2ZOC

Crystal structure of recombinant human annexin IV

• PDB DOI: https://doi.org/10.2210/pdb2ZOC/pdb

• Classification: METAL BINDING PROTEIN, LIPID BINDING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  OPM


• Deposited: 2008-05-08 Released: 2009-04-28 
• Deposition Author(s): Konno, M., Kaneko-Kanzaki, Y., Fushinobu-Okushi, N., Mochizuki, K., Uchikaw, E., Satoh, A., Aikawa, K.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.258 
• R-Value Work: 0.216 
• R-Value Observed: 0.220 

Starting Model: experimental

Literature

The comparison of the loop structure of membrane binding sites between human and bovine annexin IV

Konno, M., Kaneko-Kanzaki, Y., Fushinobu-Okushi, N., Mochizuki, K., Uchikawa, E., Satoh, A., Aikawa, K.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 72.18 kDa 
• Atom Count: 5,247 
• Modelled Residue Count: 637 
• Deposited Residue Count: 638 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Annexin A4	A, B	319	Homo sapiens	Mutation(s): 0  Membrane Entity: Yes
UniProt & NIH Common Fund Data Resources
Find proteins for P09525 (Homo sapiens) Explore P09525  Go to UniProtKB:  P09525
PHAROS:  P09525 GTEx:  ENSG00000196975

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CA	C [auth A], D [auth A], E [auth A], F [auth A], G [auth B], H [auth B], I [auth B], J [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.258 
• R-Value Work: 0.216 
• R-Value Observed: 0.220 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 44.223	α = 90
b = 55.132	β = 91.45
c = 127.147	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
X-PLOR	model building
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-04-28 
Deposition Author(s): Konno, M., Kaneko-Kanzaki, Y., Fushinobu-Okushi, N., Mochizuki, K., Uchikaw, E., Satoh, A., Aikawa, K.

Revision History  

• Version 1.0: 2009-04-28
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-11-01
  Changes: Data collection, Database references, Derived calculations, Refinement description