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- PDB-8uts: KIF1A[1-393] APO in complex with a microtubule -

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Basic information

Entry
Database: PDB / ID: 8uts
TitleKIF1A[1-393] APO in complex with a microtubule
Components
  • Kinesin-like protein KIF1A
  • Tubulin alpha-1B chain
  • Tubulin beta-2B chain
KeywordsMOTOR PROTEIN / KIF1A / kinesin / motility / microtubule / tubulin
Function / homology
Function and homology information


neuronal dense core vesicle membrane / plus-end-directed kinesin ATPase / dense core granule cytoskeletal transport / anterograde neuronal dense core vesicle transport / retrograde neuronal dense core vesicle transport / regulation of dendritic spine development / regulation of dendritic spine morphogenesis / anterograde axonal transport / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Resolution of Sister Chromatid Cohesion ...neuronal dense core vesicle membrane / plus-end-directed kinesin ATPase / dense core granule cytoskeletal transport / anterograde neuronal dense core vesicle transport / retrograde neuronal dense core vesicle transport / regulation of dendritic spine development / regulation of dendritic spine morphogenesis / anterograde axonal transport / Microtubule-dependent trafficking of connexons from Golgi to the plasma membrane / Resolution of Sister Chromatid Cohesion / Hedgehog 'off' state / Cilium Assembly / Intraflagellar transport / COPI-dependent Golgi-to-ER retrograde traffic / Mitotic Prometaphase / Carboxyterminal post-translational modifications of tubulin / RHOH GTPase cycle / EML4 and NUDC in mitotic spindle formation / Sealing of the nuclear envelope (NE) by ESCRT-III / Kinesins / PKR-mediated signaling / Separation of Sister Chromatids / The role of GTSE1 in G2/M progression after G2 checkpoint / Aggrephagy / plus-end-directed microtubule motor activity / Kinesins / RHO GTPases activate IQGAPs / RHO GTPases Activate Formins / kinesin complex / HSP90 chaperone cycle for steroid hormone receptors (SHR) in the presence of ligand / MHC class II antigen presentation / Recruitment of NuMA to mitotic centrosomes / COPI-mediated anterograde transport / COPI-dependent Golgi-to-ER retrograde traffic / neuronal dense core vesicle / cytoskeletal motor activity / microtubule-based process / vesicle-mediated transport / axon cytoplasm / structural constituent of cytoskeleton / microtubule cytoskeleton organization / mitotic cell cycle / microtubule cytoskeleton / microtubule binding / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / microtubule / axon / GTPase activity / synapse / dendrite / GTP binding / perinuclear region of cytoplasm / ATP hydrolysis activity / ATP binding / metal ion binding / identical protein binding / cytoplasm
Similarity search - Function
: / : / Kinesin-like KIF1-type / Kinesin protein 1B / Kinesin-like / Kinesin protein / Kinesin-associated / Kinesin-associated / Forkhead associated domain / Forkhead-associated (FHA) domain profile. ...: / : / Kinesin-like KIF1-type / Kinesin protein 1B / Kinesin-like / Kinesin protein / Kinesin-associated / Kinesin-associated / Forkhead associated domain / Forkhead-associated (FHA) domain profile. / FHA domain / Forkhead-associated (FHA) domain / Kinesin motor domain signature. / Kinesin motor domain, conserved site / Kinesin motor domain / Kinesin motor domain profile. / Kinesin motor, catalytic domain. ATPase. / Kinesin motor domain / SMAD/FHA domain superfamily / PH 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 / PH domain profile. / Pleckstrin homology domain. / Pleckstrin homology domain / PH-like domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
GUANOSINE-5'-DIPHOSPHATE / GUANOSINE-5'-TRIPHOSPHATE / TAXOL / Tubulin beta chain / Kinesin-like protein KIF1A / Tubulin alpha-1B chain
Similarity search - Component
Biological speciesHomo sapiens (human)
Sus scrofa (pig)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 2.7 Å
AuthorsBenoit, M.P.M.H. / Rao, L. / Asenjo, A.B. / Gennerich, A. / Sosa, H.
Funding support United States, 5items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM113164 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM098469 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01NS114636 United States
Simons FoundationSF349247 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM103310 United States
CitationJournal: Nat Commun / Year: 2024
Title: Cryo-EM unveils kinesin KIF1A's processivity mechanism and the impact of its pathogenic variant P305L.
Authors: Matthieu P M H Benoit / Lu Rao / Ana B Asenjo / Arne Gennerich / Hernando Sosa /
Abstract: Mutations in the microtubule-associated motor protein KIF1A lead to severe neurological conditions known as KIF1A-associated neurological disorders (KAND). Despite insights into its molecular ...Mutations in the microtubule-associated motor protein KIF1A lead to severe neurological conditions known as KIF1A-associated neurological disorders (KAND). Despite insights into its molecular mechanism, high-resolution structures of KIF1A-microtubule complexes remain undefined. Here, we present 2.7-3.5 Å resolution structures of dimeric microtubule-bound KIF1A, including the pathogenic P305L mutant, across various nucleotide states. Our structures reveal that KIF1A binds microtubules in one- and two-heads-bound configurations, with both heads exhibiting distinct conformations with tight inter-head connection. Notably, KIF1A's class-specific loop 12 (K-loop) forms electrostatic interactions with the C-terminal tails of both α- and β-tubulin. The P305L mutation does not disrupt these interactions but alters loop-12's conformation, impairing strong microtubule-binding. Structure-function analysis reveals the K-loop and head-head coordination as major determinants of KIF1A's superprocessive motility. Our findings advance the understanding of KIF1A's molecular mechanism and provide a basis for developing structure-guided therapeutics against KAND.
History
DepositionOct 31, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 12, 2024Provider: repository / Type: Initial release
Revision 1.1Jun 19, 2024Group: Author supporting evidence / Category: em_helical_entity / Item: _em_helical_entity.axial_rise_per_subunit
Revision 1.2Jul 31, 2024Group: Data collection / Database references / Category: citation / em_admin
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
K: Kinesin-like protein KIF1A
A: Tubulin alpha-1B chain
B: Tubulin beta-2B chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)151,3377
Polymers149,4933
Non-polymers1,8454
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Protein , 3 types, 3 molecules KAB

#1: Protein Kinesin-like protein KIF1A / Axonal transporter of synaptic vesicles / Microtubule-based motor KIF1A / Unc-104- and KIF1A- ...Axonal transporter of synaptic vesicles / Microtubule-based motor KIF1A / Unc-104- and KIF1A-related protein / hUnc-104


Mass: 49288.438 Da / Num. of mol.: 1 / Fragment: residues 1-393
Source method: isolated from a genetically manipulated source
Details: "linker" residues are comprised of a leucine zipper based on S. cerevisiae GCN4, which is followed by the C-terminal strep-tag
Source: (gene. exp.) Homo sapiens (human) / Gene: KIF1A, ATSV, C2orf20 / Production host: Escherichia coli (E. coli) / References: UniProt: Q12756
#2: Protein Tubulin alpha-1B chain / Alpha-tubulin ubiquitous / Tubulin K-alpha-1 / Tubulin alpha-ubiquitous chain


Mass: 50204.445 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: Q2XVP4
#3: Protein Tubulin beta-2B chain


Mass: 49999.887 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A287AGU7

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Non-polymers , 4 types, 4 molecules

#4: Chemical ChemComp-GTP / GUANOSINE-5'-TRIPHOSPHATE


Mass: 523.180 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N5O14P3 / Comment: GTP, energy-carrying molecule*YM
#5: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#6: Chemical ChemComp-GDP / GUANOSINE-5'-DIPHOSPHATE


Type: RNA linking / Mass: 443.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O11P2 / Comment: GDP, energy-carrying molecule*YM
#7: Chemical ChemComp-TA1 / TAXOL


Mass: 853.906 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C47H51NO14 / Comment: medication, chemotherapy*YM

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Details

Has ligand of interestN

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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

ComponentName: KIF1A[1-393] APO in complex with a 15R microtubule / Type: COMPLEX / Entity ID: #1-#3 / Source: MULTIPLE SOURCES
Molecular weightExperimental value: NO
Buffer solutionpH: 6.8
Buffer component
IDConc.NameBuffer-ID
180 mMK-PIPES1
220 uMPaclitaxel1
31 mMMagnesium chloride1
41 mMEGTA1
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid type: UltrAuFoil
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 62.9 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Helical symmertyAngular rotation/subunit: 168.09 ° / Axial rise/subunit: 5.61 Å / Axial symmetry: C1
3D reconstructionResolution: 2.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 685161
Details: Number of asymmetric units used is reported in "number of segments used", due to the local processing strategy employed.
Symmetry type: HELICAL

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