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- PDB-3jaw: Atomic model of a microtubule seam based on a cryo-EM reconstruct... -

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Basic information

Entry
Database: PDB / ID: 3jaw
TitleAtomic model of a microtubule seam based on a cryo-EM reconstruction of the EB3-bound microtubule (merged dataset containing tubulin bound to GTPgammaS, GMPCPP, and GDP)
Components
  • Tubulin alpha-1B chain
  • Tubulin beta chain
KeywordsSTRUCTURAL PROTEIN / microtubule / EB3 / seam
Function / homology
Function and homology information


Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport / COPI-dependent Golgi-to-ER retrograde traffic / Carboxyterminal post-translational modifications of tubulin / RHOH GTPase cycle / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / PKR-mediated signaling ...Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport / COPI-dependent Golgi-to-ER retrograde traffic / Carboxyterminal post-translational modifications of tubulin / RHOH GTPase cycle / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / PKR-mediated signaling / Resolution of Sister Chromatid Cohesion / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Separation of Sister Chromatids / The role of GTSE1 in G2/M progression after G2 checkpoint / Aggrephagy / Recruitment of NuMA to mitotic centrosomes / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / COPI-independent Golgi-to-ER retrograde traffic / MHC class II antigen presentation / COPI-mediated anterograde transport / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / structural constituent of cytoskeleton / microtubule cytoskeleton organization / microtubule cytoskeleton / mitotic cell cycle / microtubule / GTPase activity / GTP binding / metal ion binding / cytoplasm
Similarity search - Function
Helix hairpin bin / Tubulin/FtsZ, C-terminal domain / Tubulin/FtsZ, GTPase domain / 60s Ribosomal Protein L30; Chain: A; / Tubulin-beta mRNA autoregulation signal. / Alpha tubulin / Beta tubulin, autoregulation binding site / Beta tubulin / Tubulin / Tubulin, C-terminal ...Helix hairpin bin / Tubulin/FtsZ, C-terminal domain / Tubulin/FtsZ, GTPase domain / 60s Ribosomal Protein L30; Chain: A; / Tubulin-beta mRNA autoregulation signal. / Alpha tubulin / Beta tubulin, autoregulation binding site / Beta tubulin / Tubulin / Tubulin, C-terminal / Tubulin C-terminal domain / Tubulin, conserved site / Tubulin subunits alpha, beta, and gamma signature. / Tubulin/FtsZ family, C-terminal domain / Tubulin/FtsZ-like, C-terminal domain / Tubulin/FtsZ, C-terminal / Tubulin/FtsZ, 2-layer sandwich domain / Tubulin/FtsZ family, GTPase domain / Tubulin/FtsZ family, GTPase domain / Tubulin/FtsZ, GTPase domain / Tubulin/FtsZ, GTPase domain superfamily / Helix Hairpins / Rossmann fold / 2-Layer Sandwich / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE / GUANOSINE-5'-TRIPHOSPHATE / Tubulin beta chain / Tubulin alpha-1B chain
Similarity search - Component
Biological speciesSus scrofa (pig)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsZhang, R. / Nogales, E.
CitationJournal: Cell / Year: 2015
Title: Mechanistic Origin of Microtubule Dynamic Instability and Its Modulation by EB Proteins.
Authors: Rui Zhang / Gregory M Alushin / Alan Brown / Eva Nogales /
Abstract: Microtubule (MT) dynamic instability is driven by GTP hydrolysis and regulated by microtubule-associated proteins, including the plus-end tracking end-binding protein (EB) family. We report six cryo- ...Microtubule (MT) dynamic instability is driven by GTP hydrolysis and regulated by microtubule-associated proteins, including the plus-end tracking end-binding protein (EB) family. We report six cryo-electron microscopy (cryo-EM) structures of MTs, at 3.5 Å or better resolution, bound to GMPCPP, GTPγS, or GDP, either decorated with kinesin motor domain after polymerization or copolymerized with EB3. Subtle changes around the E-site nucleotide during hydrolysis trigger conformational changes in α-tubulin around an "anchor point," leading to global lattice rearrangements and strain generation. Unlike the extended lattice of the GMPCPP-MT, the EB3-bound GTPγS-MT has a compacted lattice that differs in lattice twist from that of the also compacted GDP-MT. These results and the observation that EB3 promotes rapid hydrolysis of GMPCPP suggest that EB proteins modulate structural transitions at growing MT ends by recognizing and promoting an intermediate state generated during GTP hydrolysis. Our findings explain both EBs end-tracking behavior and their effect on microtubule dynamics.
History
DepositionJun 30, 2015Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 12, 2015Provider: repository / Type: Initial release
Revision 1.1Sep 2, 2015Group: Database references
Revision 1.2Jul 18, 2018Group: Author supporting evidence / Data collection / Category: em_single_particle_entity / em_software / Item: _em_software.image_processing_id / _em_software.name
Revision 1.3Feb 21, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_struct_conn_angle / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_label_asym_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

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Structure viewerMolecule:
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Assembly

Deposited unit
A: Tubulin alpha-1B chain
B: Tubulin beta chain
C: Tubulin alpha-1B chain
D: Tubulin beta chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)202,39810
Polymers200,2244
Non-polymers2,1736
Water0
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551
SymmetryHelical symmetry: (Circular symmetry: 1 / Dyad axis: no / N subunits divisor: 1 / Num. of operations: 1 / Rise per n subunits: 9.44 Å / Rotation per n subunits: -27.71 °)

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Components

#1: Protein Tubulin alpha-1B chain / Alpha-tubulin ubiquitous / Tubulin K-alpha-1 / Tubulin alpha-ubiquitous chain


Mass: 50204.445 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: Q2XVP4
#2: Protein Tubulin beta chain / Beta-tubulin


Mass: 49907.770 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: P02554
#3: Chemical ChemComp-GTP / GUANOSINE-5'-TRIPHOSPHATE / Guanosine triphosphate


Mass: 523.180 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H16N5O14P3 / Comment: GTP, energy-carrying molecule*YM
#4: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#5: Chemical ChemComp-GSP / 5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE


Mass: 539.246 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C10H16N5O13P3S

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: FILAMENT / 3D reconstruction method: helical reconstruction

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Sample preparation

Component
IDNameTypeDetailsParent-ID
1EB3-bound microtubule (merged dataset containing tubulin bound to GTPgammaS, GMPCPP and GDP)COMPLEXhelical assembly0
2alpha tubulin1
3Beta tubulin1
4EB31
Molecular weightValue: 14.6 MDa / Experimental value: NO
Buffer solutionName: BRB80 / pH: 6.8
Details: 80 mM PIPES, 1 mM EGTA, 1 mM MgCl2, 1 mM DTT, 0.05% Nonidet P-40
SpecimenConc.: 1.5 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: 400 mesh C-flat 1.2/1.3 EM grid, glow discharged in Ar/O2 gas (Solarus, Gatan Inc)
VitrificationInstrument: FEI VITROBOT MARK II / Cryogen name: ETHANE / Temp: 90.4 K / Humidity: 95 %
Details: Blot once for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK II).
Method: Blot once for 4 seconds before plunging.

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Electron microscopy imaging

MicroscopyModel: FEI TITAN / Date: May 16, 2013
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal magnification: 27500 X / Calibrated magnification: 27500 X / Nominal defocus max: 3500 nm / Nominal defocus min: 1000 nm / Cs: 2.7 mm
Specimen holderSpecimen holder model: GATAN LIQUID NITROGEN / Specimen holder type: Gatan 626 holder / Temperature: 90 K
Image recordingElectron dose: 27.6 e/Å2 / Film or detector model: GATAN K2 (4k x 4k)
Details: The camera was operated in counting mode with a dose rate of ~8 electrons/pixel/s. A total exposure time of 6 seconds was fractionated into 20 movie frames.
Image scansNum. digital images: 922
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthRelative weight: 1

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Processing

EM software
IDNameVersionCategory
1EMAN13D reconstruction
2FREALIGN3D reconstruction
CTF correctionDetails: CTFFIND4, each particle
Helical symmertyAngular rotation/subunit: 27.71 ° / Axial rise/subunit: 9.44 Å / Axial symmetry: C1
3D reconstructionMethod: projection matching / Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 79702 / Nominal pixel size: 1.32 Å / Actual pixel size: 1.32 Å / Details: asymmetric (C1) reconstruction / Symmetry type: HELICAL
RefinementResolution: 3.9→118.8 Å / Cor.coef. Fo:Fc: 0.881 / SU B: 52.885 / SU ML: 0.722 / σ(F): 0
Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflection
Rwork0.3506 --
obs0.3506 43454 100 %
Solvent computationSolvent model: NONE
Displacement parametersBiso max: 288.25 Å2 / Biso mean: 72.487 Å2 / Biso min: 18.5 Å2
Baniso -1Baniso -2Baniso -3
1--2.09 Å2-2.3 Å2-0.1 Å2
2--5.08 Å2-0 Å2
3----2.99 Å2
Refinement stepCycle: LAST / Resolution: 3.9→118.8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms13502 0 130 0 13632
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
ELECTRON MICROSCOPYr_bond_refined_d0.0080.01913942
ELECTRON MICROSCOPYr_bond_other_d0.0020.0212842
ELECTRON MICROSCOPYr_angle_refined_deg1.3791.95918944
ELECTRON MICROSCOPYr_angle_other_deg0.947329546
ELECTRON MICROSCOPYr_dihedral_angle_1_deg8.854.7381963
ELECTRON MICROSCOPYr_dihedral_angle_2_deg37.20224.223663
ELECTRON MICROSCOPYr_dihedral_angle_3_deg16.948152257
ELECTRON MICROSCOPYr_dihedral_angle_4_deg13.251586
ELECTRON MICROSCOPYr_chiral_restr0.0810.22070
ELECTRON MICROSCOPYr_gen_planes_refined0.0050.02115922
ELECTRON MICROSCOPYr_gen_planes_other0.0010.023280
ELECTRON MICROSCOPYr_mcbond_it3.0327.1096882
ELECTRON MICROSCOPYr_mcbond_other3.0327.1076881
ELECTRON MICROSCOPYr_mcangle_it5.50910.658592
LS refinement shellResolution: 3.9→4.001 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rwork0.573 3213 -
obs--100 %

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