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- EMDB-26198: Cryo-EM structure of the Artemis:DNA-PKcs:DNA complex -

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Basic information

Entry
Database: EMDB / ID: EMD-26198
TitleCryo-EM structure of the Artemis:DNA-PKcs:DNA complex
Map data3.77A (FSC = 0.143)
Sample
  • Complex: A complex of Artemis:DNA-PKcs:DNA
    • Protein or peptide: DNA-dependent protein kinase catalytic subunit
    • Protein or peptide: Protein artemis
    • DNA: Y-shape duplex DNA
KeywordsKinase / nuclease / complex / DNA BINDING PROTEIN
Function / homology
Function and homology information


positive regulation of platelet formation / T cell receptor V(D)J recombination / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase activity / histone H2AXS139 kinase activity / DNA-dependent protein kinase complex / immature B cell differentiation / DNA-dependent protein kinase-DNA ligase 4 complex ...positive regulation of platelet formation / T cell receptor V(D)J recombination / pro-B cell differentiation / small-subunit processome assembly / positive regulation of lymphocyte differentiation / DNA-dependent protein kinase activity / histone H2AXS139 kinase activity / DNA-dependent protein kinase complex / immature B cell differentiation / DNA-dependent protein kinase-DNA ligase 4 complex / single-stranded DNA endodeoxyribonuclease activity / immunoglobulin V(D)J recombination / nonhomologous end joining complex / 5'-3' exonuclease activity / regulation of smooth muscle cell proliferation / V(D)J recombination / Cytosolic sensors of pathogen-associated DNA / regulation of epithelial cell proliferation / IRF3-mediated induction of type I IFN / telomere capping / regulation of hematopoietic stem cell differentiation / U3 snoRNA binding / 5'-3' DNA exonuclease activity / T cell lineage commitment / response to ionizing radiation / negative regulation of cGAS/STING signaling pathway / maturation of 5.8S rRNA / B cell lineage commitment / double-strand break repair via alternative nonhomologous end joining / positive regulation of double-strand break repair via nonhomologous end joining / ectopic germ cell programmed cell death / somitogenesis / interstrand cross-link repair / mitotic G1 DNA damage checkpoint signaling / activation of innate immune response / telomere maintenance / B cell differentiation / positive regulation of erythrocyte differentiation / negative regulation of protein phosphorylation / positive regulation of translation / response to gamma radiation / protein-DNA complex / Nonhomologous End-Joining (NHEJ) / small-subunit processome / peptidyl-threonine phosphorylation / protein destabilization / protein modification process / regulation of circadian rhythm / brain development / double-strand break repair via nonhomologous end joining / cellular response to insulin stimulus / intrinsic apoptotic signaling pathway in response to DNA damage / double-strand break repair / rhythmic process / E3 ubiquitin ligases ubiquitinate target proteins / heart development / T cell differentiation in thymus / double-stranded DNA binding / peptidyl-serine phosphorylation / endonuclease activity / adaptive immune response / RNA polymerase II-specific DNA-binding transcription factor binding / transcription regulator complex / chromosome, telomeric region / damaged DNA binding / Hydrolases; Acting on ester bonds / non-specific serine/threonine protein kinase / protein kinase activity / positive regulation of apoptotic process / protein domain specific binding / protein phosphorylation / innate immune response / protein serine kinase activity / protein serine/threonine kinase activity / DNA damage response / chromatin / nucleolus / negative regulation of apoptotic process / Golgi apparatus / enzyme binding / positive regulation of transcription by RNA polymerase II / protein-containing complex / RNA binding / nucleoplasm / ATP binding / membrane / nucleus / cytosol
Similarity search - Function
DNA-dependent protein kinase catalytic subunit, CC3 / DNA-dependent protein kinase catalytic subunit, catalytic domain / DNA-dependent protein kinase catalytic subunit, CC5 / DNA-dependent protein kinase catalytic subunit, CC1/2 / DNA-PKcs, N-terminal / DNA-dependent protein kinase catalytic subunit, CC3 / DNA-PKcs, CC5 / DNA-PKcs, N-terminal / DNA-dependent protein kinase catalytic subunit, CC1/2 / NUC194 ...DNA-dependent protein kinase catalytic subunit, CC3 / DNA-dependent protein kinase catalytic subunit, catalytic domain / DNA-dependent protein kinase catalytic subunit, CC5 / DNA-dependent protein kinase catalytic subunit, CC1/2 / DNA-PKcs, N-terminal / DNA-dependent protein kinase catalytic subunit, CC3 / DNA-PKcs, CC5 / DNA-PKcs, N-terminal / DNA-dependent protein kinase catalytic subunit, CC1/2 / NUC194 / PIK-related kinase, FAT / FAT domain / FATC domain / FATC / FATC domain / PIK-related kinase / FAT domain profile. / FATC domain profile. / DNA repair metallo-beta-lactamase / DNA repair metallo-beta-lactamase / Phosphatidylinositol 3- and 4-kinases signature 1. / Phosphatidylinositol 3/4-kinase, conserved site / Phosphatidylinositol 3- and 4-kinases signature 2. / Phosphatidylinositol 3-/4-kinase, catalytic domain superfamily / Phosphoinositide 3-kinase, catalytic domain / Phosphatidylinositol 3- and 4-kinase / Phosphatidylinositol 3- and 4-kinases catalytic domain profile. / Phosphatidylinositol 3-/4-kinase, catalytic domain / Ribonuclease Z/Hydroxyacylglutathione hydrolase-like / Armadillo-like helical / Armadillo-type fold / Protein kinase-like domain superfamily
Similarity search - Domain/homology
DNA-dependent protein kinase catalytic subunit / Protein artemis
Similarity search - Component
Biological speciesHomo sapiens (human) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.77 Å
AuthorsWatanabe G / Lieber MR / Williams DR
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Cancer Institute (NIH/NCI)CA100504 United States
National Institutes of Health/National Cancer Institute (NIH/NCI)GM118009 United States
CitationJournal: Nucleic Acids Res / Year: 2022
Title: Structural analysis of the basal state of the Artemis:DNA-PKcs complex.
Authors: Go Watanabe / Michael R Lieber / Dewight R Williams /
Abstract: Artemis nuclease and DNA-dependent protein kinase catalytic subunit (DNA-PKcs) are key components in nonhomologous DNA end joining (NHEJ), the major repair mechanism for double-strand DNA breaks. ...Artemis nuclease and DNA-dependent protein kinase catalytic subunit (DNA-PKcs) are key components in nonhomologous DNA end joining (NHEJ), the major repair mechanism for double-strand DNA breaks. Artemis activation by DNA-PKcs resolves hairpin DNA ends formed during V(D)J recombination. Artemis deficiency disrupts development of adaptive immunity and leads to radiosensitive T- B- severe combined immunodeficiency (RS-SCID). An activated state of Artemis in complex with DNA-PK was solved by cryo-EM recently, which showed Artemis bound to the DNA. Here, we report that the pre-activated form (basal state) of the Artemis:DNA-PKcs complex is stable on an agarose-acrylamide gel system, and suitable for cryo-EM structural analysis. Structures show that the Artemis catalytic domain is dynamically positioned externally to DNA-PKcs prior to ABCDE autophosphorylation and show how both the catalytic and regulatory domains of Artemis interact with the N-HEAT and FAT domains of DNA-PKcs. We define a mutually exclusive binding site for Artemis and XRCC4 on DNA-PKcs and show that an XRCC4 peptide disrupts the Artemis:DNA-PKcs complex. All of the findings are useful in explaining how a hypomorphic L3062R missense mutation of DNA-PKcs could lead to insufficient Artemis activation, hence RS-SCID. Our results provide various target site candidates to design disruptors for Artemis:DNA-PKcs complex formation.
History
DepositionFeb 14, 2022-
Header (metadata) releaseFeb 22, 2023-
Map releaseFeb 22, 2023-
UpdateSep 6, 2023-
Current statusSep 6, 2023Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_26198.png

Downloads & links

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Map

FileDownload / File: emd_26198.map.gz / Format: CCP4 / Size: 600.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotation3.77A (FSC = 0.143)
Voxel sizeX=Y=Z: 1.08 Å
Density
Contour LevelBy AUTHOR: 0.2
Minimum - Maximum-1.0107415 - 2.210012
Average (Standard dev.)0.000017623277 (±0.044450913)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions540540540
Spacing540540540
CellA=B=C: 583.2 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_26198_msk_1.map
Projections & Slices
AxesZYX

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Slices (1/2)
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Histogram (log scale)

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Additional map: Blurred map

Fileemd_26198_additional_1.map
AnnotationBlurred map
Projections & Slices
AxesZYX

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Histogram

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Half map: Half Map 1

Fileemd_26198_half_map_1.map
AnnotationHalf Map 1
Projections & Slices
AxesZYX

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Slices (1/2)
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Histogram

Histogram (log scale)

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Half map: Half Map 2

Fileemd_26198_half_map_2.map
AnnotationHalf Map 2
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Histogram (log scale)

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Sample components

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Entire : A complex of Artemis:DNA-PKcs:DNA

EntireName: A complex of Artemis:DNA-PKcs:DNA
Components
  • Complex: A complex of Artemis:DNA-PKcs:DNA
    • Protein or peptide: DNA-dependent protein kinase catalytic subunit
    • Protein or peptide: Protein artemis
    • DNA: Y-shape duplex DNA

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Supramolecule #1: A complex of Artemis:DNA-PKcs:DNA

SupramoleculeName: A complex of Artemis:DNA-PKcs:DNA / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all

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Macromolecule #1: DNA-dependent protein kinase catalytic subunit

MacromoleculeName: DNA-dependent protein kinase catalytic subunit / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO / EC number: non-specific serine/threonine protein kinase
Source (natural)Organism: Homo sapiens (human)
SequenceString: MAGSGAGVRC SLLRLQETLS AADRCGAALA GHQLIRGLGQ ECVLSSSPAV LALQTSLVFS RDFGLLVFVR KSLNSIEFRE CREEILKFLC IFLEKMGQKI APYSVEIKNT CTSVYTKDRA AKCKIPALDL LIKLLQTFRS SRLMDEFKIG ELFSKFYGEL ALKKKIPDTV ...String:
MAGSGAGVRC SLLRLQETLS AADRCGAALA GHQLIRGLGQ ECVLSSSPAV LALQTSLVFS RDFGLLVFVR KSLNSIEFRE CREEILKFLC IFLEKMGQKI APYSVEIKNT CTSVYTKDRA AKCKIPALDL LIKLLQTFRS SRLMDEFKIG ELFSKFYGEL ALKKKIPDTV LEKVYELLGL LGEVHPSEMI NNAENLFRAF LGELKTQMTS AVREPKLPVL AGCLKGLSSL LCNFTKSMEE DPQTSREIFN FVLKAIRPQI DLKRYAVPSA GLRLFALHAS QFSTCLLDNY VSLFEVLLKW CAHTNVELKK AALSALESFL KQVSNMVAKN AEMHKNKLQY FMEQFYGIIR NVDSNNKELS IAIRGYGLFA GPCKVINAKD VDFMYVELIQ RCKQMFLTQT DTGDDRVYQM PSFLQSVASV LLYLDTVPEV YTPVLEHLVV MQIDSFPQYS PKMQLVCCRA IVKVFLALAA KGPVLRNCIS TVVHQGLIRI CSKPVVLPKG PESESEDHRA SGEVRTGKWK VPTYKDYVDL FRHLLSSDQM MDSILADEAF FSVNSSSESL NHLLYDEFVK SVLKIVEKLD LTLEIQTVGE QENGDEAPGV WMIPTSDPAA NLHPAKPKDF SAFINLVEFC REILPEKQAE FFEPWVYSFS YELILQSTRL PLISGFYKLL SITVRNAKKI KYFEGVSPKS LKHSPEDPEK YSCFALFVKF GKEVAVKMKQ YKDELLASCL TFLLSLPHNI IELDVRAYVP ALQMAFKLGL SYTPLAEVGL NALEEWSIYI DRHVMQPYYK DILPCLDGYL KTSALSDETK NNWEVSALSR AAQKGFNKVV LKHLKKTKNL SSNEAISLEE IRIRVVQMLG SLGGQINKNL LTVTSSDEMM KSYVAWDREK RLSFAVPFRE MKPVIFLDVF LPRVTELALT ASDRQTKVAA CELLHSMVMF MLGKATQMPE GGQGAPPMYQ LYKRTFPVLL RLACDVDQVT RQLYEPLVMQ LIHWFTNNKK FESQDTVALL EAILDGIVDP VDSTLRDFCG RCIREFLKWS IKQITPQQQE KSPVNTKSLF KRLYSLALHP NAFKRLGASL AFNNIYREFR EEESLVEQFV FEALVIYMES LALAHADEKS LGTIQQCCDA IDHLCRIIEK KHVSLNKAKK RRLPRGFPPS ASLCLLDLVK WLLAHCGRPQ TECRHKSIEL FYKFVPLLPG NRSPNLWLKD VLKEEGVSFL INTFEGGGCG QPSGILAQPT LLYLRGPFSL QATLCWLDLL LAALECYNTF IGERTVGALQ VLGTEAQSSL LKAVAFFLES IAMHDIIAAE KCFGTGAAGN RTSPQEGERY NYSKCTVVVR IMEFTTTLLN TSPEGWKLLK KDLCNTHLMR VLVQTLCEPA SIGFNIGDVQ VMAHLPDVCV NLMKALKMSP YKDILETHLR EKITAQSIEE LCAVNLYGPD AQVDRSRLAA VVSACKQLHR AGLLHNILPS QSTDLHHSVG TELLSLVYKG IAPGDERQCL PSLDLSCKQL ASGLLELAFA FGGLCERLVS LLLNPAVLST ASLGSSQGSV IHFSHGEYFY SLFSETINTE LLKNLDLAVL ELMQSSVDNT KMVSAVLNGM LDQSFRERAN QKHQGLKLAT TILQHWKKCD SWWAKDSPLE TKMAVLALLA KILQIDSSVS FNTSHGSFPE VFTTYISLLA DTKLDLHLKG QAVTLLPFFT SLTGGSLEEL RRVLEQLIVA HFPMQSREFP PGTPRFNNYV DCMKKFLDAL ELSQSPMLLE LMTEVLCREQ QHVMEELFQS SFRRIARRGS CVTQVGLLES VYEMFRKDDP RLSFTRQSFV DRSLLTLLWH CSLDALREFF STIVVDAIDV LKSRFTKLNE STFDTQITKK MGYYKILDVM YSRLPKDDVH AKESKINQVF HGSCITEGNE LTKTLIKLCY DAFTENMAGE NQLLERRRLY HCAAYNCAIS VICCVFNELK FYQGFLFSEK PEKNLLIFEN LIDLKRRYNF PVEVEVPMER KKKYIEIRKE AREAANGDSD GPSYMSSLSY LADSTLSEEM SQFDFSTGVQ SYSYSSQDPR PATGRFRRRE QRDPTVHDDV LELEMDELNR HECMAPLTAL VKHMHRSLGP PQGEEDSVPR DLPSWMKFLH GKLGNPIVPL NIRLFLAKLV INTEEVFRPY AKHWLSPLLQ LAASENNGGE GIHYMVVEIV ATILSWTGLA TPTGVPKDEV LANRLLNFLM KHVFHPKRAV FRHNLEIIKT LVECWKDCLS IPYRLIFEKF SGKDPNSKDN SVGIQLLGIV MANDLPPYDP QCGIQSSEYF QALVNNMSFV RYKEVYAAAA EVLGLILRYV MERKNILEES LCELVAKQLK QHQNTMEDKF IVCLNKVTKS FPPLADRFMN AVFFLLPKFH GVLKTLCLEV VLCRVEGMTE LYFQLKSKDF VQVMRHRDDE RQKVCLDIIY KMMPKLKPVE LRELLNPVVE FVSHPSTTCR EQMYNILMWI HDNYRDPESE TDNDSQEIFK LAKDVLIQGL IDENPGLQLI IRNFWSHETR LPSNTLDRLL ALNSLYSPKI EVHFLSLATN FLLEMTSMSP DYPNPMFEHP LSECEFQEYT IDSDWRFRST VLTPMFVETQ ASQGTLQTRT QEGSLSARWP VAGQIRATQQ QHDFTLTQTA DGRSSFDWLT GSSTDPLVDH TSPSSDSLLF AHKRSERLQR APLKSVGPDF GKKRLGLPGD EVDNKVKGAA GRTDLLRLRR RFMRDQEKLS LMYARKGVAE QKREKEIKSE LKMKQDAQVV LYRSYRHGDL PDIQIKHSSL ITPLQAVAQR DPIIAKQLFS SLFSGILKEM DKFKTLSEKN NITQKLLQDF NRFLNTTFSF FPPFVSCIQD ISCQHAALLS LDPAAVSAGC LASLQQPVGI RLLEEALLRL LPAELPAKRV RGKARLPPDV LRWVELAKLY RSIGEYDVLR GIFTSEIGTK QITQSALLAE ARSDYSEAAK QYDEALNKQD WVDGEPTEAE KDFWELASLD CYNHLAEWKS LEYCSTASID SENPPDLNKI WSEPFYQETY LPYMIRSKLK LLLQGEADQS LLTFIDKAMH GELQKAILEL HYSQELSLLY LLQDDVDRAK YYIQNGIQSF MQNYSSIDVL LHQSRLTKLQ SVQALTEIQE FISFISKQGN LSSQVPLKRL LNTWTNRYPD AKMDPMNIWD DIITNRCFFL SKIEEKLTPL PEDNSMNVDQ DGDPSDRMEV QEQEEDISSL IRSCKFSMKM KMIDSARKQN NFSLAMKLLK ELHKESKTRD DWLVSWVQSY CRLSHCRSRS QGCSEQVLTV LKTVSLLDEN NVSSYLSKNI LAFRDQNILL GTTYRIIANA LSSEPACLAE IEEDKARRIL ELSGSSSEDS EKVIAGLYQR AFQHLSEAVQ AAEEEAQPPS WSCGPAAGVI DAYMTLADFC DQQLRKEEEN ASVIDSAELQ AYPALVVEKM LKALKLNSNE ARLKFPRLLQ IIERYPEETL SLMTKEISSV PCWQFISWIS HMVALLDKDQ AVAVQHSVEE ITDNYPQAIV YPFIISSESY SFKDTSTGHK NKEFVARIKS KLDQGGVIQD FINALDQLSN PELLFKDWSN DVRAELAKTP VNKKNIEKMY ERMYAALGDP KAPGLGAFRR KFIQTFGKEF DKHFGKGGSK LLRMKLSDFN DITNMLLLKM NKDSKPPGNL KECSPWMSDF KVEFLRNELE IPGQYDGRGK PLPEYHVRIA GFDERVTVMA SLRRPKRIII RGHDEREHPF LVKGGEDLRQ DQRVEQLFQV MNGILAQDSA CSQRALQLRT YSVVPMTSRL GLIEWLENTV TLKDLLLNTM SQEEKAAYLS DPRAPPCEYK DWLTKMSGKH DVGAYMLMYK GANRTETVTS FRKRESKVPA DLLKRAFVRM STSPEAFLAL RSHFASSHAL ICISHWILGI GDRHLNNFMV AMETGGVIGI DFGHAFGSAT QFLPVPELMP FRLTRQFINL MLPMKETGLM YSIMVHALRA FRSDPGLLTN TMDVFVKEPS FDWKNFEQKM LKKGGSWIQE INVAEKNWYP RQKICYAKRK LAGANPAVIT CDELLLGHEK APAFRDYVAV ARGSKDHNIR AQEPESGLSE ETQVKCLMDQ ATDPNILGRT WEGWEPWM

UniProtKB: DNA-dependent protein kinase catalytic subunit

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Macromolecule #2: Protein artemis

MacromoleculeName: Protein artemis / type: protein_or_peptide / ID: 2 / Enantiomer: LEVO / EC number: Hydrolases; Acting on ester bonds
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MSSFEGQMAE YPTISIDRFD RENLRARAYF LSHCHKDHMK GLRAPTLKRR LECSLKVYLY CSPVTKELLL TSPKYRFWKK RIISIEIETP TQISLVDEAS GEKEEIVVTL LPAGHCPGSV MFLFQGNNGT VLYTGDFRLA QGEAARMELL HSGGRVKDIQ SVYLDTTFCD ...String:
MSSFEGQMAE YPTISIDRFD RENLRARAYF LSHCHKDHMK GLRAPTLKRR LECSLKVYLY CSPVTKELLL TSPKYRFWKK RIISIEIETP TQISLVDEAS GEKEEIVVTL LPAGHCPGSV MFLFQGNNGT VLYTGDFRLA QGEAARMELL HSGGRVKDIQ SVYLDTTFCD PRFYQIPSRE ECLSGVLELV RSWITRSPYH VVWLNCKAAY GYEYLFTNLS EELGVQVHVN KLDMFRNMPE ILHHLTTDRN TQIHACRHPK AEEYFQWSKL PCGITSRNRI PLHIISIKPS TMWFGERSRK TNVIVRTGES SYRACFSFHS SYSEIKDFLS YLCPVNAYPN VIPVGTTMDK VVEILKPLCR SSQSTEPKYK PLGKLKRART VHRDSEEEDD YLFDDPLPIP LRHKVPYPET FHPEVFSMTA VSEKQPEKLR QTPGCCRAEC MQSSRFTNFV DCEESNSESE EEVGIPASLQ GDLGSVLHLQ KADGDVPQWE VFFKRNDEIT DESLENFPSS TVAGGSQSPK LFSDSDGEST HISSQNSSQS THITEQGSQG WDSQSDTVLL SSQERNSGDI TSLDKADYRP TIKENIPASL MEQNVICPKD TYSDLKSRDK DVTIVPSTGE PTTLSSETHI PEEKSLLNLS TNADSQSSSD FEVPSTPEAE LPKREHLQYL YEKLATGESI AVKKRKCSLL DTENLYFQGH HHHHHHH

UniProtKB: Protein artemis

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Macromolecule #3: Y-shape duplex DNA

MacromoleculeName: Y-shape duplex DNA / type: dna / ID: 3
Details: This oligo forms Y-shape double hairpins at the closed end and an open pseudo-Y-shape with short overhangs at the open end.
Classification: DNA
Source (natural)Organism: synthetic construct (others)
SequenceString:
TTTGGGTGGA GCGCGGGCGT TTTTAGTTTA TTGGGCGCGT TTCGCGCCCA GCTTTCCCAG CTAATAAACT AAAAACGCCC GCGCTCCACC CT

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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

BufferpH: 7.5
Component:
ConcentrationFormulaName
25.0 mMTris-HCltris(hydroxymethyl)aminomethane
100.0 mMNaClSodium chloride
2.0 mMDTT1,4-Dithiothreitol
5.5 nMLMNGLauryl maltose neopentyl glycol
GridModel: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 40 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.03 kPa
VitrificationCryogen name: ETHANE / Chamber humidity: 73 % / Chamber temperature: 295 K
Details: Plunge-freeze was performed using a home-made manual plunger at typical indoor humidity (Los Angeles, CA) and at room temperature..
DetailsThis sample was monodisperse.

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Average exposure time: 3.0 sec. / Average electron dose: 45.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 100.0 µm / Calibrated magnification: 46296 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.25 µm / Nominal defocus min: 0.75 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

Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.77 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 3.2.0+210511) / Number images used: 190398
Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: COMMON LINE
FSC plot (resolution estimation)

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