4W9Y

X-ray structure of human glutamate carboxypeptidase II (GCPII) in complex with a glutamyl sulfamide inhibitor CJC47


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.64 Å
  • R-Value Free: 0.177 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.160 

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Ligand Structure Quality Assessment 


This is version 2.1 of the entry. See complete history


Literature

Structural, Biochemical, and Computational Characterization of Sulfamides as Bimetallic Peptidase Inhibitors.

Novakova, Z.Tehrani, Z.A.Jurok, R.Motlova, L.Kutil, Z.Pavlicek, J.Shukla, S.Choy, C.J.Havlinova, B.Baranova, P.Berkman, C.E.Kuchar, M.Cerny, J.Barinka, C.

(2024) J Chem Inf Model 

  • DOI: https://doi.org/10.1021/acs.jcim.3c01542
  • Primary Citation of Related Structures:  
    4W9Y, 6SGP, 6SKH

  • PubMed Abstract: 

    The sulfonamide function is used extensively as a general building block in various inhibitory scaffolds and, more specifically, as a zinc-binding group (ZBG) of metalloenzyme inhibitors. Here, we provide biochemical, structural, and computational characterization of a metallopeptidase in complex with inhibitors, where the mono- and bisubstituted sulfamide functions are designed to directly engage zinc ions of a bimetallic enzyme site. Structural data showed that while monosubstituted sulfamides coordinate active-site zinc ions via the free negatively charged amino group in a canonical manner, their bisubstituted counterparts adopt an atypical binding pattern divergent from expected positioning of corresponding tetrahedral reaction intermediates. Accompanying quantum mechanics calculations revealed that electroneutrality of the sulfamide function is a major factor contributing to the markedly lower potency of bisubstituted compounds by considerably lowering their interaction energy with the enzyme. Overall, while bisubstituted uncharged sulfamide functions can bolster favorable pharmacological properties of a given inhibitor, their use as ZBGs in metalloenzyme inhibitors might be less advantageous due to their suboptimal metal-ligand properties.


  • Organizational Affiliation

    Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Glutamate carboxypeptidase 2707Homo sapiensMutation(s): 0 
Gene Names: FOLH1FOLHNAALAD1PSMPSMAGIG27
EC: 3.4.17.21
UniProt & NIH Common Fund Data Resources
Find proteins for Q04609 (Homo sapiens)
Explore Q04609 
Go to UniProtKB:  Q04609
PHAROS:  Q04609
GTEx:  ENSG00000086205 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ04609
Glycosylation
Glycosylation Sites: 7Go to GlyGen: Q04609-1
Sequence Annotations
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChains Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
B, C, D
2N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Entity ID: 3
MoleculeChains Length2D Diagram Glycosylation3D Interactions
alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose
E
4N-Glycosylation
Glycosylation Resources
GlyTouCan:  G81315DD
GlyCosmos:  G81315DD
GlyGen:  G81315DD
Small Molecules
Ligands 5 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
3K0
Query on 3K0

Download Ideal Coordinates CCD File 
M [auth A]N-sulfamoyl-L-glutamic acid
C5 H10 N2 O6 S
ZYYFXKZXQCQRTJ-VKHMYHEASA-N
NAG
Query on NAG

Download Ideal Coordinates CCD File 
F [auth A],
G [auth A],
H [auth A]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
ZN
Query on ZN

Download Ideal Coordinates CCD File 
I [auth A],
J [auth A]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
CA
Query on CA

Download Ideal Coordinates CCD File 
K [auth A]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
CL
Query on CL

Download Ideal Coordinates CCD File 
L [auth A]CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.64 Å
  • R-Value Free: 0.177 
  • R-Value Work: 0.159 
  • R-Value Observed: 0.160 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 101.189α = 90
b = 130.425β = 90
c = 158.452γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
the Helmholtz-ZentrumGermanyNo 283570

Revision History  (Full details and data files)

  • Version 1.0: 2015-09-23
    Type: Initial release
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary
  • Version 2.1: 2024-01-31
    Changes: Data collection, Database references, Derived calculations, Structure summary