5JPV

Efficient targeting of the asialoglycoprotein receptor by polyvalent display of a compact galactoseamine mimic


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.193 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Efficient Liver Targeting by Polyvalent Display of a Compact Ligand for the Asialoglycoprotein Receptor.

Sanhueza, C.A.Baksh, M.M.Thuma, B.Roy, M.D.Dutta, S.Preville, C.Chrunyk, B.A.Beaumont, K.Dullea, R.Ammirati, M.Liu, S.Gebhard, D.Finley, J.E.Salatto, C.T.King-Ahmad, A.Stock, I.Atkinson, K.Reidich, B.Lin, W.Kumar, R.Tu, M.Menhaji-Klotz, E.Price, D.A.Liras, S.Finn, M.G.Mascitti, V.

(2017) J. Am. Chem. Soc. 139: 3528-3536

  • DOI: 10.1021/jacs.6b12964
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • A compact and stable bicyclic bridged ketal was developed as a ligand for the asialoglycoprotein receptor (ASGPR). This compound showed excellent ligand efficiency, and the molecular details of binding were revealed by the first X-ray crystal structu ...

    A compact and stable bicyclic bridged ketal was developed as a ligand for the asialoglycoprotein receptor (ASGPR). This compound showed excellent ligand efficiency, and the molecular details of binding were revealed by the first X-ray crystal structures of ligand-bound ASGPR. This analogue was used to make potent di- and trivalent binders of ASGPR. Extensive characterization of the function of these compounds showed rapid ASGPR-dependent cellular uptake in vitro and high levels of liver/plasma selectivity in vivo. Assessment of the biodistribution in rodents of a prototypical Alexa647-labeled trivalent conjugate showed selective hepatocyte targeting with no detectable distribution in nonparenchymal cells. This molecule also exhibited increased ASGPR-directed hepatocellular uptake and prolonged retention compared to a similar GalNAc derived trimer conjugate. Selective release in the liver of a passively permeable small-molecule cargo was achieved by retro-Diels-Alder cleavage of an oxanorbornadiene linkage, presumably upon encountering intracellular thiol. Therefore, the multicomponent construct described here represents a highly efficient delivery vehicle to hepatocytes.


    Organizational Affiliation

    School of Chemistry & Biochemistry, Georgia Institute of Technology , 901 Atlantic Avenue, Atlanta, Georgia 30332, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Asialoglycoprotein receptor 1
A, B
145Homo sapiensMutation(s): 0 
Gene Names: ASGR1 (CLEC4H1)
Find proteins for P07306 (Homo sapiens)
Go to Gene View: ASGR1
Go to UniProtKB:  P07306
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

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A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
CA
Query on CA

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Download CCD File 
A, B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
LBT
Query on LBT

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Download CCD File 
A, B
ALPHA-LACTOSE
C12 H22 O11
GUBGYTABKSRVRQ-XLOQQCSPSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.193 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 41.100α = 90.00
b = 59.785β = 93.27
c = 68.818γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
HKL-2000data reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2016-05-04 
  • Released Date: 2017-06-14 
  • Deposition Author(s): Liu, S.

Revision History 

  • Version 1.0: 2017-06-14
    Type: Initial release