5LPU

Crystal structure of Annexin A2 complexed with S100A4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Regulation of the Equilibrium between Closed and Open Conformations of Annexin A2 by N-Terminal Phosphorylation and S100A4-Binding.

Ecsedi, P.Kiss, B.Gogl, G.Radnai, L.Buday, L.Koprivanacz, K.Liliom, K.Leveles, I.Vertessy, B.Jeszenoi, N.Hetenyi, C.Schlosser, G.Katona, G.Nyitray, L.

(2017) Structure 25: 1195-1207.e5

  • DOI: 10.1016/j.str.2017.06.001
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Annexin A2 (ANXA2) has a versatile role in membrane-associated functions including membrane aggregation, endo- and exocytosis, and it is regulated by post-translational modifications and protein-protein interactions through the unstructured N-termina ...

    Annexin A2 (ANXA2) has a versatile role in membrane-associated functions including membrane aggregation, endo- and exocytosis, and it is regulated by post-translational modifications and protein-protein interactions through the unstructured N-terminal domain (NTD). Our sequence analysis revealed a short motif responsible for clamping the NTD to the C-terminal core domain (CTD). Structural studies indicated that the flexibility of the NTD and CTD are interrelated and oppositely regulated by Tyr24 phosphorylation and Ser26Glu phosphomimicking mutation. The crystal structure of the ANXA2-S100A4 complex showed that asymmetric binding of S100A4 induces dislocation of the NTD from the CTD and, similar to the Ser26Glu mutation, unmasks the concave side of ANXA2. In contrast, pTyr24 anchors the NTD to the CTD and hampers the membrane-bridging function. This inhibition can be restored by S100A4 and S100A10 binding. Based on our results we provide a structural model for regulation of ANXA2-mediated membrane aggregation by NTD phosphorylation and S100 binding.


    Organizational Affiliation

    Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg 40530, Sweden.,Department of Biochemistry, ELTE Eötvös Loránd University, 1117 Budapest, Hungary. Electronic address: nyitray@elte.hu.,MTA-ELTE Research Group of Peptide Chemistry, ELTE Eötvös Loránd University, 1117 Budapest, Hungary.,Department of Genetics, ELTE Eötvös Loránd University, 1117 Budapest, Hungary; Institute of Physiology, University of Pécs, 7625 Pécs, Hungary.,Department of Pharmacology and Pharmacotherapy, University of Pécs, 7624 Pécs, Hungary.,Institute of Enzymology, Hungarian Academy of Sciences, 1117 Budapest, Hungary; Department of Applied Biotechnology, Budapest University of Technology and Economics, 1117 Budapest, Hungary.,Institute of Enzymology, Hungarian Academy of Sciences, 1117 Budapest, Hungary.,Department of Biochemistry, ELTE Eötvös Loránd University, 1117 Budapest, Hungary.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Annexin A2
A, B
339Homo sapiensMutation(s): 1 
Gene Names: ANXA2 (ANX2, ANX2L4, CAL1H, LPC2D)
Find proteins for P07355 (Homo sapiens)
Go to Gene View: ANXA2
Go to UniProtKB:  P07355
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Protein S100-A4
C, D
104Homo sapiensMutation(s): 0 
Gene Names: S100A4 (CAPL, MTS1)
Find proteins for P26447 (Homo sapiens)
Go to Gene View: S100A4
Go to UniProtKB:  P26447
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download SDF File 
Download CCD File 
A, B, C, D
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
ACE
Query on ACE
A, B
NON-POLYMERC2 H4 O

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.207 
  • R-Value Work: 0.181 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 71.740α = 90.00
b = 61.240β = 88.69
c = 148.160γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
XSCALEdata scaling
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-07-05
    Type: Initial release
  • Version 1.1: 2017-07-12
    Type: Database references
  • Version 1.2: 2017-08-09
    Type: Database references