5YFG

SOLUTION STRUCTURE OF HUMAN MOG1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Mitosis-specific acetylation tunes Ran effector binding for chromosome segregation

Bao, X.Liu, H.Liu, X.Ruan, K.Zhang, Y.Zhang, Z.Hu, Q.Liu, Y.Akram, S.Zhang, J.Gong, Q.Wang, W.Yuan, X.Li, J.Zhao, L.Dou, Z.Tian, R.Yao, X.Wu, J.Shi, Y.

(2018) J Mol Cell Biol 10: 18-32

  • DOI: 10.1093/jmcb/mjx045
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Stable transmission of genetic information during cell division requires faithful mitotic spindle assembly and chromosome segregation. The Ran GTPase plays a key role in mitotic spindle assembly. However, how the generation of a chemical gradient of ...

    Stable transmission of genetic information during cell division requires faithful mitotic spindle assembly and chromosome segregation. The Ran GTPase plays a key role in mitotic spindle assembly. However, how the generation of a chemical gradient of Ran-GTP at the spindle is coupled to mitotic post-translational modifications has never been characterized. Here, we solved the complex structure of Ran with the nucleotide release factor Mog1 and delineated a novel mitosis-specific acetylation-regulated Ran-Mog1 interaction during chromosome segregation. Our structure-guided functional analyses revealed that Mog1 competes with RCC1 for Ran binding in a GTP/GDP-dependent manner. Biochemical characterization demonstrated that Mog1-bound Ran prevents RCC1 binding and subsequent GTP loading. Surprisingly, Ran is a bona fide substrate of TIP60, and the acetylation of Lys134 by TIP60 liberates Mog1 from Ran binding during mitosis. Importantly, this acetylation-elicited switch of Ran binding to RCC1 promotes high level of Ran-GTP, which is essential for chromosome alignment. These results establish a previously uncharacterized regulatory mechanism in which TIP60 provides a homeostatic control of Ran-GTP level by tuning Ran effector binding for chromosome segregation in mitosis.


    Organizational Affiliation

    Hefei National Laboratory for Physical Sciences at Microscale, and School of Life Sciences, University of Science and Technology of China, Hefei 230027, China.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ran guanine nucleotide release factor
A
194Homo sapiensMutation(s): 0 
Gene Names: RANGRFMOG1RANGNRFHSPC165HSPC236MDS5
Find proteins for Q9HD47 (Homo sapiens)
Go to UniProtKB:  Q9HD47
NIH Common Fund Data Resources
PHAROS  Q9HD47
Protein Feature View
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 5YFG Olderado

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-11-01
    Type: Initial release
  • Version 1.1: 2018-04-11
    Changes: Data collection, Database references