2024-10-23 REL RCSB RCSB RCSB 2016-06-16 2016-08-17 2016-08-17 2024-10-23 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) GM43949 United States Howard Hughes Medical Institute (HHMI) United States Damon Runyon Cancer Research Foundation DRG-2212-15 United States Single particle cryo-EM structure of the voltage-gated K+ channel Eag1 bound to the channel inhibitor calmodulin Whicher JR MacKinnon R Voltage-gated potassium channel, calmodulin, Cryoelectron microscopy, Eag1, METAL TRANSPORT-CALCIUM BINDING PROTEIN complex Whicher JR MacKinnon R Structure of the voltage-gated K+ channel Eag1 reveals an alternative voltage sensing mechanism. Science US 353 664 669 2016 27516594 doi:10.1126/science.aaf8070 1095-9203 0038 SCIEAS 5k7l FULLOVERLAP Voltage-gated K+ channel Eag1 bound to the channel inhibitor calmodulin Voltage-gated K+ channel Eag1 bound to the channel inhibitor calmodulin 0 1 2 0.45 Voltage-gated potassium channel Eag1 1 1 Rattus norvegicus Cell membrane 0.38 Calmodulin 1 2 Homo sapiens 0.017 Potassium voltage-gated channel subfamily H member 1 Rattus norvegicus 0.097359766 1 Homo sapiens LEVO MTMAGGRRGLVAPQNTFLENIVRRSNDTNFVLGNAQIVDWPIVYSNDGFCKLSGYHRAEVMQKSSACSFMYGELTDKDTV EKVRQTFENYEMNSFEILMYKKNRTPVWFFVKIAPIRNEQDKVVLFLCTFSDITAFKQPIEDDSCKGWGKFARLTRALTS SRGVLQQLAPSVQKGENVHKHSRLAEVLQLGSDILPQYKQEAPKTPPHIILHYCVFKTTWDWIILILTFYTAILVPYNVS FKTRQNNVAWLVVDSIVDVIFLVDIVLNFHTTFVGPAGEVISDPKLIRMNYLKTWFVIDLLSCLPYDVINAFENVDEGIS SLFSSLKVVRLLRLGRVARKLDHYIEYGAAVLVLLVCVFGLAAHWMACIWYSIGDYEIFDEDTKTIRNNSWLYQLALDIG TPYQFNGSGSGKWEGGPSKNSVYISSLYFTMTSLTSVGFGNIAPSTDIEKIFAVAIMMIGSLLYATIFGNVTTIFQQMYA NTNRYHEMLNSVRDFLKLYQVPKGLSERVMDYIVSTWSMSRGIDTEKVLQICPKDMRADICVHLNRKVFKEHPAFRLASD GCLRALAMEFQTVHCAPGDLIYHAGESVDSLCFVVSGSLEVIQDDEVVAILGKGDVFGDVFWKEATLAQSCANVRALTYC DLHVIKRDALQKVLEFYTAFSHSFSRNLILTYNLRKRIVFRKISDVKREEEERMKRKNEAPLILPPDHPVRRLFQRFRQQ KEARLAAERGGRDLDDLDVEKGNALTDHTSANHSLVKASVVTVRESPATPVSFYPIPEQTLQATVLEVKHELKEDIKALN AKMTSIEKQLSEILRILMSRGSSQSPQDTCEVSRPQSPESDRDIFGASSNSLEVLFQ Q63472 Q63472 Calmodulin Homo sapiens 0.016852544999999997 1 Homo sapiens LEVO MADQLTEEQIAEFKEAFSLFDKDGDGTITTKELGTVMRSLGQNPTEAELQDMINEVDADGNGTIDFPEFLTMMARKMKDT DSEEEIREAFRVFDKDGNGYISAAELRHVMTNLGEKLTDEEVDEMIREADIDGDGQVNYEEFVQMMTAK P62158 2-acetamido-2-deoxy-beta-D-glucopyranose 0.000221208 1 NAG CHOLESTEROL HEMISUCCINATE 0.000486726 1 Y01 singleParticle particle 4 8.0 20.0 C4H11NO3 Tris 300.0 KCl potassium chloride 5.0 CaCl2 calcium chloride 5.0 DTT 1.0 Dodecyl Maltopyranoside 0.2 Cholesteryl hemisuccinate 0.05 PC:PE:PS (3:1:1) Quantifoil R1.2/1.3 COPPER 400 GLOW DISCHARGE ETHANE 86 FEI VITROBOT MARK IV
Plunged into liquid ethane (FEI VITROBOT MARK IV).
FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 1.5 3.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN GATAN K2 SUMMIT (4k x 4k) SUPER-RESOLUTION 1657 1.8 1 240000
Particles were auto-picked and manually inspected in RELION.
 Initial model was generated in EMAN. C4 3.78 FSC 0.143 CUT-OFF FREALIGN
2D classification, 3D classification, and refinement were performed in RELION. Final map generation was performed in FREALIGN.
145000 PROJECTION MATCHING RELION 1.4 PROJECTION MATCHING RELION 1.4 FREALIGN emd_8215.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 256 256 256 0 0 0 256 256 256 332.8 332.8 332.8 90.0 90.0 90.0 X Y Z -0.018570647 0.08381803 -0.0015307135 0.005304274 1.3 1.3 1.3 0.032 AUTHOR Voltage-gated K+ channel Eag1 bound to the channel inhibitor calmodulin AB INITIO MODEL RECIPROCAL emd_8215_additional_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 256 256 256 0 0 0 256 256 256 332.8 332.8 332.8 90.0 90.0 90.0 X Y Z -0.50221586 0.8561735 0.0017150021 0.0247738 1.3 1.3 1.3 AUTHOR Voltage-gated K+ channel Eag1 bound to the channel inhibitor calmodulin emd_8215_additional_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 256 256 256 0 0 0 256 256 256 332.8 332.8 332.8 90.0 90.0 90.0 X Y Z -0.02429538 0.08330729 -0.0015221207 0.0052701808 1.3 1.3 1.3 AUTHOR Voltage-gated K+ channel Eag1 bound to the channel inhibitor calmodulin emd_8215_additional_3.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 256 256 256 0 0 0 256 256 256 332.8 332.8 332.8 90.0 90.0 90.0 X Y Z -0.4484839 0.7267326 0.001715002 0.024196034 1.3 1.3 1.3 AUTHOR Voltage-gated K+ channel Eag1 bound to the channel inhibitor calmodulin