2025-04-09 REL RCSB INITIAL_RELEASE REPOSITORY DATABASE_REFERENCES citation citation_author em_admin _em_admin.last_update RCSB RCSB 2024-08-30 2025-02-12 2025-02-12 2025-04-09 National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK) DK066485 United States National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) GM129547 United States Cryo-EM structure of a SUR1/Kir6.2 ATP-sensitive potassium channel in the presence of Aekatperone in the closed conformation Driggers CM ElSheikh A Shyng S-L ATP-sensitive potassium channel, KATP channel, SUR1, Kir6.2, potassium transport, metabolic sensor, congenital hyperinsulinism, trafficking, pharmacochaperone, TRANSPORT PROTEIN Elsheikh A Driggers CM Truong HH Yang Z Allen J Henriksen NM Walczewska-Szewc K Shyng SL AI-based discovery and cryoEM structural elucidation of a K ATP channel pharmacochaperone. Elife US 13 2025 40135739 doi:10.7554/eLife.103159 2050-084X ElSheikh A Driggers CM Truong HH Yang Z Allen J Henriksen N Walczewska-Szewc K Shyng SL AI-Based Discovery and CryoEM Structural Elucidation of a KATP Channel Pharmacochaperone Elife US 2024 doi:10.7554/elife.103159.1 2050-084X 9dfx FULLOVERLAP Kir6.2/SUR1 closed channel in complex with Aekatperone Kir6.2/SUR1 closed channel in complex with Aekatperone 0 1 2
Kir6.2/SUR1 KATP channel in the closed conformation in complex with ATP and Aekatperone
Rattus norvegicus 0.880 ATP-sensitive inward rectifier potassium channel 11 Rattus norvegicus 0.043661762 4 Rattus norvegicus LEVO MLSRKGIIPEEYVLTRLAEDPTEPRYRTRERRARFVSKKGNCNVAHKNIREQGRFLQDVFTTLVDLKWPHTLLIFTMSFL CSWLLFAMVWWLIAFAHGDLAPGEGTNVPCVTSIHSFSSAFLFSIEVQVTIGFGGRMVTEECPLAILILIVQNIVGLMIN AIMLGCIFMKTAQAHRRAETLIFSKHAVITLRHGRLCFMLRVGDLRKSMIISATIHMQVVRKTTSPEGEVVPLHQVDIPM ENGVGGNSIFLVAPLIIYHVIDSNSPLYDLAPSDLHHHQDLEIIVILEGVVETTGITTQARTSYLADEILWGQRFVPIVA EEDGRYSVDYSKFGNTVKVPTPLCTARQLDEDRSLLDALTLASSRGPLRKRSVAVAKAKPKFSISPDSLS P70673 SUR1 Mesocricetus auratus pancreas Beta Cell 0.177296578 1 Rattus norvegicus LEVO MPLAFCGTENHSAAYRVDQGVLNNGCFVDALNVVPHVFLLFITFPILFIGWGSQSSKVHIHHSTWLHFPGHNLRWILTFI LLFVLVCEIAEGILSDGVTESRHLHLYMPAGMAFMAAITSVVYYHNIETSNFPKLLIALLIYWTLAFITKTIKFVKFYDH AIGFSQLRFCLTGLLVILYGMLLLVEVNVIRVRRYIFFKTPREVKPPEDLQDLGVRFLQPFVNLLSKGTYWWMNAFIKTA HKKPIDLRAIGKLPIAMRALTNYQRLCVAFDAQARKDTQSPQGARAIWRALCHAFGRRLILSSTFRILADLLGFAGPLCI FGIVDHLGKENHVFQPKTQFLGVYFVSSQEFLGNAYVLAVLLFLALLLQRTFLQASYYVAIETGINLRGAIQTKIYNKIM HLSTSNLSMGEMTAGQICNLVAIDTNQLMWFFFLCPNLWAMPVQIIVGVILLYYILGVSALIGAAVIILLAPVQYFVATK LSQAQRSTLEHSNERLKQTNEMLRGMKLLKLYAWESIFCSRVEVTRRKEMTSLRAFAVYTSISIFMNTAIPIAAVLITFV GHVSFFKESDLSPSVAFASLSLFHILVTPLFLLSSVVRSTVKALVSVKKLSEFLSSAEIREEQCAPREPAPQGQAGKYQA VPLKVVNRKRPAREEVRDLLGPLQRLAPSMDGDADNFCVQIIGGFFTWTPDGIPTLSNITIRIPRGQLTMIVGQVGCGKS SLLLATLGEMQKVSGAVFWNSNLPDSEGEDPSSPERETAAGSDIRSRGPVAYASQKPWLLNATVEENITFESPFNKQRYK MVIEACSLQPDIDILPHGDQTQIGERGINLSGGQRQRISVARALYQQTNVVFLDDPFSALDVHLSDHLMQAGILELLRDD KRTVVLVTHKLQYLPHADWIIAMKDGTIQREGTLKDFQRSECQLFEHWKTLMNRQDQELEKETVMERKASEPSQGLPRAM SSRDGLLLDEEEEEEEAAESEEDDNLSSVLHQRAKIPWRACTKYLSSAGILLLSLLVFSQLLKHMVLVAIDYWLAKWTDS ALVLSPAARNCSLSQECDLDQSVYAMVFTLLCSLGIVLCLVTSVTVEWTGLKVAKRLHRSLLNRIILAPMRFFETTPLGS ILNRFSSDCNTIDQHIPSTLECLSRSTLLCVSALTVISYVTPVFLVALLPLAVVCYFIQKYFRVASRDLQQLDDTTQLPL LSHFAETVEGLTTIRAFRYEARFQQKLLEYTDSNNIASLFLTAANRWLEVRMEYIGACVVLIAAATSISNSLHRELSAGL VGLGLTYALMVSNYLNWMVRNLADMEIQLGAVKRIHALLKTEAESYEGLLAPSLIPKNWPDQGKIQIQNLSVRYDSSLKP VLKHVNALISPGQKIGICGRTGSGKSSFSLAFFRMVDMFEGRIIIDGIDIAKLPLHTLRSRLSIILQDPVLFSGTIRFNL DPEKKCSDSTLWEALEIAQLKLVVKALPGGLDAIITEGGENFSQGQRQLFCLARAFVRKTSIFIMDEATASIDMATENIL QKVVMTAFADRTVVTIAHRVHTILSADLVMVLKRGAILEFDKPETLLSQKDSVFASFVRADK A0A1S4NYG1 ADENOSINE-5'-TRIPHOSPHATE 0.000507181 5 ATP POTASSIUM ION 3.9098e-05 6 K N-[3-(cyclohexylmethyl)-1H-pyrazol-5-yl]-2-[(1H-imidazol-1-yl)methyl]benzene-1-sulfonamide 0.00039950999999999995 1 A1A4F 2-acetamido-2-deoxy-beta-D-glucopyranose 0.000221208 1 NAG singleParticle particle 0.15 7.4 200.0 NaCl sodium chloride 100.0 KCl potassium chloride 50.0 HEPES pH 7.5 1.0 ATP 0.05 GDN 0.05 Aekatperone
MSB with GDN, ATP and AKP
 EMS Lacey Carbon CARBON LACEY GLOW DISCHARGE ETHANE 100 279 FEI VITROBOT MARK III
Three microliters of purified Kir6.2-Q52R/FLAG-SUR1 were loaded onto Quantifoil R 1.2/1.3 Au 300 grids prepared with a fresh graphene oxide surface.
 TFS KRIOS SPOT SCAN BRIGHT FIELD FIELD EMISSION GUN 300 70.0 2.7 1.0 2.5 81000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN
Titan Krios with Falcon K3 at the Pacific Northwest National Lab
GATAN K3 (6k x 4k) 2 21012 3.2 55.0 1 78490 7TYS 4.1 FSC 0.143 CUT-OFF cryoSPARC 4.2.1 78490 MAXIMUM LIKELIHOOD cryoSPARC 4.2.1 MAXIMUM LIKELIHOOD cryoSPARC 4.2.1 1 cryoSPARC 4.2.1 emd_46820.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 538.368 538.368 538.368 90.0 90.0 90.0 X Y Z -0.1778364 0.41166604 0.00029232126 0.012466612 1.0515 1.0515 1.0515 0.08 AUTHOR 7TYS PDB experimental model FLEXIBLE FIT emd_46820_msk_1.map emd_46820_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 538.368 538.368 538.368 90.0 90.0 90.0 X Y Z -1.0475898 1.1523939 0.0005226853 0.12086768 1.0515 1.0515 1.0515 AUTHOR emd_46820_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 512 512 512 0 0 0 512 512 512 538.368 538.368 538.368 90.0 90.0 90.0 X Y Z -1.0176898 0.9489815 0.0004989194 0.11884229 1.0515 1.0515 1.0515 AUTHOR