View source for 2w84


==Structure of Pex14 in complex with Pex5==
<StructureSection load='2w84' size='340' side='right'caption='[[2w84]], [[NMR_Ensembles_of_Models | 10 NMR models]]' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2w84]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2W84 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2W84 FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2c0m|2c0m]], [[1fch|1fch]], [[2j9q|2j9q]], [[2c0l|2c0l]], [[2w85|2w85]]</div></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2w84 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2w84 OCA], [https://pdbe.org/2w84 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2w84 RCSB], [https://www.ebi.ac.uk/pdbsum/2w84 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2w84 ProSAT]</span></td></tr>
</table>
== Disease ==
[[https://www.uniprot.org/uniprot/PEX5_HUMAN PEX5_HUMAN]] Defects in PEX5 are the cause of peroxisome biogenesis disorder 2A (PBD2A) [MIM:[https://omim.org/entry/214110 214110]]. A fatal peroxisome biogenesis disorder belonging to the Zellweger disease spectrum and characterized clinically by severe neurologic dysfunction with profound psychomotor retardation, severe hypotonia and neonatal seizures, craniofacial abnormalities, liver dysfunction, and biochemically by the absence of peroxisomes. Additional features include cardiovascular and skeletal defects, renal cysts, ocular abnormalities, and hearing impairment. Most severely affected individuals with the classic form of the disease (classic Zellweger syndrome) die within the first year of life.<ref>PMID:7719337</ref>   Defects in PEX5 are the cause of peroxisome biogenesis disorder 2B (PBD2B) [MIM:[https://omim.org/entry/202370 202370]]. A peroxisome biogenesis disorder that includes neonatal adrenoleukodystrophy (NALD) and infantile Refsum disease (IRD), two milder manifestations of the Zellweger disease spectrum. The clinical course of patients with the NALD and IRD presentation is variable and may include developmental delay, hypotonia, liver dysfunction, sensorineural hearing loss, retinal dystrophy and vision impairment. Children with the NALD presentation may reach their teens, while patients with the IRD presentation may reach adulthood. The clinical conditions are often slowly progressive in particular with respect to loss of hearing and vision. The biochemical abnormalities include accumulation of phytanic acid, very long chain fatty acids (VLCFA), di- and trihydroxycholestanoic acid and pipecolic acid. 
== Function ==
[[https://www.uniprot.org/uniprot/PEX5_HUMAN PEX5_HUMAN]] Binds to the C-terminal PTS1-type tripeptide peroxisomal targeting signal (SKL-type) and plays an essential role in peroxisomal protein import.<ref>PMID:7719337</ref> <ref>PMID:7790377</ref> <ref>PMID:7706321</ref>  
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/w8/2w84_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=2w84 ConSurf].
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== Publication Abstract from PubMed ==
Protein import into peroxisomes depends on a complex and dynamic network of protein-protein interactions. Pex14 is a central component of the peroxisomal import machinery and binds the soluble receptors Pex5 and Pex19, which have important function in the assembly of peroxisome matrix and membrane, respectively. We show that the N-terminal domain of Pex14, Pex14(N), adopts a three-helical fold. Pex5 and Pex19 ligand helices bind competitively to the same surface in Pex14(N) albeit with opposite directionality. The molecular recognition involves conserved aromatic side chains in the Pex5 WxxxF/Y motif and a newly identified F/YFxxxF sequence in Pex19. The Pex14-Pex5 complex structure reveals molecular details for a critical interaction in docking Pex5 to the peroxisomal membrane. We show that mutations of Pex14 residues located in the Pex5/Pex19 binding region disrupt Pex5 and/or Pex19 binding in vitro. The corresponding full-length Pex14 variants are impaired in peroxisomal membrane localisation in vivo, showing that the molecular interactions mediated by the N-terminal domain modulate peroxisomal targeting of Pex14.

Structural basis for competitive interactions of Pex14 with the import receptors Pex5 and Pex19.,Neufeld C, Filipp FV, Simon B, Neuhaus A, Schuller N, David C, Kooshapur H, Madl T, Erdmann R, Schliebs W, Wilmanns M, Sattler M EMBO J. 2009 Mar 18;28(6):745-54. Epub 2009 Feb 5. PMID:19197237<ref>PMID:19197237</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 2w84" style="background-color:#fffaf0;"></div>
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Human]]
[[Category: Large Structures]]
[[Category: David, C]]
[[Category: Erdmann, R]]
[[Category: Filipp, F V]]
[[Category: Kooshapur, H]]
[[Category: Madl, T]]
[[Category: Neufeld, C]]
[[Category: Neuhaus, A]]
[[Category: Sattler, M]]
[[Category: Schliebs, W]]
[[Category: Schueller, N]]
[[Category: Simon, B]]
[[Category: Wilmanns, M]]
[[Category: Alternative splicing]]
[[Category: Disease mutation]]
[[Category: Peroxisome]]
[[Category: Peroxisome biogenesis disorder]]
[[Category: Peroxisome import]]
[[Category: Peroxisome targeting signal]]
[[Category: Phosphoprotein]]
[[Category: Polymorphism]]
[[Category: Protein complex]]
[[Category: Protein transport]]
[[Category: Pt]]
[[Category: Receptor-cargo complex]]
[[Category: Tpr repeat]]
[[Category: Translocation]]
[[Category: Zellweger syndrome]]