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        <sites>
            <deposition>PDBe</deposition>
            <last_processing>PDBe</last_processing>
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        <key_dates>
            <deposition>2017-11-09</deposition>
            <header_release>2017-12-20</header_release>
            <map_release>2018-03-21</map_release>
            <update>2025-04-09</update>
        </key_dates>
        <grant_support>
            <grant_reference>
                <funding_body>European Research Council</funding_body>
                <code>693023</code>
                <country>Germany</country>
            </grant_reference>
            <grant_reference>
                <funding_body>German Research Foundation</funding_body>
                <code>SFB860</code>
                <country>Germany</country>
            </grant_reference>
            <grant_reference>
                <funding_body>German Research Foundation</funding_body>
                <code>SPP1935</code>
                <country>Germany</country>
            </grant_reference>
        </grant_support>
        <title>Structure of mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin</title>
        <authors_list>
            <author>Liu X</author>
            <author>Farnung L</author>
        </authors_list>
        <keywords>Inhibitor, elongation, active site, TRANSCRIPTION</keywords>
    </admin>
    <crossreferences>
        <citation_list>
            <primary_citation>
                <journal_citation published="true">
                    <author order="1">Liu X</author>
                    <author order="2">Farnung L</author>
                    <author order="3">Wigge C</author>
                    <author order="4">Cramer P</author>
                    <title>Cryo-EM structure of a mammalian RNA polymerase II elongation complex inhibited by alpha-amanitin.</title>
                    <journal_abbreviation>J. Biol. Chem.</journal_abbreviation>
                    <country>US</country>
                    <volume>293</volume>
                    <first_page>7189</first_page>
                    <last_page>7194</last_page>
                    <year>2018</year>
                    <external_references type="PUBMED">29550768</external_references>
                    <external_references type="DOI">doi:10.1074/jbc.RA118.002545</external_references>
                    <external_references type="ISSN">1083-351X</external_references>
                    <external_references type="CSD">0071</external_references>
                    <external_references type="ASTM">JBCHA3</external_references>
                </journal_citation>
            </primary_citation>
        </citation_list>
        <pdb_list>
            <pdb_reference>
                <pdb_id>6exv</pdb_id>
                <relationship>
                    <in_frame>FULLOVERLAP</in_frame>
                </relationship>
            </pdb_reference>
        </pdb_list>
    </crossreferences>
    <sample>
        <name>Mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin</name>
        <supramolecule_list>
            <complex_supramolecule supramolecule_id="1">
                <name>Mammalian RNA polymerase II elongation complex inhibited by Alpha-amanitin</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>
                        <macromolecule_id>14</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>15</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>16</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <molecular_weight>
                    <theoretical units="MDa">0.607</theoretical>
                </molecular_weight>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="2">
                <name>RNA polymerase II elongation complex</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>
                        <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_list>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="3">
                <name>Nucleic acids</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>14</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>15</macromolecule_id>
                    </macromolecule>
                    <macromolecule>
                        <macromolecule_id>16</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="32630">synthetic construct</organism>
                </natural_source>
            </complex_supramolecule>
            <complex_supramolecule supramolecule_id="4">
                <name>Alpha-amanitin</name>
                <parent>1</parent>
                <macromolecule_list>
                    <macromolecule>
                        <macromolecule_id>13</macromolecule_id>
                    </macromolecule>
                </macromolecule_list>
                <natural_source database="NCBI">
                    <organism ncbi="67723">Amanita phalloides</organism>
                </natural_source>
            </complex_supramolecule>
        </supramolecule_list>
        <macromolecule_list>
            <protein_or_peptide macromolecule_id="1">
                <name>DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.217450078</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MHGGGPPSGDSACPLRTIKRVQFGVLSPDELKRMSVTEGGIKYPETTEGGRPKLGGLMDPRQGVIERTGRCQTCAGNMTE
CPGHFGHIELAKPVFHVGFLVKTMKVLRCVCFFCSKLLVDSNNPKIKDILAKSKGQPKKRLTHVYDLCKGKNICEGGEEM
DNKFGVEQPEGDEDLTKEKGHGGCGRYQPRIRRSGLELYAEWKHVNEDSQEKKILLSPERVHEIFKRISDEECFVLGMEP
RYARPEWMIVTVLPVPPLSVRPAVVMQGSARNQDDLTHKLADIVKINNQLRRNEQNGAAAHVIAEDVKLLQFHVATMVDN
ELPGLPRAMQKSGRPLKSLKQRLKGKEGRVRGNLMGKRVDFSARTVITPDPNLSIDQVGVPRSIAANMTFAEIVTPFNID
RLQELVRRGNSQYPGAKYIIRDNGDRIDLRFHPKPSDLHLQTGYKVERHMCDGDIVIFNRQPTLHKMSMMGHRVRILPWS
TFRLNLSVTTPYNADFDGDEMNLHLPQSLETRAEIQELAMVPRMIVTPQSNRPVMGIVQDTLTAVRKFTKRDVFLERGEV
MNLLMFLSTWDGKVPQPAILKPRPLWTGKQIFSLIIPGHINCIRTHSTHPDDEDSGPYKHISPGDTKVVVENGELIMGIL
CKKSLGTSAGSLVHISYLEMGHDITRLFYSNIQTVINNWLLIEGHTIGIGDSIADSKTYQDIQNTIKKAKQDVIEVIEKA
HNNELEPTPGNTLRQTFENQVNRILNDARDKTGSSAQKSLSEYNNFKSMVVSGAKGSKINISQVIAVVGQQNVEGKRIPF
GFKHRTLPHFIKDDYGPESRGFVENSYLAGLTPTEFFFHAMGGREGLIDTAVKTAETGYIQRRLIKSMESVMVKYDATVR
NSINQVVQLRYGEDGLAGESVEFQNLATLKPSNKAFEKKFRFDYTNERALRRTLQEDLVKDVLSNAHIQNELEREFERMR
EDREVLRVIFPTGDSKVVLPCNLLRMIWNAQKIFHINPRLPSDLHPIKVVEGVKELSKKLVIVNGDDPLSRQAQENATLL
FNIHLRSTLCSRRMAEEFRLSGEAFDWLLGEIESKFNQAIAHPGEMVGALAAQSLGEPATQMTLNTFHYAGVSAKNVTLG
VPRLKELINISKKPKTPSLTVFLLGQSARDAERAKDILCRLEHTTLRKVTANTAIYYDPNPQSTVVAEDQEWVNVYYEMP
DFDVARISPWLLRVELDRKHMTDRKLTMEQIAEKINAGFGDDLNCIFNDDNAEKLVLRIRIMNSDENKMQEEEEVVDKMD
DDVFLRCIESNMLTDMTLQGIEQISKVYMHLPQTDNKKKIIITEDGEFKALQEWILETDGVSLMRVLSEKDVDPVRTTSN
DIVEIFTVLGIEAVRKALERELYHVISFDGSYVNYRHLALLCDTMTCRGHLMAITRHGVNRQDTGPLMKCSFEETVDVLM
EAAAHGESDPMKGVSENIMLGQLAPAGTGCFDLLLDAEKCKYGMEIPTNIPGLGAAGPTGMFFGSAPSPMGGISPAMTPW
NQGATPAYGAWSPSVGSGMTPGAAGFSPSAASDASGFSPGYSPAWSPTPGSPGSPGPSSPYIPSPGGAMSPSYSPTSPAY
EPRSPGGYTPQSPSYSPTSPSYSPTSPSYSPTSPNYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSP
TSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPSYSPTSPNYSPTSPNYTPTSP
SYSPTSPSYSPTSPNYTPTSPNYSPTSPSYSPTSPSYSPTSPSYSPSSPRYTPQSPTYTPSSPSYSPSSPSYSPTSPKYT
PTSPSYSPSSPEYTPTSPKYSPTSPKYSPTSPKYSPTSPTYSPTTPKYSPTSPTYSPTSPVYTPTSPKYSPTSPTYSPTS
PKYSPTSPTYSPTSPKGSTYSPTSPGYSPTSPTYSLTSPAISPDDSDEEN</string>
                    <external_references type="UNIPROTKB">I3LJR4</external_references>
                </sequence>
                <ec_number>2.7.7.6</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="2">
                <name>DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB2</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.133201625</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MQYDEDDDEITPDLWQEACWIVISSYFDEKGLVRQQLDSFDEFIQMSVQRIVEDAPPIDLQAEAQHASGEVEEPPRYLLK
FEQIYLSKPTHWERDGAPSPMMPNEARLRNLTYSAPLYVDITKTVIKEGEEQLQTQHQKTFIGKIPIMLRSTYCLLNGLT
DRDLCELNECPLDPGGYFIINGSEKVLIAQEKMATNTVYVFAKKDSKYAYTGECRSCLENSSRPTSTIWVSMLARGGQGA
KKSAIGQRIVATLPYIKQEVPIIIVFRALGFVSDRDILEHIIYDFEDPEMMEMVKPSLDEAFVIQEQNVALNFIGSRGAK
PGVTKEKRIKYAKEVLQKEMLPHVGVSDFCETKKAYFLGYMVHRLLLAALGRRELDDRDHYGNKRLDLAGPLLAFLFRGM
FKNLLKEVRIYAQKFIDRGKDFNLELAIKTRIISDGLKYSLATGNWGDQKKAHQARAGVSQVLNRLTFASTLSHLRRLNS
PIGRDGKLAKPRQLHNTLWGMVCPAETPEGHAVGLVKNLALMAYISVGSQPSPILEFLEEWSMENLEEISPAAIADATKI
FVNGCWVGIHKDPEQLMNTLRKLRRQMDIIVSEVSMIRDIREREIRIYTDAGRICRPLLIVEKQKLLLKKRHIDQLKERE
YNNYSWQDLVASGVVEYIDTLEEETVMLAMTPDDLQEKEVAYCSTYTHCEIHPSMILGVCASIIPFPDHNQSPRNTYQSA
MGKQAMGVYITNFHVRMDTLAHVLYYPQKPLVTTRSMEYLRFRELPAGINSIVAIASYTGYNQEDSVIMNRSAVDRGFFR
SVFYRSYKEQESKKGFDQEEVFEKPTRETCQGMRHAIYDKLDDDGLIAPGVRVSGDDVIIGKTVTLPENEDELEGTNRRY
TKRDCSTFLRTSETGIVDQVMVTLNQEGYKFCKIRVRSVRIPQIGDKFASRHGQKGTCGIQYRQEDMPFTCEGITPDIII
NPHAIPSRMTIGHLIECLQGKVSANKGEIGDATPFNDAVNVQKISNLLSDYGYHLRGNEVLYNGFTGRKITSQIFIGPTY
YQRLKHMVDDKIHSRARGPIQILNRQPMEGRSRDGGLRFGEMERDCQIAHGAAQFLRERLFEASDPYQVHVCNLCGIMAI
ANTRTHTYECRGCRNKTQISLVRMPYACKLLFQELMSMSIAPRMMSV</string>
                    <external_references type="UNIPROTKB">I3LGP4</external_references>
                </sequence>
                <ec_number>2.7.7.6</ec_number>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="3">
                <name>DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB3</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.031439074</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MPYANQPTVRITELTDENVKFIIENTDLAVANSIRRVFIAEVPIIAIDWVQIDANSSVLHDEFIAHRLGLIPLTSDDIVD
KLQYSRDCTCEEFCPECSVEFTLDVRCNEDQTRHVTSRDLISNSPRVIPVTSRNRDNDPSDYVEQDDILIVKLRKGQELR
LRAYAKKGFGKEHAKWNPTAGVAFEYDPDNALRHTVYPKPEEWPKSEYSELDEDESQAPYDPNGKPERFYYNVESCGSLR
PETIVLSALSGLKKKLSDLQTQLSHEIQSDVLTIN</string>
                    <external_references type="UNIPROTKB">I3LCH3</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="4">
                <name>DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB3</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.016331255</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MAAGGSDPRAGDVEEDASQLIFPKEFETAETLLNSEVHMLLEHRKQQNESAEDEQELSEVFMKTLNYTARFSRFKNRETI
ASVRSLLLQKKLHKFELACLANLCPETAEESKALIPSLEGRFEDEELQQILDDIQTKRSFQY</string>
                    <external_references type="UNIPROTKB">A0A287ADR4</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="5">
                <name>DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC1</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.024644318</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MDDEEETYRLWKIRKTIMQLCHDRGYLVTQDELDQTLEEFKAQFGDKPSEGRPRRTDLTVLVAHNDDPTDQMFVFFPEEP
KVGIKTIKVYCQRMQEENITRALIVVQQGMTPSAKQSLVDMAPKYILEQFLQQELLINITEHELVPEHVVMTKEEVTELL
ARYKLRENQLPRIQAGDPVARYFGIKRGQVVKIIRPSETAGRYITYRLVQ</string>
                    <external_references type="UNIPROTKB">I3LSI7</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="6">
                <name>DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC1</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.014477001</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MSDNEDNFDGDDFDDVEEDEGLDDLENAEEEGQENVEILPSGERPQANQKRITTPYMTKYERARVLGTRALQIAMCAPVM
VELEGETDPLLIAMKELKARKIPIIIRRYLPDGSYEDWGVDELIISD</string>
                    <external_references type="UNIPROTKB">F1SKN8</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="7">
                <name>DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB7</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.019314282999999998</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MFYHISLEHEILLHPRYFGPNLLNTVKQKLFTEVEGTCTGKYGFVIAVTTIDNIGAGVIQPGRGFVLYPVKYKAIVFRPF
KGEVVDAVVTQVNKVGLFTEIGPMSCFISRHSIPSEMEFDPNSNPPCYKTMDEDIVIQQDDEIRLKIVGTRVDKNDIFAI
GSLMDDYLGLVS</string>
                    <external_references type="UNIPROTKB">I3LJZ9</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="8">
                <name>DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC3</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.017162273</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MAGILFEDIFDVKDIDPEGKKFDRVSRLHCESESFKMDLILDVNIQIYPVDLGDKFRLVIASTLYEDGTLDDGEYNPTDD
RPSRADQFEYVMYGKVYRIEGDETSTEAATRLSAYVSYGGLLMRLQGDANNLHGFEVDSRVYLLMKKLAF</string>
                    <external_references type="UNIPROTKB">I3LCB2</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="9">
                <name>DNA-directed RNA polymerase II subunit RPB9</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.014541220999999998</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MEPDGTYEPGFVGIRFCQECNNMLYPKEDKENRILLYACRNCDYQQEADNSCIYVNKITHEVDELTQIIADVSQDPTLPR
TEDHPCQKCGHKEAVFFQSHSARAEDAMRLYYVCTAPHCGHRWTE</string>
                    <external_references type="UNIPROTKB">P60899</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="10">
                <name>DNA-directed RNA polymerases I, II, and III subunit RPABC5</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus Scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.007655122999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MIIPVRCFTCGKIVGNKWEAYLGLLQAEYTEGDALDALGLKRYCCRRMLLAHVDLIEKLLNYAPLEK</string>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="11">
                <name>DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC4</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.013310283999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MNAPPAFESFLLFEGEKKITINKDTKVPNACLFTINKEDHTLGNIIKSQLLKDPQVLFAGYKVPHPLEHKIIIRVQTTPD
YSPQEAFTNAITDLISELSLLEERFRVAIKDKQEGIE</string>
                    <external_references type="UNIPROTKB">F1RKE4</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="12">
                <name>DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC4</name>
                <natural_source database="NCBI">
                    <organism ncbi="9823">Sus scrofa</organism>
                    <tissue>Thymus</tissue>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.007018243999999999</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>MDTQKDVQPPKQQPMIYICGECHTENEIKSRDPIRCRECGYRIMYKKRTKRLVVFDAR</string>
                    <external_references type="UNIPROTKB">I3LN51</external_references>
                </sequence>
            </protein_or_peptide>
            <protein_or_peptide macromolecule_id="13">
                <name>AMATOXIN</name>
                <natural_source database="NCBI">
                    <organism ncbi="67723">Amanita phalloides</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.000939004</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <enantiomer>LEVO</enantiomer>
                <sequence>
                    <string>(ILX)(TRX)GIG(CSX)N(HYP)</string>
                    <external_references type="UNIPROTKB">P85421</external_references>
                </sequence>
            </protein_or_peptide>
            <dna macromolecule_id="14">
                <name>DNA (25-MER)</name>
                <natural_source database="NCBI">
                    <organism ncbi="32630">synthetic construct</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.013303563</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>(DG)(DG)(DC)(DA)(DG)(DT)(DA)(DC)(DT)(DA)(DG)(DT)(DA)(DT)(DT)(DC)(DT)(DA)(DG)(DT)
(DA)(DT)(DT)(DG)(DA)(DA)(DA)(DG)(DT)(DA)(DC)(DT)(DT)(DG)(DA)(DG)(DC)(DT)(DT)(DG)
(DA)(DT)(DC)</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
            <rna macromolecule_id="15">
                <name>RNA (5'-R(P*CP*AP*UP*AP*AP*AP*GP*AP*CP*CP*AP*GP*GP*C)-3')</name>
                <natural_source database="NCBI">
                    <organism ncbi="32630">synthetic construct</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.006414902</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>UAUAUGCAUAAAGACCAGGC</string>
                </sequence>
            </rna>
            <dna macromolecule_id="16">
                <name>DNA (36-MER)</name>
                <natural_source database="NCBI">
                    <organism ncbi="32630">synthetic construct</organism>
                </natural_source>
                <molecular_weight>
                    <theoretical units="MDa">0.013178483</theoretical>
                </molecular_weight>
                <number_of_copies>1</number_of_copies>
                <sequence>
                    <string>(DG)(DA)(DT)(DC)(DA)(DA)(DG)(DC)(DT)(DC)(DA)(DA)(DG)(DT)(DA)(DC)(DT)(DT)(DA)(DA)
(DG)(DC)(DC)(DT)(DG)(DG)(DT)(DC)(DT)(DA)(DT)(DA)(DC)(DT)(DA)(DG)(DT)(DA)(DC)(DT)
(DG)(DC)(DC)</string>
                </sequence>
                <classification>DNA</classification>
            </dna>
            <ligand macromolecule_id="17">
                <name>ZINC ION</name>
                <molecular_weight>
                    <theoretical units="MDa">6.5409e-05</theoretical>
                </molecular_weight>
                <number_of_copies>8</number_of_copies>
                <formula>ZN</formula>
            </ligand>
            <ligand macromolecule_id="18">
                <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>
        </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">0.244</concentration>
                    <buffer>
                        <ph>7.6</ph>
                    </buffer>
                    <grid>
                        <model>Quantifoil R2/2</model>
                        <material>GOLD</material>
                        <mesh>300</mesh>
                        <pretreatment>
                            <type>GLOW DISCHARGE</type>
                            <time units="s">45</time>
                            <atmosphere>AIR</atmosphere>
                        </pretreatment>
                    </grid>
                    <vitrification>
                        <cryogen_name>ETHANE</cryogen_name>
                        <chamber_humidity units="percentage">100</chamber_humidity>
                        <chamber_temperature units="K">277</chamber_temperature>
                        <instrument>FEI VITROBOT MARK IV</instrument>
                    </vitrification>
                </single_particle_preparation>
            </specimen_preparation_list>
            <microscopy_list>
                <single_particle_microscopy microscopy_id="1">
                    <microscope>FEI TITAN KRIOS</microscope>
                    <illumination_mode>SPOT SCAN</illumination_mode>
                    <imaging_mode>BRIGHT FIELD</imaging_mode>
                    <electron_source>FIELD EMISSION GUN</electron_source>
                    <acceleration_voltage units="kV">300</acceleration_voltage>
                    <nominal_cs units="mm">2.7</nominal_cs>
                    <nominal_defocus_min units="µm">1.5</nominal_defocus_min>
                    <nominal_defocus_max units="µm">2.5</nominal_defocus_max>
                    <nominal_magnification>130000.0</nominal_magnification>
                    <specimen_holder_model>FEI TITAN KRIOS AUTOGRID HOLDER</specimen_holder_model>
                    <cooling_holder_cryogen>NITROGEN</cooling_holder_cryogen>
                    <alignment_procedure>
                        <coma_free>
                            <residual_tilt units="mrad">10.0</residual_tilt>
                        </coma_free>
                    </alignment_procedure>
                    <specialist_optics>
                        <energy_filter>
                            <name>GIF Quantum LS</name>
                            <lower_energy_threshold units="eV">0</lower_energy_threshold>
                            <upper_energy_threshold units="eV">20</upper_energy_threshold>
                        </energy_filter>
                    </specialist_optics>
                    <image_recording_list>
                        <image_recording image_recording_id="1">
                            <film_or_detector_model>GATAN K2 SUMMIT (4k x 4k)</film_or_detector_model>
                            <detector_mode>COUNTING</detector_mode>
                            <digitization_details>
                                <dimensions>
                                    <width units="pixel">3710</width>
                                    <height units="pixel">3838</height>
                                </dimensions>
                            </digitization_details>
                            <number_grids_imaged>1</number_grids_imaged>
                            <number_real_images>2264</number_real_images>
                            <average_exposure_time units="s">10.0</average_exposure_time>
                            <average_electron_dose_per_image units="e/Å^2">35.0</average_electron_dose_per_image>
                        </image_recording>
                    </image_recording_list>
                </single_particle_microscopy>
            </microscopy_list>
            <singleparticle_processing image_processing_id="1">
                <image_recording_id>1</image_recording_id>
                <particle_selection>
                    <number_selected>207410</number_selected>
                </particle_selection>
                <startup_model type_of_model="EMDB MAP">
                    <emdb_id>EMD-3219</emdb_id>
                </startup_model>
                <final_reconstruction>
                    <applied_symmetry>
                        <point_group>C1</point_group>
                    </applied_symmetry>
                    <resolution units="Å" res_type="BY AUTHOR">3.6</resolution>
                    <resolution_method>FSC 0.143 CUT-OFF</resolution_method>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                    <number_images_used>134512</number_images_used>
                </final_reconstruction>
                <initial_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing>
                        <number_reference_projections>1</number_reference_projections>
                        <angular_sampling units="degrees">7.5</angular_sampling>
                    </projection_matching_processing>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </initial_angle_assignment>
                <final_angle_assignment>
                    <type>PROJECTION MATCHING</type>
                    <projection_matching_processing>
                        <number_reference_projections>1</number_reference_projections>
                        <angular_sampling units="degrees">1.8</angular_sampling>
                    </projection_matching_processing>
                    <software_list>
                        <software>
                            <name>RELION</name>
                        </software>
                    </software_list>
                </final_angle_assignment>
            </singleparticle_processing>
        </structure_determination>
    </structure_determination_list>
    <map format="CCP4" size_kbytes="67109">
        <file>emd_3981.map.gz</file>
        <symmetry>
            <space_group>1</space_group>
        </symmetry>
        <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
        <dimensions>
            <col>256</col>
            <row>256</row>
            <sec>256</sec>
        </dimensions>
        <origin>
            <col>0</col>
            <row>0</row>
            <sec>0</sec>
        </origin>
        <spacing>
            <x>256</x>
            <y>256</y>
            <z>256</z>
        </spacing>
        <cell>
            <a units="Å">273.92</a>
            <b units="Å">273.92</b>
            <c units="Å">273.92</c>
            <alpha units="deg">90.0</alpha>
            <beta units="deg">90.0</beta>
            <gamma units="deg">90.0</gamma>
        </cell>
        <axis_order>
            <fast>X</fast>
            <medium>Y</medium>
            <slow>Z</slow>
        </axis_order>
        <statistics>
            <minimum>-0.30933884</minimum>
            <maximum>0.446918</maximum>
            <average>0.00072788406</average>
            <std>0.012988935</std>
        </statistics>
        <pixel_spacing>
            <x units="Å">1.07</x>
            <y units="Å">1.07</y>
            <z units="Å">1.07</z>
        </pixel_spacing>
        <contour_list>
            <contour primary="true">
                <level>0.0577</level>
                <source>AUTHOR</source>
            </contour>
        </contour_list>
        <label>::::EMDATABANK.org::::D_1200007408::::</label>
        <annotation_details>Post-processed masked EM map of mammalian RNA polymerase II elongation complex inhibited by %u03B1-amanitin</annotation_details>
    </map>
    <interpretation>
        <modelling_list>
            <modelling>
                <refinement_protocol>FLEXIBLE FIT</refinement_protocol>
                <refinement_space>REAL</refinement_space>
                <overall_bvalue>53.969999999999999</overall_bvalue>
            </modelling>
        </modelling_list>
        <segmentation_list>
            <segmentation>
                <file>emd_3981_msk_1.map</file>
            </segmentation>
        </segmentation_list>
        <half_map_list>
            <half_map format="CCP4" size_kbytes="67109">
                <file>emd_3981_half_map_1.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>256</col>
                    <row>256</row>
                    <sec>256</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>256</x>
                    <y>256</y>
                    <z>256</z>
                </spacing>
                <cell>
                    <a units="Å">273.92</a>
                    <b units="Å">273.92</b>
                    <c units="Å">273.92</c>
                    <alpha units="deg">90.0</alpha>
                    <beta units="deg">90.0</beta>
                    <gamma units="deg">90.0</gamma>
                </cell>
                <axis_order>
                    <fast>X</fast>
                    <medium>Y</medium>
                    <slow>Z</slow>
                </axis_order>
                <statistics>
                    <minimum>-0.028367093</minimum>
                    <maximum>0.05924922</maximum>
                    <average>-0.00010533071</average>
                    <std>0.0031144242</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.07</x>
                    <y units="Å">1.07</y>
                    <z units="Å">1.07</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::D_1200007408::::</label>
                <annotation_details>Half-map post-refinement of mammalian RNA polymerase II elongation complex inhibited by %u03B1-amanitin</annotation_details>
            </half_map>
            <half_map format="CCP4" size_kbytes="67109">
                <file>emd_3981_half_map_2.map.gz</file>
                <symmetry>
                    <space_group>1</space_group>
                </symmetry>
                <data_type>IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)</data_type>
                <dimensions>
                    <col>256</col>
                    <row>256</row>
                    <sec>256</sec>
                </dimensions>
                <origin>
                    <col>0</col>
                    <row>0</row>
                    <sec>0</sec>
                </origin>
                <spacing>
                    <x>256</x>
                    <y>256</y>
                    <z>256</z>
                </spacing>
                <cell>
                    <a units="Å">273.92</a>
                    <b units="Å">273.92</b>
                    <c units="Å">273.92</c>
                    <alpha units="deg">90.0</alpha>
                    <beta units="deg">90.0</beta>
                    <gamma units="deg">90.0</gamma>
                </cell>
                <axis_order>
                    <fast>X</fast>
                    <medium>Y</medium>
                    <slow>Z</slow>
                </axis_order>
                <statistics>
                    <minimum>-0.028367093</minimum>
                    <maximum>0.05924922</maximum>
                    <average>-0.00010533071</average>
                    <std>0.0031144242</std>
                </statistics>
                <pixel_spacing>
                    <x units="Å">1.07</x>
                    <y units="Å">1.07</y>
                    <z units="Å">1.07</z>
                </pixel_spacing>
                <contour_list>
                    <contour primary="true">
                        <source>AUTHOR</source>
                    </contour>
                </contour_list>
                <label>::::EMDATABANK.org::::D_1200007408::::</label>
                <annotation_details>Half-map post-refinement of mammalian RNA polymerase II elongation complex inhibited by %u03B1-amanitin</annotation_details>
            </half_map>
        </half_map_list>
    </interpretation>
</emd>
