2026-08-12 REL RCSB INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY RCSB RCSB 2026-01-14 2026-08-12 2026-08-12 2026-08-12 National Institutes of Health/National Center for Complementary and Integrative Health (NIH/NCCIH) P01CA066996 United States National Institutes of Health/National Center for Complementary and Integrative Health (NIH/NCCIH) R01CA262188 United States National Institutes of Health/National Center for Complementary and Integrative Health (NIH/NCCIH) R01CA214608 United States National Institutes of Health/National Center for Complementary and Integrative Health (NIH/NCCIH) R01CA218278 United States Structure of CRBN/DDB1dB-KAT2A-Compound4 ternary complex Ojeda S Fischer ES CRBN, molecular glue, CRBN-MG, KAT2A, TRANSFERASE Ojeda S Wang M Baek K Bourgeois W Sommerschield A Yue H Metivier RJ Karagiannis P Levitz TS Xiong Y Donovan KA Armstrong SA Fischer ES Degron-independent recruitment of KAT2A expands the target space of CRBN molecular glues. Science US 393 188 194 2026 42424456 doi:10.1126/science.aef5391 1095-9203 0038 SCIEAS 10dw FULLOVERLAP EMDB EMD-75101 associated EM volume
Structure of CRBN/DDB1dB-KAT2A-Compound4 ternary complex
 Compound 4 induced DDB1dB/CRBN, KAT2A-NTD ternary complex Compound 4 induced DDB1dB/CRBN, KAT2A-NTD ternary complex 0 1 3 2 Homo sapiens DDB1dB/CRBN 1 3 2 Homo sapiens KAT2A N-terminal domain 1 1 Homo sapiens Histone acetyltransferase KAT2A Homo sapiens 0.038581309
N-terminal Strep-TEV tagged KAT2A-NTD
1 Escherichia coli LEVO MDWSHPQFEKDLGTENLYFQSPARPGLSQQQRASQRKAQVRGLPRAKKLEKLGVFSACKANETCKCNGWKNPKPPTAPRM DLQQPAANLSELCRSCEHPLADHVSHLENVSEDEINRLLGMVVDVENLFMSVHKEEDTDTKQVYFYLFKLLRKCILQMTR PVVEGSLGSPPFEKPNIEQGVLNFVQYKFSHLAPRERQTMFELSKMFLLCLNYWKLETPAQFRQRSQAEDVATYKVNYTR WLCYCHVPQSCDSLPRYETTHVFGRSLLRSIFTVTRRQLLEKFRVEKDKLVPEKRTLILTHFPKFLSMLEEEIYGANSPI WESGFTMPPSE Q92830 2.3.1.48 Protein cereblon Homo sapiens 0.055144594
N terminal Flag-Spy tagged CRBN
1 Trichoplusia ni LEVO MDYKDDDDKSAVDENLYFQGGGRGGSAHIVMVDAYKPTKGGSGMAGEGDQQDAAHNMGNHLPLLPAESEEEDEMEVEDQD SKEAKKPNIINFDTSLPTSHTYLGADMEEFHGRTLHDDDSCQVIPVLPQVMMILIPGQTLPLQLFHPQEVSMVRNLIQKD RTFAVLAYSNVQEREAQFGTTAEIYAYREEQDFGIEIVKVKAIGRQRFKVLELRTQSDGIQQAKVQILPECVLPSTMSAV QLESLNKCQIFPSKPVSREDQCSYKWWQKYQKRKFHCANLTSWPRWLYSLYDAETLMDRIKKQLREWDENLKDDSLPSNP IDFSYRVAACLPIDDVLRIQLLKIGSAIQRLRCELDIMNKCTSLCCKQCQETEITTKNEIFSLSLCGPMAAYVNPHGYVH ETLTVYKACNLNLIGRPSTEHSWFPGYAWTVAQCKICASHIGWKFTATKKDMSPQKFWGLTRSALLPTIPDTEDEISPDK VILCL Q96SW2 DNA damage-binding protein 1 Homo sapiens 0.096193414
N terminal His tagged DDB1dB,N terminal His tagged DDB1dB
1 Trichoplusia ni LEVO MGSSHHHHHHSAVDENLYFQGGGRMSYNYVVTAQKPTAVNGCVTGHFTSAEDLNLLIAKNTRLEIYVVTAEGLRPVKEVG MYGKIAVMELFRPKGESKDLLFILTAKYNACILEYKQSGESIDIITRAHGNVQDRIGRPSETGIIGIIDPECRMIGLRLY DGLFKVIPLDRDNKELKAFNIRLEELHVIDVKFLYGCQAPTICFVYQDPQGRHVKTYEVSLREKEFNKGPWKQENVEAEA SMVIAVPEPFGGAIIIGQESITYHNGDKYLAIAPPIIKQSTIVCHNRVDPNGSRYLLGDMEGRLFMLLLEKEEQMDGTVT LKDLRVELLGETSIAECLTYLDNGVVFVGSRLGDSQLVKLNVDSNEQGSYVVAMETFTNLGPIVDMCVVDLERQGQGQLV TCSGAFKEGSLRIIRNGIGKKKKKEIQKLHIRTVPLYESPRKICYQEVSQCFGVLSSRIEVQDTSGGTTALRPSASTQAL SSSVSSSKLFSSSTAPHETSFGEEVEVHNLLIIDQHTFEVLHAHQFLQNEYALSLVSCKLGKDPNTYFIVGTAMVYPEEA EPKQGRIVVFQYSDGKLQTVAEKEVKGAVYSMVEFNGKLLASINSTVRLYEWTTEKELRTECNHYNNIMALYLKTKGDFI LVGDLMRSVLLLAYKPMEGNFEEIARDFNPNWMSAVEILDDDNFLGAENAFNLFVCQKDSAATTDEERQHLQEVGLFHLG EFVNVFCHGSLVMQNLGETSTPTQGSVLFGTVNGMIGLVTSLSESWYNLLLDMQNRLNKVIKSVGKIEHSFWRSFHTERK TEPATGFIDGDLIESFLDISRPKMQEVVANLQYDDGSGMKREATADDLIKVVEELTRIH Q16531 Q16531 ZINC ION 6.5409e-05 3 ZN (3S)-3-[4-({6-(3-tert-butyl-2-oxoimidazolidin-1-yl)-1-[(2S)-oxan-2-yl]-1H-imidazo[4,5-c]pyridin-4-yl}amino)-1-oxo-1,3-dihydro-2H-isoindol-2-yl]piperidine-2,6-dione 0.000600668 1 A1C5C singleParticle particle 7.4 30.0 C8H18N2O4S HEPES 150.0 NaCl Sodium chloride
30 mM HEPES/NaOH pH7.4, 150 mM NaCl.
 Quantifoil R0.6/1 GOLD GOLD HOLEY ETHANE 90 283 LEICA EM GP
Grids were vitrified using a Leica EM GP plunge freezer operated at 90% humidity and 10C. Grids were first pre-incubated with 4uL of 10uM CRBN-agnostic IKZF1_140-196_Q146A,G151N for 1 minute and then back-blotted for 4s. Afterwards, 4uL of mixture was applied to the grids, followed by blotting for 4s and plunging into liquid ethane at -181 C..
TFS KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 50.0 2.7 0.8 2.0 165000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN
The grid was imaged at a 30-degree tilt
TFS FALCON 4i (4k x 4k) 1 9381 55.8
The grid was imaged at a 30-degree tilt
 1 cryoSPARC PHASE FLIPPING AND AMPLITUDE CORRECTION 2.9 FSC 0.143 CUT-OFF cryoSPARC 613163 MAXIMUM LIKELIHOOD cryoSPARC MAXIMUM LIKELIHOOD cryoSPARC emd_75101.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 384 384 384 0 0 0 384 384 384 283.008 283.008 283.008 90.0 90.0 90.0 X Y Z -0.0018235896 2.2125437 0.0010611345 0.02357482 0.737 0.737 0.737 0.05 AUTHOR Structure of CRBN/DDB1dB-KAT2A-Compound4 ternary complex emd_75101_msk_2.map emd_75101_msk_1.map emd_75101_additional_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 384 384 384 0 0 0 384 384 384 283.008 283.008 283.008 90.0 90.0 90.0 X Y Z -0.50894094 0.5551549 0.0002636711 0.008245535 0.737 0.737 0.737 AUTHOR Additional Map A emd_75101_additional_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 384 384 384 0 0 0 384 384 384 283.008 283.008 283.008 90.0 90.0 90.0 X Y Z -0.04828249 0.09956845 0.00026367107 0.0023022182 0.737 0.737 0.737 AUTHOR Additional Map B emd_75101_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 384 384 384 0 0 0 384 384 384 283.008 283.008 283.008 90.0 90.0 90.0 X Y Z -0.061928652 0.11999763 0.00017597925 0.0059158523 0.737 0.737 0.737 AUTHOR Half Map A emd_75101_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 384 384 384 0 0 0 384 384 384 283.008 283.008 283.008 90.0 90.0 90.0 X Y Z -0.06719541 0.1250087 0.00017800088 0.0059327083 0.737 0.737 0.737 AUTHOR Half Map B