7YZH

Schistosoma Mansoni Carbonic Anhydrase in complex with 4-oxo-N-(4-sulfamoylphenethyl)-1,3,4,6,7,11b-hexahydro-2H-pyrazino[2,1-a]isoquinoline-2-carbothioamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.79 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.168 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Development of Praziquantel sulphonamide derivatives as antischistosomal drugs.

Angeli, A.Ferraroni, M.Carta, F.Haberli, C.Keiser, J.Costantino, G.Supuran, C.T.

(2022) J Enzyme Inhib Med Chem 37: 1479-1494

  • DOI: https://doi.org/10.1080/14756366.2022.2078970
  • Primary Citation of Related Structures:  
    7QZX, 7R1X, 7YWT, 7YZH

  • PubMed Abstract: 

    The almost empty armamentarium to treat schistosomiasis, a neglected parasitic disorder caused by trematode flatworms of the genus Schistosoma , except Praziquantel (PZQ), urged to find new alternatives to fight this infection. Carbonic Anhydrase from Schistosoma mansoni (SmCA) is a possible new target against this nematode. Here, we propose new PZQ derivatives bearing a primary sulphonamide group in order to obtain hybrid drugs. All compounds were evaluated for their inhibition profiles on both humans and Schistosoma CAs, X-ray crystal data of SmCA and hCA II in adduct with some inhibitors were obtained allowing the understanding of the main structural factors responsible of activity. The compounds showed in vitro inhibition of immature and adult S. mansoni , but further optimisation is required for improved activity.


  • Organizational Affiliation

    Dipartimento di Chimica "Ugo Schiff", University of Florence, Florence, Italy.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Carbonic anhydraseA [auth AAA],
B [auth BBB]
323Schistosoma mansoniMutation(s): 0 
EC: 4.2.1.1
UniProt
Find proteins for A0A3Q0KSG2 (Schistosoma mansoni)
Explore A0A3Q0KSG2 
Go to UniProtKB:  A0A3Q0KSG2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A3Q0KSG2
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
HFF (Subject of Investigation/LOI)
Query on HFF

Download Ideal Coordinates CCD File 
F [auth AAA],
L [auth BBB]
4-oxo-N-(4-sulfamoylphenethyl)-1,3,4,6,7,11b-hexahydro-2H-pyrazino[2,1-a]isoquinoline-2-carbothioamide
C21 H24 N4 O3 S2
WAXCPJVEJJWBNS-IBGZPJMESA-N
NAG (Subject of Investigation/LOI)
Query on NAG

Download Ideal Coordinates CCD File 
D [auth AAA],
E [auth AAA],
H [auth BBB],
I [auth BBB],
J [auth BBB]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
GOL
Query on GOL

Download Ideal Coordinates CCD File 
G [auth BBB]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
ZN
Query on ZN

Download Ideal Coordinates CCD File 
C [auth AAA],
K [auth BBB]
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.79 Å
  • R-Value Free: 0.198 
  • R-Value Work: 0.168 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 103.83α = 90
b = 103.83β = 90
c = 133.06γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XSCALEdata scaling
REFMACphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Not funded--

Revision History  (Full details and data files)

  • Version 1.0: 2023-03-01
    Type: Initial release
  • Version 1.1: 2023-09-06
    Changes: Data collection, Database references
  • Version 1.2: 2024-02-07
    Changes: Refinement description