1IRJ

Crystal Structure of the MRP14 complexed with CHAPS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.245 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The crystal structure of human MRP14 (S100A9), a Ca(2+)-dependent regulator protein in inflammatory process.

Itou, H.Yao, M.Fujita, I.Watanabe, N.Suzuki, M.Nishihira, J.Tanaka, I.

(2002) J Mol Biol 316: 265-276

  • DOI: 10.1006/jmbi.2001.5340
  • Primary Citation of Related Structures:  
    1IRJ

  • PubMed Abstract: 
  • Human MRP14 (hMRP14) is a Ca(2+)-binding protein from the S100 family of proteins. This protein is co-expressed with human MRP8 (hMRP8), a homologue protein in myeloid cells, and plays an indispensable role in Ca(2+)-dependent functions during inflam ...

    Human MRP14 (hMRP14) is a Ca(2+)-binding protein from the S100 family of proteins. This protein is co-expressed with human MRP8 (hMRP8), a homologue protein in myeloid cells, and plays an indispensable role in Ca(2+)-dependent functions during inflammation. This role includes the activation of Mac-1, the beta(2) integrin which is involved in neutrophil adhesion to endothelial cells. The crystal structure of the holo form of hMRP14 was analyzed at 2.1 A resolution. hMRP14 is distinguished from other S100 member proteins by its long C-terminal region, and its structure shows that the region is extensively flexible. In this crystal structure of hMRP14, Chaps molecules bind to the hinge region that connects two EF-hand motifs, which suggests that this region is a target-binding site of this protein. Based on a structural comparison of hMRP14 with hMRP8 and human S100A12 (hS100A12) that is another homologue protein, the character of MRP8/14 hetero-complex and the functional significance of the flexibility of the C-terminal region of hMRP14 are discussed.


    Organizational Affiliation

    Division of Biological Sciences, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Migration Inhibitory Factor-Related Protein 14A, B, C, D, E, F, G, H113Homo sapiensMutation(s): 0 
Gene Names: S100A9CAGBCFAGMRP14
Find proteins for P06702 (Homo sapiens)
Explore P06702 
Go to UniProtKB:  P06702
NIH Common Fund Data Resources
PHAROS  P06702
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CPS
Query on CPS

Download CCD File 
B, D, G
3-[(3-CHOLAMIDOPROPYL)DIMETHYLAMMONIO]-1-PROPANESULFONATE
C32 H58 N2 O7 S
UMCMPZBLKLEWAF-BCTGSCMUSA-N
 Ligand Interaction
CA
Query on CA

Download CCD File 
A, B, C, D, E, F, G, H
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.274 
  • R-Value Work: 0.245 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 57.59α = 90
b = 178.44β = 113.17
c = 61.23γ = 90
Software Package:
Software NamePurpose
SHELXSphasing
SHARPphasing
CNSrefinement
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-02-27
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance