2024-01-17 REL RCSB RCSB RCSB 2021-10-16 2022-02-02 2022-02-02 2024-01-17 Howard Hughes Medical Institute (HHMI) United States 13pf E254N microtubule from recombinant human tubulin decorated with EB3 LaFrance BJ Greber BJ Zhang R McCollum C Nogales E microtubule, cell division, cytoskeleton, GTPase, STRUCTURAL PROTEIN LaFrance BJ Roostalu J Henkin G Greber BJ Zhang R Normanno D McCollum CO Surrey T Nogales E Structural transitions in the GTP cap visualized by cryo-electron microscopy of catalytically inactive microtubules. Proc.Natl.Acad.Sci.USA US 119 2022 34996871 doi:10.1073/pnas.2114994119 1091-6490 0040 PNASA6 LaFrance BJ Roostalu J Henkin G Greber BJ Zhang R Normanno D McCollum C Surrey T Nogales E Structural transitions in the GTP cap visualized by cryo-EM of catalytically inactive microtubules BioRxiv US 2021 doi:10.1101/2021.08.13.456308 2692-8205 EMD-25160 other EM volume EMD-25159 other EM volume EMD-25158 other EM volume EMD-25157 other EM volume EMD-25156 other EM volume 13pf E254N microtubule decorated with EB3 from recombinant human tubulin 13pf E254N microtubule decorated with EB3 from recombinant human tubulin 0 1 2 3 Homo sapiens 0.102 human tubulin alpha-1B chain (TUBA1B) with E254N mutation Homo sapiens Trichoplusia ni LEVO MRECISIHVGQAGVQIGNACWELYCLEHGIQPDGQMPSDKTIHHHHHHGGGDDSFNTFFSETGAGKHVPRAVFVDLEPTVIDE VRTGTYRQLFHPEQLITGKEDAANNYARGHYTIGKEIIDLVLDRIRKLADQCTGLQGFLVFHSFGGGTGSGFTSLLMERLSVD YGKKSKLEFSIYPAPQVSTAVVEPYNSILTTHTTLEHSDCAFMVDNEAIYDICRRNLDIERPTYTNLNRLISQIVSSITASLR FDGALNVDLTNFQTNLVPYPRIHFPLATYAPVISAEKAYHEQLSVAEITNACFEPANQMVKCDPRHGKYMACCLLYRGDVVPK DVNAAIATIKTKRSIQFVDWCPTGFKVGINYQPPTVVPGGDLAKVQRAVCMLSNTTAIAEAWARLDHKFDLMYAKRAFVHWYV GEGMEEGEFSEAREDMAALEKDYEEVGVDSVEGEGEEEGEEY human tubulin beta-3 chain (TUBB3) Homo sapiens Trichoplusia ni LEVO MREIVHIQAGQCGNQIGAKFWEVISDEHGIDPSGNYVGDSDLQLERISVYYNEASSHKYVPRAILVDLEPGTMDSVRSGAFGH LFRPDNFIFGQSGAGNNWAKGHYTEGAELVDSVLDVVRKECENCDCLQGFQLTHSLGGGTGSGMGTLLISKVREEYPDRIMNT FSVVPSPKVSDTVVEPYNATLSIHQLVENTDETYCIDNEALYDICFRTLKLATPTYGDLNHLVSATMSGVTTSLRFPGQLNAD LRKLAVNMVPFPRLHFFMPGFAPLTARGSQQYRALTVPELTQQMFDAKNMMAACDPRHGRYLTVATVFRGRMSMKEVDEQMLA IQSKNSSYFVEWIPNNVKVAVCDIPPRGLKMSSTFIGNSTAIQELFKRISEQFTAMFRRKAFLHWYTGEGMDEMEFTEAESNM NDLVSEYQQYQDATAEEEGEMYEDDEEESEAQGPKENLYFQ human microtubule end-binding protein 3 (EB3) Homo sapiens Escherichia coli BL21 LEVO MAVNVYSTSVTSENLSRHDMLAWVNDSLHLNYTKIEQLCSGAAYCQFMDMLFPGCVHLRK VKFQAKLEHEYIHNFKVLQAAFKKMGVDKIIPVEKLVKGKFQDNFEFIQWFKKFFDANYD GKDYNPLLARQGQDVAPPPNPGDQIFNKSKKLIGTAVPQRTSPTGPKNMQTSGRLSNVAP PCILRKNPPSARNGGHETDAQILELNQQLVDLKLTVDGLEKERDFYFSKLRDIELICQEH ESENSPVISGIIGILYATEEGFAPPEDDEIEEHQQEDQDEY helical helicalArray 4.2 6.8
80 mM PIPES, 1 mM EGTA, 5 mM MgCl2, 2 mM GTP, pH 6.8
 C-flat-1.2/1.3 COPPER 300 GLOW DISCHARGE ETHANE-PROPANE
42 uM [wildtype tubulin] assembled and pseudo-helical microtubules adsorbed onto the grid
 FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.6 1.0 2.7 64000.0 FEI TITAN KRIOS AUTOGRID HOLDER NITROGEN GATAN K3 BIOQUANTUM (6k x 4k) 40.0 1
Images collected in super-resolution mode, Motioncorr2 5x5 binning of frames
1 81.15 -0.29 C1 5.0 FSC 0.143 CUT-OFF FREALIGN 9.11 RELION 3.1 3825
Microtubules were picked within RELION 3.1 helical picking functionality and extracted along the filament with an 82A sliding box.
 EMD-7973
For the 13pf model, EMD-7973 was low pass filtered to 50A to serve as an initial model. In house reconstructions of 12-15pf at 50A resolution were used to separate by PF.
 NOT APPLICABLE FREALIGN 9.11
Due to the limited number of particles in this dataset, the final angular assignment was performed by symmetry expansion and focused classification on one pf in RELION 3.1. Frealign scripts were then used to recreate the pseudo-helical symmetry per usual.
 emd_25161.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 256 256 256 0 0 0 256 256 256 591.36 591.36 591.36 90.0 90.0 90.0 X Y Z -49.882719999999999 279.338649999999973 1.2228959 7.9097476 2.31 2.31 2.31 0.5 EMDB 13pf E254N microtubule decorated with EB3, from recombinant human tubulin 6DPU PDB experimental model RIGID BODY FIT Correlation Coefficient REAL 100.0