REL RCSB RCSB RCSB 2011-08-10 2011-08-11 2012-06-21 2014-04-02 Cryo-electron tomography reveals novel interactions and doublet-specific structures in the I1 dynein Heuser T Barber CF Lin J Krell J Rebesco M Porter ME Nicastro D axoneme,molecular motor,motility regulation,flagella Heuser T Barber CF Lin J Krell J Rebesco M Porter ME Nicastro D Cryoelectron tomography reveals doublet-specific structures and unique interactions in the I1 dynein. PROC.NAT.ACAD.SCI.USA 109 e2067 e2076 2012 22733763 doi:10.1073/pnas.1120690109 Cryo-electron tomography and subtomographic average (750 axonemal repeats) of isolated axonemes of wild type Chlamydomonas (CC 125, 137c), I1 dynein complex (dynein f) is bound to the doublet microtubule and is connected to neighboring structures. Cryo-electron tomography and subtomographic average (750 axonemal repeats) of isolated axonemes of wild type Chlamydomonas (CC 125, 137c), I1 dynein complex (dynein f) is bound to the doublet microtubule and is connected to neighboring structures. 1 I1 dynein complex 2 false Chlamydomonas reinhardtii CC-125, 137c unicellular green algae Chlamydomonas reinhardtii eukaryotic flagella subtomogramAveraging 1 7.4
10 mM HEPES, pH 7.4, 25 mM NaCl, 4 mM MgSO4, 1 mM EGTA, 0.1 mM EDTA
Quantifoil holey carbon grids Cu 200 mesh R2/2
 ETHANE 100 HOMEMADE PLUNGER front-side blotting for 2-3 seconds FEI TECNAI F30 OTHER BRIGHT FIELD FIELD EMISSION GUN 300 6.0 8.0 13500.0 GATAN LIQUID NITROGEN 80 GATAN postcolumn filter GIF 0.0 20.0 2004-02-20 GENERIC GATAN (2k x 2k) 100 Eucentric -60 60
750 axonemal repeats (96 nm long) from 5 tomograms (reconstructed using fiducial alignment and weighted backprojection, IMOD software, Kremer et al. 1996) were aligned and averaged using the PEET software (bio3d.colorado.edu, Nicastro et al. 2006). Average number of tilts used in the 3D reconstructions: 80. Average tomographic tilt angle increment: 1.5.
OTHER 39.0 FSC 0.5 CUT-OFF IMOD
Final maps were calculated by averaging 750 particles from 5 tomograms
 emd_5330.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 55 40 40 -21 -53 -64 55 40 40 380.0 522.5 380.0 90.0 90.0 90.0 X Y Z 109.595199579999999 148.880630489999987 124.201629639999993 5.68234873 9.5 9.5 9.5 127.5 AUTHOR This is a subtomogram average of the I1 inner dynein complex in wild type Chlamydomonas flagella
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