[English] 日本語
Yorodumi
- PDB-2p4n: Human Monomeric Kinesin (1BG2) and Bovine Tubulin (1JFF) Docked i... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 2p4n
TitleHuman Monomeric Kinesin (1BG2) and Bovine Tubulin (1JFF) Docked into the 9-Angstrom Cryo-EM Map of Nucleotide-Free Kinesin Complexed to the Microtubule
Components
  • Kinesin heavy chain
  • Tubulin alpha chain
  • Tubulin beta chain
KeywordsTRANSPORT PROTEIN / Motor protein / ATPase
Function / homology
Function and homology information


cytoplasm organization / cytolytic granule membrane / plus-end-directed vesicle transport along microtubule / anterograde neuronal dense core vesicle transport / anterograde dendritic transport of neurotransmitter receptor complex / mitocytosis / retrograde neuronal dense core vesicle transport / anterograde axonal protein transport / vesicle transport along microtubule / lysosome localization ...cytoplasm organization / cytolytic granule membrane / plus-end-directed vesicle transport along microtubule / anterograde neuronal dense core vesicle transport / anterograde dendritic transport of neurotransmitter receptor complex / mitocytosis / retrograde neuronal dense core vesicle transport / anterograde axonal protein transport / vesicle transport along microtubule / lysosome localization / positive regulation of potassium ion transport / natural killer cell mediated cytotoxicity / Kinesins / plus-end-directed microtubule motor activity / RHO GTPases activate KTN1 / stress granule disassembly / positive regulation of axon guidance / COPI-dependent Golgi-to-ER retrograde traffic / mitochondrion transport along microtubule / ciliary rootlet / centrosome localization / kinesin complex / synaptic vesicle transport / microtubule motor activity / microtubule-based movement / Insulin processing / centriolar satellite / Signaling by ALK fusions and activated point mutants / Nuclear events stimulated by ALK signaling in cancer / microtubule-based process / phagocytic vesicle / axon cytoplasm / MHC class II antigen presentation / dendrite cytoplasm / regulation of membrane potential / axon guidance / positive regulation of synaptic transmission, GABAergic / positive regulation of protein localization to plasma membrane / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / structural constituent of cytoskeleton / microtubule cytoskeleton organization / cellular response to type II interferon / microtubule cytoskeleton / mitotic cell cycle / nervous system development / microtubule binding / vesicle / microtubule / hydrolase activity / cadherin binding / protein heterodimerization activity / GTPase activity / protein-containing complex binding / GTP binding / perinuclear region of cytoplasm / ATP hydrolysis activity / mitochondrion / ATP binding / membrane / identical protein binding / metal ion binding / cytosol / cytoplasm
Similarity search - Function
Kinesin-like protein / 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 ...Kinesin-like protein / 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
ADENOSINE-5'-DIPHOSPHATE / GUANOSINE-5'-DIPHOSPHATE / GUANOSINE-5'-TRIPHOSPHATE / TAXOL / Tubulin alpha-1A chain / Kinesin-1 heavy chain / Tubulin beta-2B chain
Similarity search - Component
Biological speciesHomo sapiens (human)
Bos taurus (cattle)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 9 Å
AuthorsSindelar, C.V. / Downing, K.H.
CitationJournal: J Cell Biol / Year: 2007
Title: The beginning of kinesin's force-generating cycle visualized at 9-A resolution.
Authors: Charles V Sindelar / Kenneth H Downing /
Abstract: We have used cryo-electron microscopy of kinesin-decorated microtubules to resolve the structure of the motor protein kinesin's crucial nucleotide response elements, switch I and the switch II helix, ...We have used cryo-electron microscopy of kinesin-decorated microtubules to resolve the structure of the motor protein kinesin's crucial nucleotide response elements, switch I and the switch II helix, in kinesin's poorly understood nucleotide-free state. Both of the switch elements undergo conformational change relative to the microtubule-free state. The changes in switch I suggest a role for it in "ejecting" adenosine diphosphate when kinesin initially binds to the microtubule. The switch II helix has an N-terminal extension, apparently stabilized by conserved microtubule contacts, implying a microtubule activation mechanism that could convey the state of the bound nucleotide to kinesin's putative force-delivering element (the "neck linker"). In deriving this structure, we have adapted an image-processing technique, single-particle reconstruction, for analyzing decorated microtubules. The resulting reconstruction visualizes the asymmetric seam present in native, 13-protofilament microtubules, and this method will provide an avenue to higher-resolution characterization of a variety of microtubule- binding proteins, as well as the microtubule itself.
History
DepositionMar 12, 2007Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 8, 2008Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Jul 18, 2018Group: Author supporting evidence / Data collection
Category: em_image_scans / em_single_particle_entity / em_software
Item: _em_software.image_processing_id
Revision 1.3Feb 21, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / em_3d_fitting_list / pdbx_initial_refinement_model / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id / _em_3d_fitting_list.source_name / _em_3d_fitting_list.type / _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.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

-
Structure visualization

Movie
  • Deposited structure unit
  • Imaged by Jmol
  • Download
  • Simplified surface model + fitted atomic model
  • EMDB-1340
  • Imaged by Jmol
  • Download
  • Superimposition on EM map
  • EMDB-1340
  • Imaged by UCSF Chimera
  • Download
  • Superimposition on EM map
  • EMDB-1340
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
K: Kinesin heavy chain
A: Tubulin alpha chain
B: Tubulin beta chain
hetero molecules


Theoretical massNumber of molelcules
Total (without water)138,79610
Polymers136,4343
Non-polymers2,3627
Water0
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

-
Components

-
Protein , 3 types, 3 molecules KAB

#1: Protein Kinesin heavy chain / / Ubiquitous kinesin heavy chain / UKHC


Mass: 36405.070 Da / Num. of mol.: 1 / Fragment: K349 Construct of Human Kinesin / Source method: isolated from a natural source
Details: The actual construct used in the EM studies is a mutant protein (called cys-lite)
Source: (natural) Homo sapiens (human) / References: UniProt: P33176*PLUS
#2: Protein Tubulin alpha chain


Mass: 50121.266 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: P02550*PLUS
#3: Protein Tubulin beta chain / Beta tubulin


Mass: 49907.770 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Bos taurus (cattle) / References: UniProt: Q6B856*PLUS

-
Non-polymers , 6 types, 7 molecules

#4: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#5: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE / Adenosine diphosphate


Mass: 427.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Comment: ADP, energy-carrying molecule*YM
#6: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#7: Chemical ChemComp-GTP / GUANOSINE-5'-TRIPHOSPHATE / Guanosine triphosphate


Mass: 523.180 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N5O14P3 / Comment: GTP, energy-carrying molecule*YM
#8: Chemical ChemComp-GDP / GUANOSINE-5'-DIPHOSPHATE / Guanosine diphosphate


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


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

-
Details

Sequence detailsTHE SEQUENCE OF KINESIN (CHAIN K) IN THE SAMPLE INCLUDED MUTATIONS.THE CONSTRUCT IS KNOWN AS CYS- ...THE SEQUENCE OF KINESIN (CHAIN K) IN THE SAMPLE INCLUDED MUTATIONS.THE CONSTRUCT IS KNOWN AS CYS-LITE. MODEL CRYSTAL STRUCTURE FOR FITTING THE MAP WAS THE NATIVE SEQUENCE. IN THE CASE OF TUBULIN A AND B (CHAINS A AND B), THE SEQUENCE IN THE SAMPLE WAS DERIVED FROM COW, WHILE THE MODEL USED FOR FITTING THE MAP WAS A PIG PROTEIN.

-
Experimental details

-
Experiment

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

-
Sample preparation

Component
IDNameTypeParent-IDDetails
1Nucleotide-free kinesin bound to a 13-protofilament microtubuleCOMPLEX0
2Kinesin heavy chain1microtubule associated complex
3Tubulin alpha chain1microtubule
4Tubulin beta chain1microtubule
Buffer solutionpH: 6.8
SpecimenEmbedding applied: YES / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportDetails: 300 mesh copper grid
VitrificationInstrument: HOMEMADE PLUNGER / Cryogen name: ETHANE / Details: ETHANE

-
Electron microscopy imaging

MicroscopyModel: JEOL 4000
Electron gunElectron source: LAB6 / Accelerating voltage: 400 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy / Nominal magnification: 60000 X / Nominal defocus max: 1500 nm / Nominal defocus min: 700 nm / Cs: 4.1 mm
Specimen holderTemperature: 103.15 K / Tilt angle max: 0 ° / Tilt angle min: 0 °
Image recordingElectron dose: 16 e/Å2 / Film or detector model: KODAK SO-163 FILM

-
Processing

EM software
IDNameCategory
1Situsmodel fitting
2SPIDER3D reconstruction
CTF correctionDetails: CTF correction was integrated into the back projection process with a customized C program
3D reconstructionMethod: Back projection with integrated CTF correction / Resolution: 9 Å / Num. of particles: 150000 / Nominal pixel size: 1 Å / Actual pixel size: 0.98 Å
Magnification calibration: The magnification was calibrated by assuming a microtubule dimer spacing of 80.0 Angstroms.
Details: Single-particle analysis was employed. / Symmetry type: HELICAL
Atomic model buildingSpace: RECIPROCAL
Atomic model building
IDPDB-ID 3D fitting-IDAccession codeInitial refinement model-IDSource nameType
11JFF

1jff

11JFF1PDBexperimental model
21BG2

1bg2

11BG22PDBexperimental model
Refinement stepCycle: LAST
ProteinNucleic acidLigandSolventTotal
Num. atoms9112 0 152 0 9264

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more