1AOW | pdb_00001aow

ANNEXIN IV

• PDB DOI: https://doi.org/10.2210/pdb1AOW/pdb

• Classification: CALCIUM/PHOSPHOLIPID-BINDING PROTEIN
• Organism(s): Bos taurus
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 1997-07-11 Released: 1998-01-14 
• Deposition Author(s): Zanotti, G., Malpeli, G., Gliubich, F., Folli, C., Stoppini, M., Olivi, L., Savoia, A., Berni, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 
  0.269 (Depositor) 
• R-Value Work: 
  0.190 (Depositor), 0.206 (DCC) 
• R-Value Observed: 
  0.190 (Depositor) 

Starting Model: experimental

Literature

Structure of the trigonal crystal form of bovine annexin IV.

Zanotti, G., Malpeli, G., Gliubich, F., Folli, C., Stoppini, M., Olivi, L., Savoia, A., Berni, R.

(1998) Biochem J 329: 101-106

• PubMed: 9405281 
• DOI: https://doi.org/10.1042/bj3290101
• Primary Citation Related Structures: 
  1AOW


• PubMed Abstract: 
  

  The structure of a trigonal crystal form of N-terminally truncated [des-(1-9)] bovine annexin IV, an annexin variant that exhibits the distinctive property of binding both phospholipids and carbohydrates in a Ca2+-dependent manner, has been determined at 3 A (0.3 nm) resolution -space group: R3; cell parameters: a=b=118.560 (8) A and c=82.233 (6) A-. The overall structure of annexin IV, crystallized in the absence of Ca2+ ions, is highly homologous to that of the other known members of the annexin family. The trimeric assembly in the trigonal crystals of annexin IV is quite similar to that found previously in non-isomorphous crystals of human, chicken and rat annexin V and to the subunit arrangement in half of the hexamer of hydra annexin XII. Moreover, it resembles that found in two-dimensional crystals of human annexin V bound to phospholipid monolayers. The propensity of several annexins to generate similar trimeric arrays supports the hypothesis that trimeric complexes of such annexins, including annexin IV, may represent the functional units that interact with membranes.

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Organizational Affiliation: 
• Department of Organic Chemistry, University of Padova, and Biopolymer Research Center, C.N.R., 35131 Padova, Italy.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 35.01 kDa 
• Atom Count: 2,448 
• Modeled Residue Count: 309 
• Deposited Residue Count: 309 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ANNEXIN IV	A	309	Bos taurus	Mutation(s): 0  Membrane Entity: Yes
UniProt
Find proteins for P13214 (Bos taurus) Explore P13214  Go to UniProtKB:  P13214

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free:  0.269 (Depositor) 
• R-Value Work:  0.190 (Depositor), 0.206 (DCC) 
• R-Value Observed: 0.190 (Depositor) 

Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 118.56	α = 90
b = 118.56	β = 90
c = 82.233	γ = 120

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	refinement
XDS	data reduction
MARSCALE	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-01-14 
Deposition Author(s): Zanotti, G., Malpeli, G., Gliubich, F., Folli, C., Stoppini, M., Olivi, L., Savoia, A., Berni, R.

Revision History  

• Version 1.0: 1998-01-14
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2023-08-02
  Changes: Database references, Other, Refinement description
• Version 1.4: 2024-05-22
  Changes: Data collection