1C39

STRUCTURE OF CATION-DEPENDENT MANNOSE 6-PHOSPHATE RECEPTOR BOUND TO PENTAMANNOSYL PHOSPHATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.210 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis for recognition of phosphorylated high mannose oligosaccharides by the cation-dependent mannose 6-phosphate receptor.

Olson, L.J.Zhang, J.Lee, Y.C.Dahms, N.M.Kim, J.J.

(1999) J.Biol.Chem. 274: 29889-29896


  • PubMed Abstract: 
  • Mannose 6-phosphate receptors (MPRs) play an important role in the targeting of newly synthesized soluble acid hydrolases to the lysosome in higher eukaryotic cells. These acid hydrolases carry mannose 6-phosphate recognition markers on their N-linke ...

    Mannose 6-phosphate receptors (MPRs) play an important role in the targeting of newly synthesized soluble acid hydrolases to the lysosome in higher eukaryotic cells. These acid hydrolases carry mannose 6-phosphate recognition markers on their N-linked oligosaccharides that are recognized by two distinct MPRs: the cation-dependent mannose 6-phosphate receptor and the insulin-like growth factor II/cation-independent mannose 6-phosphate receptor. Although much has been learned about the MPRs, it is unclear how these receptors interact with the highly diverse population of lysosomal enzymes. It is known that the terminal mannose 6-phosphate is essential for receptor binding. However, the results from several studies using synthetic oligosaccharides indicate that the binding site encompasses at least two sugars of the oligosaccharide. We now report the structure of the soluble extracytoplasmic domain of a glycosylation-deficient form of the bovine cation-dependent mannose 6-phosphate receptor complexed to pentamannosyl phosphate. This construct consists of the amino-terminal 154 amino acids (excluding the signal sequence) with glutamine substituted for asparagine at positions 31, 57, 68, and 87. The binding site of the receptor encompasses the phosphate group plus three of the five mannose rings of pentamannosyl phosphate. Receptor specificity for mannose arises from protein contacts with the 2-hydroxyl on the terminal mannose ring adjacent to the phosphate group. Glycosidic linkage preference originates from the minimization of unfavorable interactions between the ligand and receptor.


    Related Citations: 
    • Molecular Basis of Lysosomal Enzyme Recognition:Enzyme Recognition: Three- Dimensional Structure of the Cation-Dependent Mannose 6-Phosphate Receptor
      Roberts, D.L.,Weix, D.J.,Dahms, N.M.,Kim, J.J.
      (1998) Cell 93: 639


    Organizational Affiliation

    Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin 53226, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CATION-DEPENDENT MANNOSE-6-PHOSPHATE RECEPTOR
A, B
152Bos taurusGene Names: M6PR
Find proteins for P11456 (Bos taurus)
Go to Gene View: M6PR
Go to UniProtKB:  P11456
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN

Download SDF File 
Download CCD File 
A, B
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
P3M
Query on P3M

Download SDF File 
Download CCD File 
A, B
1-3 SUGAR RING OF PENTAMANNOSYL 6-PHOSPHATE
C18 H33 O19 P
HDQMHAJOIVYOIP-NAVBLJQLSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.210 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.840α = 90.00
b = 79.310β = 100.33
c = 55.570γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
SCALEPACKdata scaling
DENZOdata reduction
X-PLORrefinement
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-01-14
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance