5I8N

Solution Structure of human calcium-binding S100A9 (C3S) protein


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Blocking the interaction between S100A9 and RAGE V domain using CHAPS molecule: A novel route to drug development against cell proliferation

Chang, C.-C.Khan, I.Tsai, K.-L.Li, H.Yang, L.-W.Chou, R.-H.Yu, C.

(2016) Biochim Biophys Acta 1864: 1558-1569

  • DOI: 10.1016/j.bbapap.2016.08.008
  • Primary Citation of Related Structures:  
    5I8N

  • PubMed Abstract: 
  • Human S100A9 (Calgranulin B) is a Ca(2+)-binding protein, from the S100 family, that often presents as a homodimer in myeloid cells. It becomes an important mediator during inflammation once calcium binds to its EF-hand motifs. Human RAGE protein (re ...

    Human S100A9 (Calgranulin B) is a Ca(2+)-binding protein, from the S100 family, that often presents as a homodimer in myeloid cells. It becomes an important mediator during inflammation once calcium binds to its EF-hand motifs. Human RAGE protein (receptor for advanced glycation end products) is one of the target-proteins. RAGE binds to a hydrophobic surface on S100A9. Interactions between these proteins trigger signal transduction cascades, promoting cell growth, proliferation, and tumorigenesis. Here, we present the solution structure of mutant S100A9 (C3S) homodimer, determined by multi-dimensional NMR experiments. We further characterize the solution interactions between mS100A9 and the RAGE V domain via NMR spectroscopy. CHAPS is a zwitterionic and non-denaturing molecule widely used for protein solubilizing and stabilization. We found out that CHAPS and RAGE V domain would interact with mS100A9 by using (1)H-(15)N HSQC NMR titrations. Therefore, using the HADDOCK program, we superimpose two binary complex models mS100A9-RAGE V domain and mS100A9-CHAPS and demonstrate that CHAPS molecules could play a crucial role in blocking the interaction between mS100A9 and the RAGE V domain. WST-1 assay results also support the conclusion that CHAPS inhibits the bioactivity of mS100A9. This report will help to inform new drug development against cell proliferation.


    Organizational Affiliation

    Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan. Electronic address: cyu.nthu@gmail.com.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein S100-A9AB114Homo sapiensMutation(s): 1 
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
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 
  • OLDERADO: 5I8N Olderado

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data

  • Deposited Date: 2016-02-19 
  • Released Date: 2016-08-31 
  • Deposition Author(s): Chang, C.-C., Chin, Y.

Funding OrganizationLocationGrant Number
Ministry of Science and TechnologyTaiwanMOST 103-2113-M-007 -017 -MY3

Revision History 

  • Version 1.0: 2016-08-31
    Type: Initial release
  • Version 1.1: 2016-09-14
    Changes: Database references