2KI6

The FGF1-S100A13-C2A hetero-hexameric complex structure: A component in the non-classical pathway for FGF1 secretion

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 2000 
  • Conformers Submitted: 18 
  • Selection Criteria: structures with the least restraint violations 

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This is version 1.1 of the entry. See complete history. 


Literature

The heterohexameric complex structure, a component in the non-classical pathway for fibroblast growth factor 1 (FGF1) secretion.

Mohan, S.K., Rani, S.G., Yu, C.

(2010) J Biol Chem 285: 15464-15475

  • DOI: 10.1074/jbc.M109.066357
  • Primary Citation of Related Structures:  
    2KI4, 2KI6

  • PubMed Abstract: 

    • Fibroblast growth factors (FGFs) are key regulators of cell proliferation, tumor-induced angiogenesis, and migration. FGFs are essential for early embryonic development, organ formation, and angiogenesis. FGF1 also plays an important role in inflammation, wound healing, and restenosis ...

    Fibroblast growth factors (FGFs) are key regulators of cell proliferation, tumor-induced angiogenesis, and migration. FGFs are essential for early embryonic development, organ formation, and angiogenesis. FGF1 also plays an important role in inflammation, wound healing, and restenosis. The biological effects of FGF1 are mediated through the activation of the four transmembrane phosphotyrosine kinase fibroblast growth factor receptors in the presence of heparin sulfate proteoglycans and, therefore, require the release of the protein into the extracellular space. FGF1 is exported through a non-classical release pathway involving the formation of a specific multiprotein complex. The protein constituents of this complex include FGF1, S100A13, and the p40 form of synaptotagmin 1 (Syt1). Because FGF1 plays an important role in tumor formation, it is clear that preventing the formation of the multiprotein complex would be an effective strategy to inhibit a wide range of cancers. To understand the molecular events in the FGF1 release pathway, we studied the FGF1-S100A13 tetrameric and FGF1-S100A13-C2A hexameric complex structures, which are both complexes possibly formed during the non-classical pathway of FGF1 release.

    Organizational Affiliation: 

    Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Synaptotagmin-1A, F128Homo sapiensMutation(s): 0 
Gene Names: SYT1, SVP65, SYT
UniProt & NIH Common Fund Data Resources
Find proteins for P21579 (Homo sapiens)
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PHAROS:  P21579
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UniProt GroupP21579
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Heparin-binding growth factor 1B, E133Homo sapiensMutation(s): 0 
Gene Names: FGF1, FGFA
UniProt & NIH Common Fund Data Resources
Find proteins for P05230 (Homo sapiens)
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PHAROS:  P05230
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Protein S100-A13C98Homo sapiensMutation(s): 0 
Gene Names: S100A13
UniProt
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Protein S100-A13D98Homo sapiensMutation(s): 0 
Gene Names: S100A13
UniProt
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Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 2000 
  • Conformers Submitted: 18 
  • Selection Criteria: structures with the least restraint violations 
  • OLDERADO: 2KI6 Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-03-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance