4XOI

Structure of hsAnillin bound with RhoA(Q63L) at 2.1 Angstroms resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.09 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.173 
  • R-Value Observed: 0.174 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Mechanistic insights into the anchorage of the contractile ring by anillin and mid1

Sun, L.Guan, R.Lee, I.J.Liu, Y.Chen, M.Wang, J.Wu, J.Q.Chen, Z.

(2015) Dev Cell 33: 413-426

  • DOI: https://doi.org/10.1016/j.devcel.2015.03.003
  • Primary Citation of Related Structures:  
    4XH3, 4XOH, 4XOI

  • PubMed Abstract: 

    Anillins and Mid1 are scaffold proteins that play key roles in anchorage of the contractile ring at the cell equator during cytokinesis in animals and fungi, respectively. Here, we report crystal structures and functional analysis of human anillin and S. pombe Mid1. The combined data show anillin contains a cryptic C2 domain and a Rho-binding domain. Together with the tethering PH domain, three membrane-associating elements synergistically bind to RhoA and phospholipids to anchor anillin at the cleavage furrow. Surprisingly, Mid1 also binds to the membrane through a cryptic C2 domain. Dimerization of Mid1 leads to high affinity and preference for PI(4,5)P2, which stably anchors Mid1 at the division plane, bypassing the requirement for Rho GTPase. These findings uncover the unexpected general machinery and the divergent regulatory logics for the anchorage of the contractile ring through the anillin/Mid1 family proteins from yeast to humans.


  • Organizational Affiliation

    MOE Key Laboratory of Protein Science, Tsinghua University, Beijing 100084, China; School of Life Science, Tsinghua University, Beijing 100084, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Transforming protein RhoA
A, C
180Homo sapiensMutation(s): 1 
Gene Names: RHOAARH12ARHARHO12
UniProt & NIH Common Fund Data Resources
Find proteins for P61586 (Homo sapiens)
Explore P61586 
Go to UniProtKB:  P61586
PHAROS:  P61586
GTEx:  ENSG00000067560 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP61586
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Actin-binding protein anillin
B, D
270Homo sapiensMutation(s): 0 
Gene Names: ANLN
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NQW6 (Homo sapiens)
Explore Q9NQW6 
Go to UniProtKB:  Q9NQW6
PHAROS:  Q9NQW6
GTEx:  ENSG00000011426 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NQW6
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.09 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.173 
  • R-Value Observed: 0.174 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.311α = 77.87
b = 52.434β = 74.14
c = 103.101γ = 85.73
Software Package:
Software NamePurpose
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling
SHARPphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of ChinaChina31270762
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesGM086546

Revision History  (Full details and data files)

  • Version 1.0: 2015-07-15
    Type: Initial release
  • Version 1.1: 2017-10-18
    Changes: Author supporting evidence, Derived calculations, Source and taxonomy, Structure summary
  • Version 1.2: 2022-03-23
    Changes: Author supporting evidence, Database references, Derived calculations