4XOI

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.092 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.173 

wwPDB Validation 3D Report Full Report


This is version 1.1 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: 10.1016/j.devcel.2015.03.003
  • Primary Citation of Related Structures:  

  • 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 an ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transforming protein RhoA
A, C
180Homo sapiensMutation(s): 1 
Gene Names: RHOA (ARH12, ARHA, RHO12)
Find proteins for P61586 (Homo sapiens)
Go to Gene View: RHOA
Go to UniProtKB:  P61586
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Actin-binding protein anillin
B, D
270Homo sapiensMutation(s): 0 
Gene Names: ANLN
Find proteins for Q9NQW6 (Homo sapiens)
Go to Gene View: ANLN
Go to UniProtKB:  Q9NQW6
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GTP
Query on GTP

Download SDF File 
Download CCD File 
A, C
GUANOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O14 P3
XKMLYUALXHKNFT-UUOKFMHZSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, C
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.092 Å
  • R-Value Free: 0.206 
  • R-Value Work: 0.173 
  • 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
HKL-2000data scaling
PHENIXrefinement
HKL-2000data reduction
SHARPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of ChinaChina31270762
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM086546

Revision History 

  • Version 1.0: 2015-07-15
    Type: Initial release
  • Version 1.1: 2017-10-18
    Type: Author supporting evidence, Derived calculations, Source and taxonomy, Structure summary