLYFQGMDLQNAIKDEEDMLILKQLLSTYTPTVTPETSAALEYKIWQ
SRRKVLEEEKASDWQIELNGTLFDSELQPGSSFKAEGFRKIADKLKINYLPHRRRVHQPLNTVNIHNERNEYTPELCQRE
ESSNKEPSDSVPQEVSSSRDNRASNRRFQQDIEAQKAAIGTESELLSLNQLNKRKKPVMFARSAIHNWGLYALDSIAAKE
MIIEYVGERIRQPVAEMREKRYLKNGIGSSYLFRVDENTVIDATKKGGIARFINHCCDPNCTAKIIKVGGRRRIVIYALR
DIAASEELTYDYKFEREKDDEERLPCLCGAPNCKGFLN</string>
                    <external_references type="UNIPROTKB">P38827</external_references>
                </sequence>
                <ec_number>2.1.1.354</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="11">
                <name>COMPASS component BRE2</name>
                <natural_source database="NCBI">
                    <organism ncbi="4932">Saccharomyces cerevisiae</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.058425301</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7111">Trichoplusia ni</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MKLGIIPYQEGTDIVYKNALQGQQEGKRPNLPQMEATHQIKSSVQGTSYEFVRTEDIPLNRRHFVYRPCSANPFFTILGY
GCTEYPFDHSGMSVMDRSEGLSISRDGNDLVSVPDQYGWRTARSDVCIKEGMTYWEVEVIRGGNKKFADGVNNKENADDS
VDEVQSGIYEKMHKQVNDTPHLRFGVCRREASLEAPVGFDVYGYGIRDISLESIHEGKLNCVLENGSPLKEGDKIGFLLS
LPSIHTQIKQAKEFTKRRIFALNSHMDTMNEPWREDAENGPSRKKLKQETTNKEFQRALLEDIEYNDVVRDQIAIRYKNQ
LFFEATDYVKTTKPEYYSSDKRERQDYYQLEDSYLAIFQNGKYLGKAFENLKPLLPPFSELQYNEKFYLGYWQHGEARDE
SNDKNTTSAKKKKQQQKKKKGLILRNKYVNNNKLGYYPTISCFNGGTARIISEEDKLEYLDQIRSAYCVDGNSKVNTLDT
LYKEQIAEDIVWDIIDELEQIALQQ</string>
                    <external_references type="UNIPROTKB">P43132</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="12">
                <name>COMPASS component SDC1</name>
                <natural_source database="NCBI">
                    <organism ncbi="4932">Saccharomyces cerevisiae</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.019466219</theoretical>
                </molecular_weight>
                <number_of_copies>2</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7111">Trichoplusia ni</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MNESENSPQHNEVTVPMVEDTSSNADIPMEQIQREDNKNYDKHDNECFDMNGNHNNNSDNLQFDSVPSSATKDLKNIKSV
TNQNVKIEESSSTNSVIEESSEPKISKLENVNLAATVGGSQTRKYLNTNVTPHLLAGMRLIAVQQPEDPLRVLGEYLIEQ
SNILKSGEKESNASK</string>
                    <external_references type="UNIPROTKB">Q03323</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="13">
                <name>COMPASS component SPP1</name>
                <natural_source database="NCBI">
                    <organism ncbi="4932">Saccharomyces cerevisiae</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.045489457</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <recombinant_expression database="NCBI">
                    <recombinant_organism ncbi="7111">Trichoplusia ni</recombinant_organism>
                </recombinant_expression>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MWSHPQFEKGGGSGGGSGGSSAWSHPQFEKGSENLYFQGSLPQWCPPHSTLKRNPTTGEDVYCICKRPDYGELMVGCDGC
DDWFHFTCLHIPEQFKDLVFSFYCPYCQAGITGKNKDAIINGEGSLPKTLWKRKCRISDCYKPCLQDSKYCSEEHGREFV
NDIWSRLKTDEDRAVVKKMVEQTGHIDKFKKFGQLDFIDNNIVVKTDDEKEIFDQIVVRDMTLKTLEDDLQEVQEISLPL
FKKKLELLEVYLGWLDNVYTEMRKLDDDAASHVECGKEDSKGTKRKKKKNSSRSRARKNICGYCSTYERIPCSVEEFVRD
FGSNEEATKIHEVCTKWKCNRHLDWVSTNQEQYLQQIDSLESMQERLQHLIQARKKQLNIQYYEEILRRGL</string>
                    <external_references type="UNIPROTKB">Q03012</external_references>
                </sequence>
            </protein_or_peptide>
            <ligand macromolecule_id="14">
                <name>ZINC ION</name>
                <molecular_weight>
                    <theoretical units="MDa">6.5409e-05</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>ZN</formula>
            </ligand>
            <ligand macromolecule_id="15">
                <name>S-ADENOSYLMETHIONINE</name>
                <molecular_weight>
                    <theoretical units="MDa">0.000398437</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <formula>SAM</formula>
            </ligand>
        </macromolecule_list>
    </sample>
    <structure_determination_list>
        <structure_determination structure_determination_id="1">
            <method>singleParticle</method>
            <aggregation_state>particle</aggregation_state>
            <specimen_preparation_list>
                <single_particle_preparation preparation_id="1">
                    <concentration units="mg/mL">0.5</concentration>
                    <buffer>
                        <ph>7.5</ph>
                        <component>
                            <concentration units="mM">30.0</concentration>
                            <name>Tris</name>
                        </component>
                        <component>
                            <concentration units="mM">100.0</concentration>
                            <formula>NaCl</formula>
                            <name>Sodium Chloride</name>
                        </component>
                        <component>
                            <concentration units="mM">2.0</concentration>
                            <name>DTT</name>
                        </component>
                        <component>
                            <concentration units="uM">25.0</concentration>
                            <name>S-adenosyl methionine</name>
                        </component>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/2</model>
                        <material>COPPER</material>
                        <mesh>200</mesh>
                        <support_film film_type_id="1">
                            <film_material>CARBON</film_material>
                            <film_topology>HOLEY ARRAY</film_topology>
                        </support_film>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">45</time>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                        <details>15 mA</details>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
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                        <details>blot force 5
3.5 sec blot time. </details>
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                </single_particle_preparation>
            </specimen_preparation_list>
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