Biological Assembly 1  

 3D View: Structure | Electron Density

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 46.70 kDa 
• Atom Count: 3308 
• Residue Count: 414 
• Unique protein chains: 2

2C0L

TPR DOMAIN OF HUMAN PEX5P IN COMPLEX WITH HUMAN MSCP2

• DOI: 10.2210/pdb2C0L/pdb

• Classification: TRANSPORT PROTEIN/RECEPTOR
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2005-09-05 Released: 2006-11-15 
• Deposition Author(s): Stanley, W.A., Kursula, P., Wilmanns, M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.256 
• R-Value Work: 0.202 
• R-Value Observed: 0.205 

Literature

Recognition of a Functional Peroxisome Type 1 Target by the Dynamic Import Receptor Pex5P.

Stanley, W.A., Filipp, F.V., Kursula, P., Schuller, N., Erdmann, R., Schliebs, W., Sattler, M., Wilmanns, M.

(2006) Mol Cell 24: 653

• PubMed: 17157249 
• DOI: 10.1016/j.molcel.2006.10.024
• Primary Citation of Related Structures:  
  2C0M, 2C0L


• PubMed Abstract: 
  

Peroxisomes require the translocation of folded and functional target proteins of various sizes across the peroxisomal membrane. We have investigated the structure and function of the principal import receptor Pex5p, which recognizes targets bearing a C-terminal peroxisomal targeting signal type 1. Crystal structures of the receptor in the presence and absence of a peroxisomal target, sterol carrier protein 2, reveal major structural changes from an open, snail-like conformation into a closed, circular conformation. These changes are caused by a long loop C terminal to the 7-fold tetratricopeptide repeat segments. Mutations in residues of this loop lead to defects in peroxisomal import in human fibroblasts. The structure of the receptor/cargo complex demonstrates that the primary receptor-binding site of the cargo is structurally and topologically autonomous, enabling the cargo to retain its native structure and function.

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Organizational Affiliation: 

European Molecular Biology Laboratory-Hamburg Outstation, Notkestrasse 85, 22603 Hamburg. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PEROXISOMAL TARGETING SIGNAL 1 RECEPTOR	A	305	Homo sapiens	Mutation(s): 0  Gene Names: PEX5, PXR1
Find proteins for P50542 (Homo sapiens) Explore P50542  Go to UniProtKB:  P50542
NIH Common Fund Data Resources
PHAROS:  P50542 GTEx:  ENSG00000139197

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
NONSPECIFIC LIPID-TRANSFER PROTEIN	B	122	Homo sapiens	Mutation(s): 0  Gene Names: SCP2 EC: 2.3.1.176
Find proteins for P22307 (Homo sapiens) Explore P22307  Go to UniProtKB:  P22307
NIH Common Fund Data Resources
PHAROS:  P22307 GTEx:  ENSG00000116171

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.256 
• R-Value Work: 0.202 
• R-Value Observed: 0.205 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 40.48	α = 90
b = 68.62	β = 90
c = 137.39	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
XDS	data scaling
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2005-09-05 
• Released Date: 2006-11-15 
Deposition Author(s): Stanley, W.A., Kursula, P., Wilmanns, M.

Revision History 

• Version 1.0: 2006-11-15
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2019-07-24
  Changes: Data collection