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- EMDB-50295: Structure of Pol II-TC-NER-STK19 complex, focused on CRL4CSA -

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Basic information

Entry
Database: EMDB / ID: EMD-50295
TitleStructure of Pol II-TC-NER-STK19 complex, focused on CRL4CSA
Map datasharpened map (cryoSPARC)
Sample
  • Complex: Ternary complex of Pol II-TC-NER-STK19, focused on CRL4CSA
    • Protein or peptide: DNA excision repair protein ERCC-8
    • Protein or peptide: DNA damage-binding protein 1
    • Protein or peptide: DET1- and DDB1-associated protein 1
    • Protein or peptide: Cullin-4A
    • Protein or peptide: E3 ubiquitin-protein ligase RBX1
    • Protein or peptide: NEDD8
KeywordsTranscription-coupled DNA repair / TRANSCRIPTION
Function / homology
Function and homology information


regulation of transcription-coupled nucleotide-excision repair / nucleotide-excision repair complex / negative regulation of granulocyte differentiation / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / single strand break repair / cellular response to chemical stress / regulation of DNA damage checkpoint / Cul7-RING ubiquitin ligase complex ...regulation of transcription-coupled nucleotide-excision repair / nucleotide-excision repair complex / negative regulation of granulocyte differentiation / cullin-RING-type E3 NEDD8 transferase / NEDD8 transferase activity / cullin-RING ubiquitin ligase complex / single strand break repair / cellular response to chemical stress / regulation of DNA damage checkpoint / Cul7-RING ubiquitin ligase complex / positive regulation by virus of viral protein levels in host cell / ubiquitin-dependent protein catabolic process via the C-end degron rule pathway / Loss of Function of FBXW7 in Cancer and NOTCH1 Signaling / double-strand break repair via classical nonhomologous end joining / spindle assembly involved in female meiosis / regulation of nucleotide-excision repair / epigenetic programming in the zygotic pronuclei / positive regulation of protein autoubiquitination / Cul4-RING E3 ubiquitin ligase complex / protein neddylation / UV-damage excision repair / NEDD8 ligase activity / negative regulation of response to oxidative stress / Cul5-RING ubiquitin ligase complex / biological process involved in interaction with symbiont / regulation of mitotic cell cycle phase transition / SCF ubiquitin ligase complex / WD40-repeat domain binding / Cul2-RING ubiquitin ligase complex / ubiquitin-ubiquitin ligase activity / negative regulation of type I interferon production / Cul4A-RING E3 ubiquitin ligase complex / SCF-dependent proteasomal ubiquitin-dependent protein catabolic process / Cul3-RING ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / negative regulation of mitophagy / Prolactin receptor signaling / negative regulation of reproductive process / negative regulation of developmental process / TGF-beta receptor signaling activates SMADs / cullin family protein binding / hemopoiesis / viral release from host cell / regulation of proteolysis / regulation of postsynapse assembly / somatic stem cell population maintenance / anatomical structure morphogenesis / protein monoubiquitination / response to X-ray / ectopic germ cell programmed cell death / positive regulation of G1/S transition of mitotic cell cycle / positive regulation of viral genome replication / protein K48-linked ubiquitination / proteasomal protein catabolic process / transcription-coupled nucleotide-excision repair / response to UV / protein autoubiquitination / Nuclear events stimulated by ALK signaling in cancer / Regulation of BACH1 activity / regulation of cellular response to insulin stimulus / positive regulation of gluconeogenesis / positive regulation of TORC1 signaling / post-translational protein modification / intrinsic apoptotic signaling pathway / negative regulation of insulin receptor signaling pathway / positive regulation of DNA repair / T cell activation / Degradation of DVL / Iron uptake and transport / Recognition of DNA damage by PCNA-containing replication complex / Degradation of GLI1 by the proteasome / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / Negative regulation of NOTCH4 signaling / Vif-mediated degradation of APOBEC3G / Hedgehog 'on' state / DNA Damage Recognition in GG-NER / Degradation of GLI2 by the proteasome / GLI3 is processed to GLI3R by the proteasome / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / nucleotide-excision repair / cellular response to amino acid stimulus / Degradation of beta-catenin by the destruction complex / Evasion by RSV of host interferon responses / modification-dependent protein catabolic process / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / NOTCH1 Intracellular Domain Regulates Transcription / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / negative regulation of canonical Wnt signaling pathway / G1/S transition of mitotic cell cycle / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / Formation of Incision Complex in GG-NER / protein tag activity / regulation of circadian rhythm / Regulation of expression of SLITs and ROBOs / protein modification process / RING-type E3 ubiquitin transferase
Similarity search - Function
DET1- and DDB1-associated protein 1, N-terminal / DET1- and DDB1-associated protein 1 / Det1 complexing ubiquitin ligase / DNA excision repair protein Rad28/ERCC8/Ckn1/ATCSA-1 / Nedd8-like ubiquitin / Zinc finger, RING-H2-type / RING-H2 zinc finger domain / Cullin protein neddylation domain / : / Cullin, conserved site ...DET1- and DDB1-associated protein 1, N-terminal / DET1- and DDB1-associated protein 1 / Det1 complexing ubiquitin ligase / DNA excision repair protein Rad28/ERCC8/Ckn1/ATCSA-1 / Nedd8-like ubiquitin / Zinc finger, RING-H2-type / RING-H2 zinc finger domain / Cullin protein neddylation domain / : / Cullin, conserved site / Cullin family signature. / Cullin repeat-like-containing domain superfamily / Cullin protein, neddylation domain / Cullin / Cullin protein neddylation domain / Cullin / Cullin, N-terminal / Cullin homology domain / Cullin homology domain superfamily / Cullin family / Cullin family profile. / RSE1/DDB1/CPSF1 second beta-propeller / Cleavage/polyadenylation specificity factor, A subunit, C-terminal / Cleavage/polyadenylation specificity factor, A subunit, N-terminal / : / CPSF A subunit region / RSE1/DDB1/CPSF1 first beta-propeller / : / Ubiquitin domain / Ubiquitin domain signature. / Ubiquitin conserved site / Zinc finger RING-type profile. / Zinc finger, RING-type / Ubiquitin family / Ubiquitin homologues / Ubiquitin domain profile. / Ubiquitin-like domain / WD domain, G-beta repeat / Zinc finger, RING/FYVE/PHD-type / Ubiquitin-like domain superfamily / G-protein beta WD-40 repeat / Winged helix DNA-binding domain superfamily / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / Winged helix-like DNA-binding domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
E3 ubiquitin-protein ligase RBX1 / DNA excision repair protein ERCC-8 / Cullin-4A / Ubiquitin-like protein NEDD8 / DNA damage-binding protein 1 / DET1- and DDB1-associated protein 1
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.7 Å
AuthorsLee S-H / Sixma TK
Funding support Netherlands, 2 items
OrganizationGrant numberCountry
Netherlands Organisation for Scientific Research (NWO)TOP 714.017.003 Netherlands
Oncode Institute Netherlands
CitationJournal: Mol Cell / Year: 2024
Title: STK19 drives transcription-coupled repair by stimulating repair complex stability, RNA Pol II ubiquitylation, and TFIIH recruitment.
Authors: Anisha R Ramadhin / Shun-Hsiao Lee / Di Zhou / Anita Salmazo / Camila Gonzalo-Hansen / Marjolein van Sluis / Cindy M A Blom / Roel C Janssens / Anja Raams / Dick Dekkers / Karel Bezstarosti ...Authors: Anisha R Ramadhin / Shun-Hsiao Lee / Di Zhou / Anita Salmazo / Camila Gonzalo-Hansen / Marjolein van Sluis / Cindy M A Blom / Roel C Janssens / Anja Raams / Dick Dekkers / Karel Bezstarosti / Dea Slade / Wim Vermeulen / Alex Pines / Jeroen A A Demmers / Carrie Bernecky / Titia K Sixma / Jurgen A Marteijn /
Abstract: Transcription-coupled nucleotide excision repair (TC-NER) efficiently eliminates DNA damage that impedes gene transcription by RNA polymerase II (RNA Pol II). TC-NER is initiated by the recognition ...Transcription-coupled nucleotide excision repair (TC-NER) efficiently eliminates DNA damage that impedes gene transcription by RNA polymerase II (RNA Pol II). TC-NER is initiated by the recognition of lesion-stalled RNA Pol II by CSB, which recruits the CRL4 ubiquitin ligase and UVSSA. RNA Pol II ubiquitylation at RPB1-K1268 by CRL4 serves as a critical TC-NER checkpoint, governing RNA Pol II stability and initiating DNA damage excision by TFIIH recruitment. However, the precise regulatory mechanisms of CRL4 activity and TFIIH recruitment remain elusive. Here, we reveal human serine/threonine-protein kinase 19 (STK19) as a TC-NER factor, which is essential for correct DNA damage removal and subsequent transcription restart. Cryogenic electron microscopy (cryo-EM) studies demonstrate that STK19 is an integral part of the RNA Pol II-TC-NER complex, bridging CSA, UVSSA, RNA Pol II, and downstream DNA. STK19 stimulates TC-NER complex stability and CRL4 activity, resulting in efficient RNA Pol II ubiquitylation and correct UVSSA and TFIIH binding. These findings underscore the crucial role of STK19 as a core TC-NER component.
History
DepositionMay 14, 2024-
Header (metadata) releaseNov 13, 2024-
Map releaseNov 13, 2024-
UpdateJan 8, 2025-
Current statusJan 8, 2025Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_50295.png

Downloads & links

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Map

FileDownload / File: emd_50295.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationsharpened map (cryoSPARC)
Projections & slices

Image control

Size
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Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.06 Å/pix.
x 400 pix.
= 424. Å		1.06 Å/pix.
x 400 pix.
= 424. Å		1.06 Å/pix.
x 400 pix.
= 424. Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.06 Å
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Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.12
Minimum - Maximum-0.27559698 - 0.6254799
Average (Standard dev.)-0.00008229284 (±0.016498769)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 423.99997 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_50295_msk_1.map
Projections & Slices
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Additional map: raw map

Fileemd_50295_additional_1.map
Annotationraw map
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Half map: half map A

Fileemd_50295_half_map_1.map
Annotationhalf map A
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Half map: half map B

Fileemd_50295_half_map_2.map
Annotationhalf map B
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Sample components

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Entire : Ternary complex of Pol II-TC-NER-STK19, focused on CRL4CSA

EntireName: Ternary complex of Pol II-TC-NER-STK19, focused on CRL4CSA
Components
  • Complex: Ternary complex of Pol II-TC-NER-STK19, focused on CRL4CSA
    • Protein or peptide: DNA excision repair protein ERCC-8
    • Protein or peptide: DNA damage-binding protein 1
    • Protein or peptide: DET1- and DDB1-associated protein 1
    • Protein or peptide: Cullin-4A
    • Protein or peptide: E3 ubiquitin-protein ligase RBX1
    • Protein or peptide: NEDD8

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Supramolecule #1: Ternary complex of Pol II-TC-NER-STK19, focused on CRL4CSA

SupramoleculeName: Ternary complex of Pol II-TC-NER-STK19, focused on CRL4CSA
type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 300 KDa

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Macromolecule #1: DNA excision repair protein ERCC-8

MacromoleculeName: DNA excision repair protein ERCC-8 / type: protein_or_peptide / ID: 1
Details: The construct contains a Strep tag II at the C-terminus
Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MLGFLSARQT GLEDPLRLRR AESTRRVLGL ELNKDRDVER IHGGGINTLD IEPVEGRYML SGGSDGVIVL YDLENSSRQS YYTCKAVCSI GRDHPDVHRY SVETVQWYPH DTGMFTSSSF DKTLKVWDTN TLQTADVFNF EETVYSHHMS PVSTKHCLVA VGTRGPKVQL ...String:
MLGFLSARQT GLEDPLRLRR AESTRRVLGL ELNKDRDVER IHGGGINTLD IEPVEGRYML SGGSDGVIVL YDLENSSRQS YYTCKAVCSI GRDHPDVHRY SVETVQWYPH DTGMFTSSSF DKTLKVWDTN TLQTADVFNF EETVYSHHMS PVSTKHCLVA VGTRGPKVQL CDLKSGSCSH ILQGHRQEIL AVSWSPRYDY ILATASADSR VKLWDVRRAS GCLITLDQHN GKKSQAVESA NTAHNGKVNG LCFTSDGLHL LTVGTDNRMR LWNSSNGENT LVNYGKVCNN SKKGLKFTVS CGCSSEFVFV PYGSTIAVYT VYSGEQITML KGHYKTVDCC VFQSNFQELY SGSRDCNILA WVPSLYEPVP DDDETTTKSQ LNPAFEDAWS SSDEEGGTSA WSHPQFEK

UniProtKB: DNA excision repair protein ERCC-8

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Macromolecule #2: DNA damage-binding protein 1

MacromoleculeName: DNA damage-binding protein 1 / type: protein_or_peptide / ID: 2 / Details: The construct contains a His tag at the N-terminus / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MAHHHHHHSA ALEVLFQGPG MSYNYVVTAQ KPTAVNGCVT GHFTSAEDLN LLIAKNTRLE IYVVTAEGLR PVKEVGMYGK IAVMELFRPK GESKDLLFIL TAKYNACILE YKQSGESIDI ITRAHGNVQD RIGRPSETGI IGIIDPECRM IGLRLYDGLF KVIPLDRDNK ...String:
MAHHHHHHSA ALEVLFQGPG MSYNYVVTAQ KPTAVNGCVT GHFTSAEDLN LLIAKNTRLE IYVVTAEGLR PVKEVGMYGK IAVMELFRPK GESKDLLFIL TAKYNACILE YKQSGESIDI ITRAHGNVQD RIGRPSETGI IGIIDPECRM IGLRLYDGLF KVIPLDRDNK ELKAFNIRLE ELHVIDVKFL YGCQAPTICF VYQDPQGRHV KTYEVSLREK EFNKGPWKQE NVEAEASMVI AVPEPFGGAI IIGQESITYH NGDKYLAIAP PIIKQSTIVC HNRVDPNGSR YLLGDMEGRL FMLLLEKEEQ MDGTVTLKDL RVELLGETSI AECLTYLDNG VVFVGSRLGD SQLVKLNVDS NEQGSYVVAM ETFTNLGPIV DMCVVDLERQ GQGQLVTCSG AFKEGSLRII RNGIGIHEHA SIDLPGIKGL WPLRSDPNRE TDDTLVLSFV GQTRVLMLNG EEVEETELMG FVDDQQTFFC GNVAHQQLIQ ITSASVRLVS QEPKALVSEW KEPQAKNISV ASCNSSQVVV AVGRALYYLQ IHPQELRQIS HTEMEHEVAC LDITPLGDSN GLSPLCAIGL WTDISARILK LPSFELLHKE MLGGEIIPRS ILMTTFESSH YLLCALGDGA LFYFGLNIET GLLSDRKKVT LGTQPTVLRT FRSLSTTNVF ACSDRPTVIY SSNHKLVFSN VNLKEVNYMC PLNSDGYPDS LALANNSTLT IGTIDEIQKL HIRTVPLYES PRKICYQEVS QCFGVLSSRI EVQDTSGGTT ALRPSASTQA LSSSVSSSKL FSSSTAPHET SFGEEVEVHN LLIIDQHTFE VLHAHQFLQN EYALSLVSCK LGKDPNTYFI VGTAMVYPEE AEPKQGRIVV FQYSDGKLQT VAEKEVKGAV YSMVEFNGKL LASINSTVRL YEWTTEKELR TECNHYNNIM ALYLKTKGDF ILVGDLMRSV LLLAYKPMEG NFEEIARDFN PNWMSAVEIL DDDNFLGAEN AFNLFVCQKD SAATTDEERQ HLQEVGLFHL GEFVNVFCHG SLVMQNLGET STPTQGSVLF GTVNGMIGLV TSLSESWYNL LLDMQNRLNK VIKSVGKIEH SFWRSFHTER KTEPATGFID GDLIESFLDI SRPKMQEVVA NLQYDDGSGM KREATADDLI KVVEELTRIH

UniProtKB: DNA damage-binding protein 1

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Macromolecule #3: DET1- and DDB1-associated protein 1

MacromoleculeName: DET1- and DDB1-associated protein 1 / type: protein_or_peptide / ID: 3
Details: The construct contains a twin Strep tag and a flag tag at the C-terminus
Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MADFLKGLPV YNKSNFSRFH ADSVCKASNR RPSVYLPTRE YPSEQIIVTE KTNILLRYLH QQWDKKNAAK KRDQEQVELE GESSAPPRKV ARTDSPDMHE DTDVLFQGPG AWSHPQFEKG GGSGGGSGGG SWSHPQFEKG ASGEDYKDDD DK

UniProtKB: DET1- and DDB1-associated protein 1

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Macromolecule #4: Cullin-4A

MacromoleculeName: Cullin-4A / type: protein_or_peptide / ID: 4
Details: The first three residues (Gly, Pro, Gly) are residual residues after 3C protease treatment. The coding sequence of CUL4A starts from residue 4. CUL4A K705 is modified by NEDD8.
Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: GPGMADEAPR KGSFSALVGR TNGLTKPAAL AAAPAKPGGA GGSKKLVIKN FRDRPRLPDN YTQDTWRKLH EAVRAVQSST SIRYNLEELY QAVENLCSHK VSPMLYKQLR QACEDHVQAQ ILPFREDSLD SVLFLKKINT CWQDHCRQMI MIRSIFLFLD RTYVLQNSTL ...String:
GPGMADEAPR KGSFSALVGR TNGLTKPAAL AAAPAKPGGA GGSKKLVIKN FRDRPRLPDN YTQDTWRKLH EAVRAVQSST SIRYNLEELY QAVENLCSHK VSPMLYKQLR QACEDHVQAQ ILPFREDSLD SVLFLKKINT CWQDHCRQMI MIRSIFLFLD RTYVLQNSTL PSIWDMGLEL FRTHIISDKM VQSKTIDGIL LLIERERSGE AVDRSLLRSL LGMLSDLQVY KDSFELKFLE ETNCLYAAEG QRLMQEREVP EYLNHVSKRL EEEGDRVITY LDHSTQKPLI ACVEKQLLGE HLTAILQKGL DHLLDENRVP DLAQMYQLFS RVRGGQQALL QHWSEYIKTF GTAIVINPEK DKDMVQDLLD FKDKVDHVIE VCFQKNERFV NLMKESFETF INKRPNKPAE LIAKHVDSKL RAGNKEATDE ELERTLDKIM ILFRFIHGKD VFEAFYKKDL AKRLLVGKSA SVDAEKSMLS KLKHECGAAF TSKLEGMFKD MELSKDIMVH FKQHMQNQSD SGPIDLTVNI LTMGYWPTYT PMEVHLTPEM IKLQEVFKAF YLGKHSGRKL QWQTTLGHAV LKAEFKEGKK EFQVSLFQTL VLLMFNEGDG FSFEEIKMAT GIEDSELRRT LQSLACGKAR VLIKSPKGKE VEDGDKFIFN GEFKHKLFRI KINQIQMKET VEEQVSTTER VFQDRQYQID AAIVRIMKMR KTLGHNLLVS ELYNQLKFPV KPGDLKKRIE SLIDRDYMER DKDNPNQYHY VA

UniProtKB: Cullin-4A

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Macromolecule #5: E3 ubiquitin-protein ligase RBX1

MacromoleculeName: E3 ubiquitin-protein ligase RBX1 / type: protein_or_peptide / ID: 5
Details: The first three residues (Gly, Pro, Gly) are residual residues after 3C protease treatment. The coding sequence of RBX1 starts from residue 4.
Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
GPGMAAAMDV DTPSGTNSGA GKKRFEVKKW NAVALWAWDI VVDNCAICRN HIMDLCIECQ ANQASATSEE CTVAWGVCNH AFHFHCISRW LKTRQVCPLD NREWEFQKYG H

UniProtKB: E3 ubiquitin-protein ligase RBX1

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Macromolecule #6: NEDD8

MacromoleculeName: NEDD8 / type: protein_or_peptide / ID: 6
Details: Residue 1 (Ser) comes from linker, the coding sequence of NEDD8 starts from residue 2 (Met).
Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
SMLIKVKTLT GKEIEIDIEP TDKVERIKER VEEKEGIPPQ QQRLIYSGKQ MNDEKTAADY KILGGSVLHL VLALRGG

UniProtKB: Ubiquitin-like protein NEDD8

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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

Concentration0.15 mg/mL
BufferpH: 7.5
Component:
ConcentrationFormulaName
20.0 mMHEPESHEPES
100.0 mMNaClsodium chloride
2.0 mMMgCl2magnesium chloride
10.0 uMZnSO4zinc sulfate
1.0 mMTCEPtris(2-carboxyethyl)phosphine
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV
DetailsThe final concentration of Pol II is around 0.15 mg/ml. The other components were added in different molar ratio. This sample was glutaraldehyde crosslinked.

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Slit width: 20 eV
DetailsCollected on Krios 1 at Netherlands Center for Electron Nanoscopy (NeCEN)
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number grids imaged: 2 / Number real images: 13029 / Average exposure time: 3.43 sec. / Average electron dose: 50.0 e/Å2
Details: Two datasets were collected from the same sample using the same parameters.
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 81000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 2866913 / Details: Particles were combined from two datasets.
Startup modelType of model: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.7 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 55907
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC
FSC plot (resolution estimation)

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