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Yorodumi- EMDB-15654: Structure of the giant inhibitor of apoptosis, BIRC6 bound to the... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-15654 | |||||||||
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Title | Structure of the giant inhibitor of apoptosis, BIRC6 bound to the regulator SMAC | |||||||||
Map data | Sharpened map from non-uniform refinement | |||||||||
Sample |
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Keywords | E2/E3 ubiquitin ligase / APOPTOSIS | |||||||||
Function / homology | Function and homology information : / spongiotrophoblast layer development / Release of apoptotic factors from the mitochondria / CD40 receptor complex / labyrinthine layer development / ALK mutants bind TKIs / SMAC, XIAP-regulated apoptotic response / Flemming body / Regulation of the apoptosome activity / SMAC (DIABLO) binds to IAPs ...: / spongiotrophoblast layer development / Release of apoptotic factors from the mitochondria / CD40 receptor complex / labyrinthine layer development / ALK mutants bind TKIs / SMAC, XIAP-regulated apoptotic response / Flemming body / Regulation of the apoptosome activity / SMAC (DIABLO) binds to IAPs / SMAC(DIABLO)-mediated dissociation of IAP:caspase complexes / microtubule organizing center / intrinsic apoptotic signaling pathway in response to oxidative stress / cysteine-type endopeptidase inhibitor activity / ubiquitin conjugating enzyme activity / extrinsic apoptotic signaling pathway via death domain receptors / intrinsic apoptotic signaling pathway / regulation of cytokinesis / negative regulation of extrinsic apoptotic signaling pathway / trans-Golgi network / RING-type E3 ubiquitin transferase / : / mitochondrial intermembrane space / spindle pole / cytoplasmic side of plasma membrane / ubiquitin-protein transferase activity / Signaling by ALK fusions and activated point mutants / regulation of cell population proliferation / midbody / neuron apoptotic process / cell population proliferation / endosome / protein ubiquitination / positive regulation of apoptotic process / protein phosphorylation / cell division / centrosome / positive regulation of cell population proliferation / negative regulation of apoptotic process / apoptotic process / mitochondrion / membrane / nucleus / cytosol Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.0 Å | |||||||||
Authors | Dietz L / Elliott PR | |||||||||
Funding support | United Kingdom, 1 items
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Citation | Journal: Science / Year: 2023 Title: Structural basis for SMAC-mediated antagonism of caspase inhibition by the giant ubiquitin ligase BIRC6. Authors: Larissa Dietz / Cara J Ellison / Carlos Riechmann / C Keith Cassidy / F Daniel Felfoldi / Adán Pinto-Fernández / Benedikt M Kessler / Paul R Elliott / Abstract: Certain inhibitor of apoptosis (IAP) family members are sentinel proteins that prevent untimely cell death by inhibiting caspases. Antagonists, including second mitochondria-derived activator of ...Certain inhibitor of apoptosis (IAP) family members are sentinel proteins that prevent untimely cell death by inhibiting caspases. Antagonists, including second mitochondria-derived activator of caspases (SMAC), regulate IAPs and drive cell death. Baculoviral IAP repeat-containing protein 6 (BIRC6), a giant IAP with dual E2 and E3 ubiquitin ligase activity, regulates programmed cell death through unknown mechanisms. We show that BIRC6 directly restricts executioner caspase-3 and -7 and ubiquitinates caspase-3, -7, and -9, working exclusively with noncanonical E1, UBA6. Notably, we show that SMAC suppresses both mechanisms. Cryo-electron microscopy structures of BIRC6 alone and in complex with SMAC reveal that BIRC6 is an antiparallel dimer juxtaposing the substrate-binding module against the catalytic domain. Furthermore, we discover that SMAC multisite binding to BIRC6 results in a subnanomolar affinity interaction, enabling SMAC to competitively displace caspases, thus antagonizing BIRC6 anticaspase function. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_15654.map.gz | 95.6 MB | EMDB map data format | |
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Header (meta data) | emd-15654-v30.xml emd-15654.xml | 22.3 KB 22.3 KB | Display Display | EMDB header |
Images | emd_15654.png | 74.8 KB | ||
Masks | emd_15654_msk_1.map | 103 MB | Mask map | |
Filedesc metadata | emd-15654.cif.gz | 9 KB | ||
Others | emd_15654_half_map_1.map.gz emd_15654_half_map_2.map.gz | 95.7 MB 95.7 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-15654 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-15654 | HTTPS FTP |
-Validation report
Summary document | emd_15654_validation.pdf.gz | 1.3 MB | Display | EMDB validaton report |
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Full document | emd_15654_full_validation.pdf.gz | 1.3 MB | Display | |
Data in XML | emd_15654_validation.xml.gz | 13.5 KB | Display | |
Data in CIF | emd_15654_validation.cif.gz | 15.7 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-15654 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-15654 | HTTPS FTP |
-Related structure data
Related structure data | 8atoMC 8atmC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_15654.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Annotation | Sharpened map from non-uniform refinement | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.829 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
File | emd_15654_msk_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: First half map non-uniform refinement
File | emd_15654_half_map_1.map | ||||||||||||
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Annotation | First half map non-uniform refinement | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Second half map non-uniform refinement
File | emd_15654_half_map_2.map | ||||||||||||
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Annotation | Second half map non-uniform refinement | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Anti-parallel homodimer
Entire | Name: Anti-parallel homodimer |
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Components |
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-Supramolecule #1: Anti-parallel homodimer
Supramolecule | Name: Anti-parallel homodimer / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Molecular weight | Theoretical: 1 MDa |
-Supramolecule #2: Baculoviral IAP repeat-containing protein 6
Supramolecule | Name: Baculoviral IAP repeat-containing protein 6 / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1 |
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Source (natural) | Organism: Homo sapiens (human) |
-Supramolecule #3: Diablo IAP-binding mitochondrial protein
Supramolecule | Name: Diablo IAP-binding mitochondrial protein / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2 |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Baculoviral IAP repeat-containing protein 6
Macromolecule | Name: Baculoviral IAP repeat-containing protein 6 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: RING-type E3 ubiquitin transferase |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 530.977 KDa |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
Sequence | String: GPMVTGGGAA PPGTVTEPLP SVIVLSAGRK MAAAAAAASG PGCSSAAGAG AAGVSEWLVL RDGCMHCDAD GLHSLSYHPA LNAILAVTS RGTIKVIDGT SGATLQASAL SAKPGGQVKC QYISAVDKVI FVDDYAVGCR KDLNGILLLD TALQTPVSKQ D DVVQLELP ...String: GPMVTGGGAA PPGTVTEPLP SVIVLSAGRK MAAAAAAASG PGCSSAAGAG AAGVSEWLVL RDGCMHCDAD GLHSLSYHPA LNAILAVTS RGTIKVIDGT SGATLQASAL SAKPGGQVKC QYISAVDKVI FVDDYAVGCR KDLNGILLLD TALQTPVSKQ D DVVQLELP VTEAQQLLSA CLEKVDISST EGYDLFITQL KDGLKNTSHE TAANHKVAKW ATVTFHLPHH VLKSIASAIV NE LKKINQN VAALPVASSV MDRLSYLLPS ARPELGVGPG RSVDRSLMYS EANRRETFTS WPHVGYRWAQ PDPMAQAGFY HQP ASSGDD RAMCFTCSVC LVCWEPTDEP WSEHERHSPN CPFVKGEHTQ NVPLSVTLAT SPAQFPCTDG TDRISCFGSG SCPH FLAAA TKRGKICIWD VSKLMKVHLK FEINAYDPAI VQQLILSGDP SSGVDSRRPT LAWLEDSSSC SDIPKLEGDS DDLLE DSDS EEHSRSDSVT GHTSQKEAME VSLDITALSI LQQPEKLQWE IVANVLEDTV KDLEELGANP CLTNSKSEKT KEKHQE QHN IPFPCLLAGG LLTYKSPATS PISSNSHRSL DGLSRTQGES ISEQGSTDNE SCTNSELNSP LVRRTLPVLL LYSIKES DE KAGKIFSQMN NIMSKSLHDD GFTVPQIIEM ELDSQEQLLL QDPPVTYIQQ FADAAANLTS PDSEKWNSVF PKPGTLVQ C LRLPKFAEEE NLCIDSITPC ADGIHLLVGL RTCPVESLSA INQVEALNNL NKLNSALCNR RKGELESNLA VVNGANISV IQHESPADVQ TPLIIQPEQR NVSGGYLVLY KMNYATRIVT LEEEPIKIQH IKDPQDTITS LILLPPDILD NREDDCEEPI EDMQLTSKN GFEREKTSDI STLGHLVITT QGGYVKILDL SNFEILAKVE PPKKEGTEEQ DTFVSVIYCS GTDRLCACTK G GELHFLQI GGTCDDIDEA DILVDGSLSK GIEPSSEGSK PLSNPSSPGI SGVDLLVDQP FTLEILTSLV ELTRFETLTP RF SATVPPC WVEVQQEQQQ RRHPQHLHQQ HHGDAAQHTR TWKLQTDSNS WDEHVFELVL PKACMVGHVD FKFVLNSNIT NIP QIQVTL LKNKAPGLGK VNALNIEVEQ NGKPSLVDLN EEMQHMDVEE SQCLRLCPFL EDHKEDILCG PVWLASGLDL SGHA GMLTL TSPKLVKGMA GGKYRSFLIH VKAVNERGTE EICNGGMRPV VRLPSLKHQS NKGYSLASLL AKVAAGKEKS SNVKN ENTS GTRKSENLRG CDLLQEVSVT IRRFKKTSIS KERVQRCAML QFSEFHEKLL NTLCRKTDDG QITEHAQSLV LDTLCW LAG VHSNGPGSSK EGNENLLSKT RKFLSDIVRV CFFEAGRSIA HKCARFLALC ISNGKCDPCQ PAFGPVLLKA LLDNMSF LP AATTGGSVYW YFVLLNYVKD EDLAGCSTAC ASLLTAVSRQ LQDRLTPMEA LLQTRYGLYS SPFDPVLFDL EMSGSSCK N VYNSSIGVQS DEIDLSDVLS GNGKVSSCTA AEGSFTSLTG LLEVEPLHFT CVSTSDGTRI ERDDAMSSFG VTPAVGGLS SGTVGEASTA LSSAAQVALQ SLSHAMASAE QQLQVLQEKQ QQLLKLQQQK AKLEAKLHQT TAAAAAAASA VGPVHNSVPS NPVAAPGFF IHPSDVIPPT PKTTPLFMTP PLTPPNEAVS VVINAELAQL FPGSVIDPPA VNLAAHNKNS NKSRMNPLGS G LALAISHA SHFLQPPPHQ SIIIERMHSG ARRFVTLDFG RPILLTDVLI PTCGDLASLS IDIWTLGEEV DGRRLVVATD IS THSLILH DLIPPPVCRF MKITVIGRYG STNARAKIPL GFYYGHTYIL PWESELKLMH DPLKGEGESA NQPEIDQHLA MMV ALQEDI QCRYNLACHR LETLLQSIDL PPLNSANNAQ YFLRKPDKAV EEDSRVFSAY QDCIQLQLQL NLAHNAVQRL KVAL GASRK MLSETSNPED LIQTSSTEQL RTIIRYLLDT LLSLLHASNG HSVPAVLQST FHAQACEELF KHLCISGTPK IRLHT GLLL VQLCGGERWW GQFLSNVLQE LYNSEQLLIF PQDRVFMLLS CIGQRSLSNS GVLESLLNLL DNLLSPLQPQ LPMHRR TEG VLDIPMISWV VMLVSRLLDY VATVEDEAAA AKKPLNGNQW SFINNNLHTQ SLNRSSKGSS SLDRLYSRKI RKQLVHH KQ QLNLLKAKQK ALVEQMEKEK IQSNKGSSYK LLVEQAKLKQ ATSKHFKDLI RLRRTAEWSR SNLDTEVTTA KESPEIEP L PFTLAHERCI SVVQKLVLFL LSMDFTCHAD LLLFVCKVLA RIANATRPTI HLCEIVNEPQ LERLLLLLVG TDFNRGDIS WGGAWAQYSL TCMLQDILAG ELLAPVAAEA MEEGTVGDDV GATAGDSDDS LQQSSVQLLE TIDEPLTHDI TGAPPLSSLE KDKEIDLEL LQDLMEVDID PLDIDLEKDP LAAKVFKPIS STWYDYWGAD YGTYNYNPYI GGLGIPVAKP PANTEKNGSQ T VSVSVSQA LDARLEVGLE QQAELMLKMM STLEADSILQ ALTNTSPTLS QSPTGTDDSL LGGLQAANQT SQLIIQLSSV PM LNVCFNK LFSMLQVHHV QLESLLQLWL TLSLNSSSTG NKENGADIFL YNANRIPVIS LNQASITSFL TVLAWYPNTL LRT WCLVLH SLTLMTNMQL NSGSSSAIGT QESTAHLLVS DPNLIHVLVK FLSGTSPHGT NQHSPQVGPT ATQAMQEFLT RLQV HLSST CPQIFSEFLL KLIHILSTER GAFQTGQGPL DAQVKLLEFT LEQNFEVVSV STISAVIESV TFLVHHYITC SDKVM SRSG SDSSVGARAC FGGLFANLIR PGDAKAVCGE MTRDQLMFDL LKLVNILVQL PLSGNREYSA RVSVTTNTTD SVSDEE KVS GGKDGNGSST SVQGSPAYVA DLVLANQQIM SQILSALGLC NSSAMAMIIG ASGLHLTKHE NFHGGLDAIS VGDGLFT IL TTLSKKASTV HMMLQPILTY MACGYMGRQG SLATCQLSEP LLWFILRVLD TSDALKAFHD MGGVQLICNN MVTSTRAI V NTARSMVSTI MKFLDSGPNK AVDSTLKTRI LASEPDNAEG IHNFAPLGTI TSSSPTAQPA EVLLQATPPH RRARSAAWS YIFLPEEAWC DLTIHLPAAV LLKEIHIQPH LASLATCPSS VSVEVSADGV NMLPLSTPVV TSGLTYIKIQ LVKAEVASAV CLRLHRPRD ASTLGLSQIK LLGLTAFGTT SSATVNNPFL PSEDQVSKTS IGWLRLLHHC LTHISDLEGM MASAAAPTAN L LQTCAALL MSPYCGMHSP NIEVVLVKIG LQSTRIGLKL IDILLRNCAA SGSDPTDLNS PLLFGRLNGL SSDSTIDILY QL GTTQDPG TKDRIQALLK WVSDSARVAA MKRSGRMNYM CPNSSTVEYG LLMPSPSHLH CVAAILWHSY ELLVEYDLPA LLD QELFEL LFNWSMSLPC NMVLKKAVDS LLCSMCHVHP NYFSLLMGWM GITPPPVQCH HRLSMTDDSK KQDLSSSLTD DSKN AQAPL ALTESHLATL ASSSQSPEAI KQLLDSGLPS LLVRSLASFC FSHISSSESI AQSIDISQDK LRRHHVPQQC NKMPI TADL VAPILRFLTE VGNSHIMKDW LGGSEVNPLW TALLFLLCHS GSTSGSHNLG AQQTSARSAS LSSAATTGLT TQQRTA IEN ATVAFFLQCI SCHPNNQKLM AQVLCELFQT SPQRGNLPTS GNISGFIRRL FLQLMLEDEK VTMFLQSPCP LYKGRIN AT SHVIQHPMYG AGHKFRTLHL PVSTTLSDVL DRVSDTPSIT AKLISEQKDD KEKKNHEEKE KVKAENGFQD NYSVVVAS G LKSQSKRAVS ATPPRPPSRR GRTIPDKIGS TSGAEAANKI ITVPVFHLFH KLLAGQPLPA EMTLAQLLTL LYDRKLPQG YRSIDLTVKL GSRVITDPSL SKTDSYKRLH PEKDHGDLLA SCPEDEALTP GDECMDGILD ESLLETCPIQ SPLQVFAGMG GLALIAERL PMLYPEVIQQ VSAPVVTSTT QEKPKDSDQF EWVTIEQSGE LVYEAPETVA AEPPPIKSAV QTMSPIPAHS L AAFGLFLR LPGYAEVLLK ERKHAQCLLR LVLGVTDDGE GSHILQSPSA NVLPTLPFHV LRSLFSTTPL TTDDGVLLRR MA LEIGALH LILVCLSALS HHSPRVPNSS VNQTEPQVSS SHNPTSTEEQ QLYWAKGTGF GTGSTASGWD VEQALTKQRL EEE HVTCLL QVLASYINPV SSAVNGEAQS SHETRGQNSN ALPSVLLELL SQSCLIPAMS SYLRNDSVLD MARHVPLYRA LLEL LRAIA SCAAMVPLLL PLSTENGEEE EEQSECQTSV GTLLAKMKTC VDTYTNRLRS KRENVKTGVK PDASDQEPEG LTLLV PDIQ KTAEIVYAAT TSLRQANQEK KLGEYSKKAA MKPKPLSVLK SLEEKYVAVM KKLQFDTFEM VSEDEDGKLG FKVNYH YMS QVKNANDANS AARARRLAQE AVTLSTSLPL SSSSSVFVRC DEERLDIMKV LITGPADTPY ANGCFEFDVY FPQDYPS SP PLVNLETTGG HSVRFNPNLY NDGKVCLSIL NTWHGRPEEK WNPQTSSFLQ VLVSVQSLIL VAEPYFNEPG YERSRGTP S GTQSSREYDG NIRQATVKWA MLEQIRNPSP CFKEVIHKHF YLKRVEIMAQ CEEWIADIQQ YSSDKRVGRT MSHHAAALK RHTAQLREEL LKLPCPEGLD PDTDDAPEVC RATTGAEETL MHDQVKPSSS KELPSDFQL UniProtKB: Baculoviral IAP repeat-containing protein 6 |
-Macromolecule #2: Diablo IAP-binding mitochondrial protein
Macromolecule | Name: Diablo IAP-binding mitochondrial protein / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 20.787098 KDa |
Recombinant expression | Organism: Escherichia coli BL21(DE3) (bacteria) |
Sequence | String: AVPIAQKSEP HSLSSEALMR RAVSLVTDST STFLSQTTYA LIEAITEYTK AVYTLTSLYR QYTSLLGKMN SEEEDEVWQV IIGARAEMT SKHQEYLKLE TTWMTAVGLS EMAAEAAYQT GADQASITAR NHIQLVKLQV EEVHQLSRKA ETKLAEAQIE E LRQKTQEE GEERAESEQE AYLRED UniProtKB: Diablo IAP-binding mitochondrial protein |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 4 mg/mL |
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Buffer | pH: 7.5 |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK III |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average exposure time: 2.3 sec. / Average electron dose: 47.27 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 70.0 µm / Calibrated defocus max: 2.5 µm / Calibrated defocus min: 0.75 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.75 µm / Nominal magnification: 105000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
+Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: OTHER / Overall B value: 191.06 |
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Output model | PDB-8ato: |