5LNF

Solution NMR structure of farnesylated PEX19, C-terminal domain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Allosteric modulation of peroxisomal membrane protein recognition by farnesylation of the peroxisomal import receptor PEX19.

Emmanouilidis, L.Schutz, U.Tripsianes, K.Madl, T.Radke, J.Rucktaschel, R.Wilmanns, M.Schliebs, W.Erdmann, R.Sattler, M.

(2017) Nat Commun 8: 14635-14635

  • DOI: 10.1038/ncomms14635

  • PubMed Abstract: 
  • The transport of peroxisomal membrane proteins (PMPs) requires the soluble PEX19 protein as chaperone and import receptor. Recognition of cargo PMPs by the C-terminal domain (CTD) of PEX19 is required for peroxisome biogenesis in vivo. Farnesylation ...

    The transport of peroxisomal membrane proteins (PMPs) requires the soluble PEX19 protein as chaperone and import receptor. Recognition of cargo PMPs by the C-terminal domain (CTD) of PEX19 is required for peroxisome biogenesis in vivo. Farnesylation at a C-terminal CaaX motif in PEX19 enhances the PMP interaction, but the underlying molecular mechanisms are unknown. Here, we report the NMR-derived structure of the farnesylated human PEX19 CTD, which reveals that the farnesyl moiety is buried in an internal hydrophobic cavity. This induces substantial conformational changes that allosterically reshape the PEX19 surface to form two hydrophobic pockets for the recognition of conserved aromatic/aliphatic side chains in PMPs. Mutations of PEX19 residues that either mediate farnesyl contacts or are directly involved in PMP recognition abolish cargo binding and cannot complement a ΔPEX19 phenotype in human Zellweger patient fibroblasts. Our results demonstrate an allosteric mechanism for the modulation of protein function by farnesylation.


    Organizational Affiliation

    Munich Center for Integrated Protein Science at Chair of Biomolecular NMR, Department Chemie, Technische Universität München, Lichtenbergstr. 4, Garching 85747, Germany.,Institute of Molecular Biology and Biochemisty, Medical University of Graz, Graz 8010, Austria.,EMBL Hamburg, Notkestr. 85, Geb. 25A, 22607 Hamburg, Germany.,Institute of Structural Biology, Helmholtz Zentrum München, Ingolstädter Landstr. 1, Neuherberg 85764, Germany.,CEITEC-Central European Institute of Technology, Masaryk University, Kamenice 5, Brno 62500, Czech Republic.,Institute of Biochemistry and Pathobiochemistry, Department of Systems Biology, Faculty of Medicine, Ruhr University Bochum, Bochum 44780, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Peroxisomal biogenesis factor 19
A
139Homo sapiensMutation(s): 0 
Gene Names: PEX19 (HK33, PXF)
Find proteins for P40855 (Homo sapiens)
Go to Gene View: PEX19
Go to UniProtKB:  P40855
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FAR
Query on FAR

Download SDF File 
Download CCD File 
A
FARNESYL
C15 H26
JXBSHSBNOVLGHF-BUJBXKITSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-03-15
    Type: Initial release
  • Version 1.1: 2017-03-22
    Type: Database references
  • Version 1.2: 2019-09-11
    Type: Data collection