2RL7

Crystal Structure cation-dependent mannose 6-phosphate receptor at pH 4.8

• PDB DOI: https://doi.org/10.2210/pdb2RL7/pdb

• Classification: Protein transport, sugar binding protein
• Organism(s): Bos taurus
• Expression System: Trichoplusia ni
• Mutation(s): Yes 


• Deposited: 2007-10-18 Released: 2008-02-12 
• Deposition Author(s): Olson, L.J., Hindsgaul, O., Kim, J.-J.P., Dahms, N.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.257 
• R-Value Work: 0.211 

Literature

Structural Insights into the Mechanism of pH-dependent Ligand Binding and Release by the Cation-dependent Mannose 6-Phosphate Receptor.

Olson, L.J., Hindsgaul, O., Dahms, N.M., Kim, J.J.

(2008) J Biol Chem 283: 10124-10134

• PubMed: 18272523 
• DOI: https://doi.org/10.1074/jbc.M708994200
• Primary Citation of Related Structures:  
  2RL7, 2RL8, 2RL9, 2RLB, 3CY4


• PubMed Abstract: 
  

  The cation-dependent mannose 6-phosphate receptor (CD-MPR) is a key component of the lysosomal enzyme targeting system that binds newly synthesized mannose 6-phosphate (Man-6-P)-containing acid hydrolases and transports them to endosomal compartments. The interaction between the MPRs and its ligands is pH-dependent; the homodimeric CD-MPR binds lysosomal enzymes optimally in the pH environment of the trans Golgi network (pH approximately 6.5) and releases its cargo in acidic endosomal compartments (

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Organizational Affiliation: 

Department of Biochemistry, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

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

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 72.09 kDa 
• Atom Count: 5,329 
• Modelled Residue Count: 594 
• Deposited Residue Count: 616 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Cation-dependent mannose-6-phosphate receptor	A, B, C, D	154	Bos taurus	Mutation(s): 4  Gene Names: M6PR
UniProt
Find proteins for P11456 (Bos taurus) Explore P11456  Go to UniProtKB:  P11456

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	E, F, G, H	2		N/A
Glycosylation Resources
GlyTouCan:  G42666HT GlyCosmos:  G42666HT GlyGen:  G42666HT

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CAC	L [auth B]	CACODYLATE ION C2 H6 As O2 OGGXGZAMXPVRFZ-UHFFFAOYSA-M
GOL	I [auth A], O [auth C]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
ACT	J [auth B], K [auth B], M [auth C], N [auth C], P [auth D]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.00 Å
• R-Value Free: 0.257 
• R-Value Work: 0.211 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.84	α = 90
b = 123.028	β = 92.46
c = 53.092	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
CNS	refinement
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-02-12 
Deposition Author(s): Olson, L.J., Hindsgaul, O., Kim, J.-J.P., Dahms, N.M.

Revision History  

• Version 1.0: 2008-02-12
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.2: 2017-10-25
  Changes: Advisory, Refinement description
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2021-10-20
  Changes: Database references, Structure summary