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[[Image:1fbr.png|left|200px|thumb|Crystal Structure of Fibronectin 4-5FnI<sub>4-5</sub> fragment [[1fbr]]]]
[[Image:1fbr.png|left|200px|thumb|Crystal Structure of Fibronectin FnI <sub>4-5</sub> fragment [[1fbr]]]]
<StructureSection load='3m7p' size='350' side='right' scene='' caption='Human glycosylated fibronectin gelatin-binding domain complex with PEG400, dodecaethylene glycol and Zn+2 ions (grey) (PDB code [[3m7p]]) '>
<StructureSection load='3m7p' size='350' side='right' scene='' caption='Human glycosylated fibronectin gelatin-binding domain complex with PEG400, dodecaethylene glycol and Zn+2 ions (grey) (PDB code [[3m7p]]) '>
Revision as of 14:06, 22 January 2016
File:1fbr.png Crystal Structure of Fibronectin FnI4-5 fragment 1fbr
Function
Fibronectin (Fn) is a glycoprotein which binds extracellular matrix components like integrin, collagen, fibrin and others. It is a component of cell adhesion[ 1] .
Relevance
Fn is associated with wound healing. Fn is a potential marker for radiation resistance.
Disease
Overexpression of Fn1 is associated with lung cancer.
Structural insights
Fn is a dimer of homologous monomers linked by S-S bond. Each monomer contains 3 types of modules: FnI, FnII and FnIII. Each module contains several numbered protein binding domains, i.e., FnI6 -FnII1-2 -FnI7-9 is the gelatin binding domain (GBD).
↑ Pankov R, Yamada KM. Fibronectin at a glance. J Cell Sci. 2002 Oct 15;115(Pt 20):3861-3. PMID:12244123
3D Structures of Fibronectin
Updated on 22-January-2016
{"openlevels":0}
Fn module FnI
3m7p – hFn GBD – human
1e8b , 1e88 , 1qo6 - hFn GBD – NMR
3gxe , 3ejh – hFn 8-9FnI+collagen alpha-1
1fbr - hFn 4-5FnI - NMR
2rky , 2rl0 – hFn 4-5FnI+Fn binding peptide
2rkz , 3cal , 3zrz - hFn 2-3FnI+Fn binding peptide
2cg6 , 2cg7 - hFn 2-3FnI
2cku - hFn 2-3FnI – NMR
1o9a - hFn 1-2FnI+B3 from FNBB – NMR
2ec3 – hFn 11FnI – NMR
3r8q – hFn 12-14FnI
1qgb – hFn FnI N-terminal - NMR
2ck2 – hFn (mutant) core swapped
1j8k – hFn extra domain 2 – NMR
1fnh – hFn heparin and integrin binding domains
2qbw , 3ch8 – hFn-PDZ fusion
4gh7 – hFn residues 1173-1448 + Neutrophil gelatinase-associated lipocalin
Fn module FnII
Fn module FnIII
1q38 , 1x3d , 1x4x , 1x5x - hFn FnIII – NMR
2h41 , 2h45 – hFn 2FnIII – NMR
1oww - hFn 1FnIII – NMR
2ha1 - hFn 1-2FnIII – NMR
2crm - hFn 4FnIII – NMR
2crz - hFn 5FnIII – NMR
1fna , 1ttf , 1ttg – hFn 10FnIII
4mmx - hFn 10FnIII + integrin α V + integrin β 3
4mmy , 4mmz - hFn 10FnIII (mutant) + integrin α V + integrin β 3
2ocf - hFn 10FnIII+estrogen receptor ligand-binding domain
1fnf – hFn 7-10FnIII
2fnb – hFn FnIII ed-b domain – NMR
1mfn , 2mfn – Fn 9-10FnIII – mouse - NMR
2vmg , 2vmi - Fn FnIII carbohydrate-binding domain – Clostridium perfringens
Fn module FnI+FnII
3mql – hFn 6FnI+2FnII+7FnI
References
proteopedia link