4L6Y

Structure of the microtubule associated protein PRC1 (Protein Regulator of Cytokinesis 1)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.275 
  • R-Value Observed: 0.276 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Marking and Measuring Single Microtubules by PRC1 and Kinesin-4.

Subramanian, R.Ti, S.C.Tan, L.Darst, S.A.Kapoor, T.M.

(2013) Cell 154: 377-390

  • DOI: 10.1016/j.cell.2013.06.021
  • Primary Citation of Related Structures:  
    4L3I, 4L6Y

  • PubMed Abstract: 
  • Error-free cell division depends on the assembly of the spindle midzone, a specialized array of overlapping microtubules that emerges between segregating chromosomes during anaphase. The molecular mechanisms by which a subset of dynamic microtubules from the metaphase spindle are selected and organized into a stable midzone array are poorly understood ...

    Error-free cell division depends on the assembly of the spindle midzone, a specialized array of overlapping microtubules that emerges between segregating chromosomes during anaphase. The molecular mechanisms by which a subset of dynamic microtubules from the metaphase spindle are selected and organized into a stable midzone array are poorly understood. Here, we show using in vitro reconstitution assays that PRC1 and kinesin-4, two microtubule-associated proteins required for midzone assembly, can tag microtubule plus ends. Remarkably, the size of these tags is proportional to filament length. We determine the crystal structure of the PRC1 homodimer and map the protein-protein interactions needed for tagging microtubule ends. Importantly, length-dependent microtubule plus-end-tagging by PRC1 is also observed in dividing cells. Our findings suggest how biochemically similar microtubules can be differentially marked, based on length, for selective regulation during the formation of specialized arrays, such as those required for cytokinesis.


    Organizational Affiliation

    Laboratory of Chemistry and Cell Biology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein regulator of cytokinesis 1 AB490Homo sapiensMutation(s): 1 
Gene Names: PRC1
Find proteins for O43663 (Homo sapiens)
Explore O43663 
Go to UniProtKB:  O43663
NIH Common Fund Data Resources
PHAROS:  O43663
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.30 Å
  • R-Value Free: 0.306 
  • R-Value Work: 0.275 
  • R-Value Observed: 0.276 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.66α = 90
b = 209.8β = 105.64
c = 113.41γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-07-17
    Type: Initial release
  • Version 1.1: 2013-08-07
    Changes: Database references
  • Version 1.2: 2017-11-15
    Changes: Refinement description