2025-07-02 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY DATABASE_REFERENCES citation citation_author em_admin _em_admin.last_update PDBe PDBe 2024-12-09 2025-03-05 2025-03-05 2025-07-02 Not funded CryoEM structure of human 20S proteasome in complex with proteasome inhibitor Salinosporamid A Suelzen H Boura E Silhan J Inhibitor, 20S proteasome, Salinosporamid A, HYDROLASE Sulzen H Fajtova P O'Donoghue AJ Silhan J Boura E Structural Insights into Salinosporamide a Mediated Inhibition of the Human 20S Proteasome. Molecules CH 30 2025 40142161 doi:10.3390/molecules30061386 1420-3049 Sulzen H Fajtova P O'Donoghue AJ Boura E Silhan J Structural insights into Salinosporamide A mediated inhibition of the human 20S proteasome. Biorxiv US 2025 39974992 doi:10.1101/2025.01.28.635221 2692-8205 9hmn FULLOVERLAP Human 20S proteasome in complex with proteasome inhibitor Salinosporamid A Human 20S proteasome in complex with proteasome inhibitor Salinosporamid A 0 1 2 3 4 5 6 7 8 9 10 11 Homo sapiens Proteasome subunit alpha type-6 Homo sapiens 0.027432459 2 LEVO MSRGSSAGFDRHITIFSPEGRLYQVEYAFKAINQGGLTSVAVRGKDCAVIVTQKKVPDKLLDSSTVTHLFKITENIGCVM TGMTADSRSQVQRARYEAANWKYKYGYEIPVDMLCKRIADISQVYTQNAEMRPLGCCMILIGIDEEQGPQVYKCDPAGYY CGFKATAAGVKQTESTSFLEKKVKKKFDWTFEQTVETAITCLSTVLSIDFKPSEIEVGVVTVENPKFRILTEAEIDAHLV ALAERD P60900 Proteasome subunit alpha type-2 Homo sapiens 0.025796338 2 LEVO AERGYSFSLTTFSPSGKLVQIEYALAAVAGGAPSVGIKAANGVVLATEKKQKSILYDERSVHKVEPITKHIGLVYSGMGP DYRVLVHRARKLAQQYYLVYQEPIPTAQLVQRVASVMQEYTQSGGVRPFGVSLLICGWNEGRPYLFQSDPSGAYFAWKAT AMGKNYVNGKTFLEKRYNEDLELEDAIHTAILTLKESFEGQMTEDNIEVGICNEAGFRRLTPTEVKDYLAAIA P25787 Proteasome subunit alpha type-4 Homo sapiens 0.029525842 2 LEVO MSRRYDSRTTIFSPEGRLYQVEYAMEAIGHAGTCLGILANDGVLLAAERRNIHKLLDEVFFSEKIYKLNEDMACSVAGIT SDANVLTNELRLIAQRYLLQYQEPIPCEQLVTALCDIKQAYTQFGGKRPFGVSLLYIGWDKHYGFQLYQSDPSGNYGGWK ATCIGNNSAAAVSMLKQDYKEGEMTLKSALALAIKVLNKTMDVSKLSAEKVEIATLTRENGKTVIRVLKQKEVEQLIKKH EEEEAKAEREKKEKEQKEKDK P25789 3.4.25.1 Proteasome subunit alpha type-5 Homo sapiens 0.026435977 2 LEVO MFLTRSEYDRGVNTFSPEGRLFQVEYAIEAIKLGSTAIGIQTSEGVCLAVEKRITSPLMEPSSIEKIVEIDAHIGCAMSG LIADAKTLIDKARVETQNHWFTYNETMTVESVTQAVSNLALQFGEEDADPGAMSRPFGVALLFGGVDEKGPQLFHMDPSG TFVQCDARAIGSASEGAQSSLQEVYHKSMTLKEAIKSSLIILKQVMEEKLNATNIELATVQPGQNFHMFTKEELEEVIKD I P28066 3.4.25.1 Proteasome subunit alpha type-1 Homo sapiens 0.029595627 2 LEVO MFRNQYDNDVTVWSPQGRIHQIEYAMEAVKQGSATVGLKSKTHAVLVALKRAQSELAAHQKKILHVDNHIGISIAGLTAD ARLLCNFMRQECLDSRFVFDRPLPVSRLVSLIGSKTQIPTQRYGRRPYGVGLLIAGYDDMGPHIFQTCPSANYFDCRAMS IGARSQSARTYLERHMSEFMECNLNELVKHGLRALRETLPAEQDLTTKNVSIGIVGKDLEFTIYDDDDVSPFLEGLEERP QRKAQPAQPADEPAEKADEPMEH P25786 Proteasome subunit alpha type-3 Homo sapiens 0.028338057 2 LEVO SSIGTGYDLSASTFSPDGRVFQVEYAMKAVENSSTAIGIRCKDGVVFGVEKLVLSKLYEEGSNKRLFNVDRHVGMAVAGL LADARSLADIAREEASNFRSNFGYNIPLKHLADRVAMYVHAYTLYSAVRPFGCSFMLGSYSVNDGAQLYMIDPSGVSYGY WGCAIGKARQAAKTEIEKLQMKEMTCRDIVKEVAKIIYIVHDEVKDKAFELELSWVGELTNGRHEIVPKDIREEAEKYAK ESLKEEDESDDDNM P25788 Proteasome subunit beta type-3 Homo sapiens 0.022841701 2 LEVO SIMSYNGGAVMAMKGKNCVAIAADRRFGIQAQMVTTDFQKIFPMGDRLYIGLAGLATDVQTVAQRLKFRLNLYELKEGRQ IKPYTLMSMVANLLYEKRFGPYYTEPVIAGLDPKTFKPFICSLDLIGCPMVTDDFVVSGTCAEQMYGMCESLWEPNMDPD HLFETISQAMLNAVDRDAVSGMGVIVHIIEKDKITTRTLKARMD P49720 3.4.25.1 Proteasome subunit beta type-2 Homo sapiens 0.022864277 2 LEVO MEYLIGIQGPDYVLVASDRVAASNIVQMKDDHDKMFKMSEKILLLCVGEAGDTVQFAEYIQKNVQLYKMRNGYELSPTAA ANFTRRNLADCLRSRTPYHVNLLLAGYDEHEGPALYYMDYLAALAKAPFAAHGYGAFLTLSILDRYYTPTISRERAVELL RKCLEELQKRFILNLPTFSVRIIDKNGIHDLDNISFPKQGS P49721 3.4.25.1 Proteasome subunit beta type-1 Homo sapiens 0.023578986 2 LEVO RFSPYVFNGGTILAIAGEDFAIVASDTRLSEGFSIHTRDSPKCYKLTDKTVIGCSGFHGDCLTLTKIIEARLKMYKHSNN KAMTTGAIAAMLSTILYSRRFFPYYVYNIIGGLDEEGKGAVYSFDPVGSYQRDSFKAGGSASAMLQPLLDNQVGFKNMQN VEHVPLSLDRAMRLVKDVFISAAERDVYTGDALRICIVTKEGIREETVSLRKD P20618 3.4.25.1 Proteasome subunit beta type-4 Homo sapiens 0.02441474 2 LEVO TQNPMVTGTSVLGVKFEGGVVIAADMLGSYGSLARFRNISRIMRVNNSTMLGASGDYADFQYLKQVLGQMVIDEELLGDG HSYSPRAIHSWLTRAMYSRRSKMNPLWNTMVIGGYADGESFLGYVDMLGVAYEAPSLATGYGAYLAQPLLREVLEKQPVL SQTEARDLVERCMRVLYYRDARSYNRFQIATVTEKGVEIEGPLSTETNWDIAHMISGFE P28070 3.4.25.1 Proteasome subunit alpha type-7 Homo sapiens 0.027929891 2 LEVO MSYDRAITVFSPDGHLFQVEYAQEAVKKGSTAVGVRGRDIVVLGVEKKSVAKLQDERTVRKICALDDNVCMAFAGLTADA RIVINRARVECQSHRLTVEDPVTVEYITRYIASLKQRYTQSNGRRPFGISALIVGFDFDGTPRLYQTDPSGTYHAWKANA IGRGAKSVREFLEKNYTDEAIETDDLTIKLVIKALLEVVQSGGKNIELAVMRRDQSLKILNPEEIEKYVAEIEKEKEENE KKKQKKAS O14818 Proteasome subunit beta type-6 Homo sapiens 0.021921835999999997 2 LEVO TTIMAVQFDGGVVLGADSRTTTGSYIANRVTDKLTPIHDRIFCCRSGSAADTQAVADAVTYQLGFHSIELNEPPLVHTAA SLFKEMCYRYREDLMAGIIIAGWDPQEGGQVYSVPMGGMMVRQSFAIGGSGSSYIYGYVDATYREGMTKEECLQFTANAL ALAMERDGSSGGVIRLAAIAESGVERQVLLGDQIPKFAVATLPPA P28072 3.4.25.1 Proteasome subunit beta type-7 Homo sapiens 0.025321979999999997 2 LEVO TTIAGVVYKDGIVLGADTRATEGMVVADKNCSKIHFISPNIYCCGAGTAADTDMTTQLISSNLELHSLSTGRLPRVVTAN RMLKQMLFRYQGYIGAALVLGGVDVTGPHLYSIYPHGSTDKLPYVTMGSGSLAAMAVFEDKFRPDMEEEEAKNLVSEAIA AGIFNDLGSGSNIDLCVISKNKLDFLRPYTVPNKKGTRLGRYRCEKGTTAVLTEKITPLEIEVLEETVQTMDTS Q99436 3.4.25.1 Proteasome subunit beta type-5 Homo sapiens 0.022484368999999997 2 LEVO TTTLAFKFRHGVIVAADSRATAGAYIASQTVKKVIEINPYLLGTMAGGAADCSFWERLLARQCRIYELRNKERISVAAAS KLLANMVYQYKGMGLSMGTMICGWDKRGPGLYYVDSEGNRISGATFSVGSGSVYAYGVMDRGYSYDLEVEQAYDLARRAI YQATYRDAYSGGAVNLYHVREDGWIRVSSDNVADLHEKYSGSTP P28074 3.4.25.1 (3AR,6R,6AS)-6-((S)-((S)-CYCLOHEX-2-ENYL)(HYDROXY)METHYL)-6A-METHYL-4-OXO-HEXAHYDRO-2H-FURO[3,2-C]PYRROLE-6-CARBALDEHYDE 0.000279332 6 SA1 singleParticle particle 7.5 ETHANE 100 277.15 FEI VITROBOT MARK IV TFS KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.7 1.0 2.5 GATAN K3 BIOQUANTUM (6k x 4k) 60.0 1 cryoSPARC 4.3+ Patch CTF correction PHASE FLIPPING AND AMPLITUDE CORRECTION C2 2.55 FSC 0.143 CUT-OFF cryoSPARC 4.3+ 209737 MAXIMUM LIKELIHOOD cryoSPARC 4.3+ MAXIMUM LIKELIHOOD cryoSPARC 4.3+ emd_52296.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 333.44 333.44 333.44 90.0 90.0 90.0 X Y Z -0.5213783 28.965886999999999 0.04976961 0.97099334 0.8336 0.8336 0.8336 8.0 AUTHOR This map has been used for building the atomic model. it was obtained by flipping the handedness of the Volume obtained after the final refinement and subsequent sharpening via the EMReady software emd_52296_msk_1.map emd_52296_additional_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 333.44 333.44 333.44 90.0 90.0 90.0 X Y Z -0.07645232 0.19702311 0.00023895786 0.008123373 0.8336 0.8336 0.8336 AUTHOR Unsharpened density map obtained in the final refinement step. Handedness of this reconstruction was flipped using Chimera. emd_52296_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 333.44 333.44 333.44 90.0 90.0 90.0 X Y Z -0.14448439 0.23135087 0.00027200585 0.01865549 0.8336 0.8336 0.8336 AUTHOR Handedness of half maps was flipped using Chimera. emd_52296_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 400 400 400 0 0 0 400 400 400 333.44 333.44 333.44 90.0 90.0 90.0 X Y Z -0.18282339 0.22144762 0.0002780042 0.01864936 0.8336 0.8336 0.8336 AUTHOR Handedness of half maps was flipped using Chimera.