1UHN

The crystal structure of the calcium binding protein AtCBL2 from Arabidopsis thaliana


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Crystal Structure of the Novel Calcium-binding Protein AtCBL2 from Arabidopsis thaliana

Nagae, M.Nozawa, A.Koizumi, N.Sano, H.Hashimoto, H.Sato, M.Shimizu, T.

(2003) J.Biol.Chem. 278: 42240-42246

  • DOI: 10.1074/jbc.M303630200

  • PubMed Abstract: 
  • Arabidopsis thaliana calcineurin B-like protein (AtCBL2) is a member of a recently identified family of calcineurin B-like calcium-binding proteins in A. thaliana. The crystal structure of AtCBL2 has been determined at 2.1 A resolution. The protein f ...

    Arabidopsis thaliana calcineurin B-like protein (AtCBL2) is a member of a recently identified family of calcineurin B-like calcium-binding proteins in A. thaliana. The crystal structure of AtCBL2 has been determined at 2.1 A resolution. The protein forms a compact alpha-helical structure with two pairs of EF-hand motifs. The structure is similar in overall folding topology to the structures of calcineurin B and neuronal calcium sensor 1, but differs significantly in local conformation. The two calcium ions are coordinated in the first and fourth EF-hand motifs, whereas the second and third EF-hand motifs are maintained in the open form by internal hydrogen bonding without coordination of calcium ions. Both a possible site and a possible mechanism for the target binding to AtCBL2 are discussed based on the three-dimensional structure.


    Organizational Affiliation

    Graduate School of Integrated Science, Yokohama City University, 1-7-29 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
calcineurin B-like protein 2
A
189Arabidopsis thalianaMutation(s): 0 
Gene Names: CBL2 (SCABP1)
Find proteins for Q8LAS7 (Arabidopsis thaliana)
Go to UniProtKB:  Q8LAS7
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.204 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 83.900α = 90.00
b = 118.100β = 90.00
c = 49.100γ = 90.00
Software Package:
Software NamePurpose
SOLVEphasing
CrystalCleardata scaling
Crystaldata collection
CrystalCleardata reduction
Crystaldata reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-11-04
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance