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- EMDB-3530: Ustilago maydis kinesin-5 motor domain with N-terminal extension ... -

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Basic information

Entry
Database: EMDB / ID: EMD-3530
TitleUstilago maydis kinesin-5 motor domain with N-terminal extension in the AMPPNP state bound to microtubules
Map dataMicrotubule-bound Ustilago maydis kinesin-5 motor domain with N-terminal extension in the AMPPNP state
Sample
  • Complex: Ternary complex of alpha-beta-tubulin stabilized by taxol and decorated with Ustilago maydis kinesin-5 motordomain with N-terminal extension
    • Complex: kinesin-5Kinesin-like protein KIF11
      • Protein or peptide: kinesin-5Kinesin-like protein KIF11
    • Complex: Tubulin alpha-1A chain
      • Protein or peptide: Tubulin alpha-1A chain
    • Complex: Tubulin beta chain
      • Protein or peptide: Tubulin beta chain
  • Ligand: MAGNESIUM ION
  • Ligand: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
  • Ligand: GUANOSINE-5'-TRIPHOSPHATEGuanosine triphosphate
  • Ligand: TAXOLPaclitaxel
  • Ligand: GUANOSINE-5'-DIPHOSPHATE
Function / homology
Function and homology information


initial mitotic spindle pole body separation / spindle elongation / plus-end-directed microtubule motor activity / microtubule-based movement / mitotic spindle assembly / spindle microtubule / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / structural constituent of cytoskeleton / mitotic spindle / microtubule cytoskeleton organization ...initial mitotic spindle pole body separation / spindle elongation / plus-end-directed microtubule motor activity / microtubule-based movement / mitotic spindle assembly / spindle microtubule / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / structural constituent of cytoskeleton / mitotic spindle / microtubule cytoskeleton organization / mitotic cell cycle / microtubule binding / microtubule / hydrolase activity / GTPase activity / GTP binding / ATP binding / metal ion binding / nucleus / cytoplasm
Similarity search - Function
: / : / Kinesin motor domain signature. / Kinesin motor domain, conserved site / Kinesin motor domain / Kinesin motor domain profile. / Kinesin motor, catalytic domain. ATPase. / Kinesin motor domain / Kinesin motor domain superfamily / Tubulin-beta mRNA autoregulation signal. ...: / : / Kinesin motor domain signature. / Kinesin motor domain, conserved site / Kinesin motor domain / Kinesin motor domain profile. / Kinesin motor, catalytic domain. ATPase. / Kinesin motor domain / Kinesin motor domain superfamily / 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 / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Kinesin motor domain-containing protein / Tubulin alpha-1A chain / Tubulin beta chain
Similarity search - Component
Biological speciesUstilago maydis (fungus) / Sus scrofa (pig)
Methodsingle particle reconstruction / cryo EM / Resolution: 5.1 Å
AuthorsMoores CA / von Loeffelholz O
Funding support United Kingdom, 1 items
OrganizationGrant numberCountry
Biotechnology and Biological Sciences Research CouncilL00190X/1 United Kingdom
CitationJournal: J Struct Biol / Year: 2019
Title: Cryo-EM structure of the Ustilago maydis kinesin-5 motor domain bound to microtubules.
Authors: Ottilie von Loeffelholz / Carolyn Ann Moores /
Abstract: In many eukaryotes, kinesin-5 motors are essential for mitosis, and small molecules that inhibit human kinesin-5 disrupt cell division. To investigate whether fungal kinesin-5s could be targets for ...In many eukaryotes, kinesin-5 motors are essential for mitosis, and small molecules that inhibit human kinesin-5 disrupt cell division. To investigate whether fungal kinesin-5s could be targets for novel fungicides, we studied kinesin-5 from the pathogenic fungus Ustilago maydis. We used cryo-electron microscopy to determine the microtubule-bound structure of its motor domain with and without the N-terminal extension. The ATP-like conformations of the motor in the presence or absence of this N-terminus are very similar, suggesting this region is structurally disordered and does not directly influence the motor ATPase. The Ustilago maydis kinesin-5 motor domain adopts a canonical ATP-like conformation, thereby allowing the neck linker to bind along the motor domain towards the microtubule plus end. However, several insertions within this motor domain are structurally distinct. Loop2 forms a non-canonical interaction with α-tubulin, while loop8 may bridge between two adjacent protofilaments. Furthermore, loop5 - which in human kinesin-5 is involved in binding allosteric inhibitors - protrudes above the nucleotide binding site, revealing a distinct binding pocket for potential inhibitors. This work highlights fungal-specific elaborations of the kinesin-5 motor domain and provides the structural basis for future investigations of kinesins as targets for novel fungicides.
History
DepositionDec 8, 2016-
Header (metadata) releaseJan 11, 2017-
Map releaseAug 8, 2018-
UpdateDec 11, 2019-
Current statusDec 11, 2019Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.0535
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.0535
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-5mm7
  • Surface level: 0.0535
  • Imaged by UCSF Chimera
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  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-5mm7
  • Imaged by Jmol
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

Downloads & links

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Map

FileDownload / File: emd_3530.map.gz / Format: CCP4 / Size: 1.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationMicrotubule-bound Ustilago maydis kinesin-5 motor domain with N-terminal extension in the AMPPNP state
Voxel sizeX=Y=Z: 1.39 Å
Density
Contour LevelBy AUTHOR: 0.0535 / Movie #1: 0.0535
Minimum - Maximum-0.049994238 - 0.19904202
Average (Standard dev.)0.028387314 (±0.042107515)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions698080
Spacing806980
CellA: 111.2 Å / B: 95.909996 Å / C: 111.2 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.391.391.39
M x/y/z806980
origin x/y/z0.0000.0000.000
length x/y/z111.20095.910111.200
α/β/γ90.00090.00090.000
start NX/NY/NZ000
NX/NY/NZ364364364
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS806980
D min/max/mean-0.0500.1990.028

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Supplemental data

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Sample components

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Entire : Ternary complex of alpha-beta-tubulin stabilized by taxol and dec...

EntireName: Ternary complex of alpha-beta-tubulin stabilized by taxol and decorated with Ustilago maydis kinesin-5 motordomain with N-terminal extension
Components
  • Complex: Ternary complex of alpha-beta-tubulin stabilized by taxol and decorated with Ustilago maydis kinesin-5 motordomain with N-terminal extension
    • Complex: kinesin-5Kinesin-like protein KIF11
      • Protein or peptide: kinesin-5Kinesin-like protein KIF11
    • Complex: Tubulin alpha-1A chain
      • Protein or peptide: Tubulin alpha-1A chain
    • Complex: Tubulin beta chain
      • Protein or peptide: Tubulin beta chain
  • Ligand: MAGNESIUM ION
  • Ligand: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER
  • Ligand: GUANOSINE-5'-TRIPHOSPHATEGuanosine triphosphate
  • Ligand: TAXOLPaclitaxel
  • Ligand: GUANOSINE-5'-DIPHOSPHATE

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Supramolecule #1: Ternary complex of alpha-beta-tubulin stabilized by taxol and dec...

SupramoleculeName: Ternary complex of alpha-beta-tubulin stabilized by taxol and decorated with Ustilago maydis kinesin-5 motordomain with N-terminal extension
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3

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Supramolecule #2: kinesin-5

SupramoleculeName: kinesin-5 / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1
Source (natural)Organism: Ustilago maydis (fungus)
Recombinant expressionOrganism: Escherichia coli (E. coli)

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Supramolecule #3: Tubulin alpha-1A chain

SupramoleculeName: Tubulin alpha-1A chain / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #2
Source (natural)Organism: Sus scrofa (pig)
Recombinant expressionOrganism: Sus scrofa (pig)

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Supramolecule #4: Tubulin beta chain

SupramoleculeName: Tubulin beta chain / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #3
Source (natural)Organism: Sus scrofa (pig)
Recombinant expressionOrganism: Sus scrofa (pig)

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Macromolecule #1: kinesin-5

MacromoleculeName: kinesin-5 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Ustilago maydis (fungus)
Molecular weightTheoretical: 49.482207 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: SMSSSSSLRR QPSSSSLTRP AQPRSRAPSV APPVSSTGAA RRLTVNGTAQ SASRSASSAS NNSNELDRKR SDAGESNIQV VVRVRGQAP NEPKRTAPGI LTTSGPRCQQ IDVAIEAPQV SSSSAIASTS NLVQESATRQ KSYHFDQVFG PEADQGMVYQ D VVGPILEE ...String:
SMSSSSSLRR QPSSSSLTRP AQPRSRAPSV APPVSSTGAA RRLTVNGTAQ SASRSASSAS NNSNELDRKR SDAGESNIQV VVRVRGQAP NEPKRTAPGI LTTSGPRCQQ IDVAIEAPQV SSSSAIASTS NLVQESATRQ KSYHFDQVFG PEADQGMVYQ D VVGPILEE VMSGYNCTIF AYGQTGTGKT HTMEGDLTSQ MGTYSSEAGI IPRSLYRLFH TLELSKEDYS VKATFIELYN EE LRDLLSI DSSTSSAEPS SSATATKEPQ HALRMYDDAR GKGVVIQGLE EVALKDAAHG LSVLRRGSQK RQIAATNCNE QSS RSHSVF TMTVFIKDKG SRGEDVLKIG KLNLVDLAGS ENIGRSGAEN KRAREAGMIN QSLLTLGRVI NALVEKNSHI PYRE SKLTR LLQESLGGRT KTCIIATVSQ ERANIEETLS TLDYALRAKS IKNRPELNTR MT

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Macromolecule #2: Tubulin alpha-1A chain

MacromoleculeName: Tubulin alpha-1A chain / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Sus scrofa (pig)
Molecular weightTheoretical: 48.769988 KDa
Recombinant expressionOrganism: Sus scrofa (pig)
SequenceString: MRECISIHVG QAGVQIGNAC WELYCLEHGI QPDGQMPSDK TIGGGDDSFN TFFSETGAGK HVPRAVFVDL EPTVIDEVRT GTYRQLFHP EQLITGKEDA ANNYARGHYT IGKEIIDLVL DRIRKLADQC TGLQGFSVFH SFGGGTGSGF TSLLMERLSV D YGKKSKLE ...String:
MRECISIHVG QAGVQIGNAC WELYCLEHGI QPDGQMPSDK TIGGGDDSFN TFFSETGAGK HVPRAVFVDL EPTVIDEVRT GTYRQLFHP EQLITGKEDA ANNYARGHYT IGKEIIDLVL DRIRKLADQC TGLQGFSVFH SFGGGTGSGF TSLLMERLSV D YGKKSKLE FSIYPAPQVS TAVVEPYNSI LTTHTTLEHS DCAFMVDNEA IYDICRRNLD IERPTYTNLN RLIGQIVSSI TA SLRFDGA LNVDLTEFQT NLVPYPRGHF PLATYAPVIS AEKAYHEQLS VAEITNACFE PANQMVKCDP RHGKYMACCL LYR GDVVPK DVNAAIATIK TKRTIQFVDW CPTGFKVGIN YEPPTVVPGG DLAKVQRAVC MLSNTTAIAE AWARLDHKFD LMYA KRAFV HWYVGEGMEE GEFSEAREDM AALEKDYEEV GVDS

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Macromolecule #3: Tubulin beta chain

MacromoleculeName: Tubulin beta chain / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Sus scrofa (pig)
Molecular weightTheoretical: 47.940945 KDa
Recombinant expressionOrganism: Sus scrofa (pig)
SequenceString: MREIVHIQAG QCGNQIGAKF WEVISDEHGI DPTGSYHGDS DLQLERINVY YNEAAGNKYV PRAILVDLEP GTMDSVRSGP FGQIFRPDN FVFGQSGAGN NWAKGHYTEG AELVDSVLDV VRKESESCDC LQGFQLTHSL GGGTGSGMGT LLISKIREEY P DRIMNTFS ...String:
MREIVHIQAG QCGNQIGAKF WEVISDEHGI DPTGSYHGDS DLQLERINVY YNEAAGNKYV PRAILVDLEP GTMDSVRSGP FGQIFRPDN FVFGQSGAGN NWAKGHYTEG AELVDSVLDV VRKESESCDC LQGFQLTHSL GGGTGSGMGT LLISKIREEY P DRIMNTFS VVPSPKVSDT VVEPYNATLS VHQLVENTDE TYCIDNEALY DICFRTLKLT TPTYGDLNHL VSATMSGVTT CL RFPGQLN ADLRKLAVNM VPFPRLHFFM PGFAPLTSRG SQQYRALTVP ELTQQMFDAK NMMAACDPRH GRYLTVAAVF RGR MSMKEV DEQMLNVQNK NSSYFVEWIP NNVKTAVCDI PPRGLKMSAT FIGNSTAIQE LFKRISEQFT AMFRRKAFLH WYTG EGMDE MEFTEAESNM NDLVSEYQQY QD

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Macromolecule #4: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 4 / Number of copies: 2 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #5: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER

MacromoleculeName: PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER / type: ligand / ID: 5 / Number of copies: 1 / Formula: ANP
Molecular weightTheoretical: 506.196 Da
Chemical component information

ChemComp-ANP:
PHOSPHOAMINOPHOSPHONIC ACID-ADENYLATE ESTER / AMP-PNP, energy-carrying molecule analogue*YM

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Macromolecule #6: GUANOSINE-5'-TRIPHOSPHATE

MacromoleculeName: GUANOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 6 / Number of copies: 1 / Formula: GTP
Molecular weightTheoretical: 523.18 Da
Chemical component information

ChemComp-GTP:
GUANOSINE-5'-TRIPHOSPHATE / GTP, energy-carrying molecule*YM / Guanosine triphosphate

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Macromolecule #7: TAXOL

MacromoleculeName: TAXOL / type: ligand / ID: 7 / Number of copies: 1 / Formula: TA1
Molecular weightTheoretical: 853.906 Da
Chemical component information

ChemComp-TA1:
TAXOL / medication, chemotherapy*YM / Paclitaxel

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Macromolecule #8: GUANOSINE-5'-DIPHOSPHATE

MacromoleculeName: GUANOSINE-5'-DIPHOSPHATE / type: ligand / ID: 8 / Number of copies: 1 / Formula: GDP
Molecular weightTheoretical: 443.201 Da
Chemical component information

ChemComp-GDP:
GUANOSINE-5'-DIPHOSPHATE / GDP, energy-carrying molecule*YM / Guanosine diphosphate

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation statehelical array

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Sample preparation

BufferpH: 6.8
GridModel: Quantifoil / Material: COPPER / Mesh: 400
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI POLARA 300
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 QUANTUM (4k x 4k) / Average electron dose: 30.0 e/Å2
Experimental equipment
Model: Tecnai Polara / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:
Initial angle assignmentType: PROJECTION MATCHING
Final angle assignmentType: PROJECTION MATCHING
Final reconstructionResolution.type: BY AUTHOR / Resolution: 5.1 Å / Resolution method: FSC 0.143 CUT-OFF / Details: 13x symmetrisation / Number images used: 12629

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