6R6F

Crystal structure of human carbonic anhydrase isozyme II with 4-chloro-2-cyclohexylsulfanyl-N-(2-hydroxyethyl)-5-sulfamoyl-benzamide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.2 Å
  • R-Value Free: 0.185 
  • R-Value Work: 0.146 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Identification and characterization of a novel chemotype for human TLR8 inhibitors.

Sribar, D.Grabowski, M.Murgueitio, M.S.Bermudez, M.Weindl, G.Wolber, G.

(2019) Eur.J.Med.Chem. 179: 744-752

  • DOI: 10.1016/j.ejmech.2019.06.084

  • PubMed Abstract: 
  • The endosomal Toll-like receptor 8 (TLR8) recognizes single-stranded RNA and initiates early inflammatory responses. Despite the importance of endosomal TLRs for human host defense against microbial pathogens, extensive activation may contribute to a ...

    The endosomal Toll-like receptor 8 (TLR8) recognizes single-stranded RNA and initiates early inflammatory responses. Despite the importance of endosomal TLRs for human host defense against microbial pathogens, extensive activation may contribute to autoimmune and inflammatory diseases. In contrast to the recent progress made in the development of modulators of plasma membrane-bound TLRs, little is known about endosomal TLR modulation and very few TLR8 inhibitors have been reported. In this study, we discovered and validated novel small-molecule TLR8 inhibitors. Fourteen potential TLR8 modulators were experimentally validated in HEK293T cells stably overexpressing human TLR8 and THP-1 macrophages. Five compounds inhibited TLR8-mediated signaling, representing a hit rate of 36%. The three most potent compounds neither cause cellular toxicity nor inhibition of TLR signaling induced by other receptor subtypes. Conclusively, we experimentally confirm novel and selective, pyrimidine-based TLR8 inhibitors with low cytotoxicity that are relevant candidates for lead optimization and further mechanistic studies.


    Organizational Affiliation

    Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195, Berlin, Germany. Electronic address: gerhard.wolber@fu-berlin.de.,Department of Pharmacology, Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195, Berlin, Germany.,Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195, Berlin, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Carbonic anhydrase 2
A
260Homo sapiensMutation(s): 0 
Gene Names: CA2
EC: 4.2.1.1
Find proteins for P00918 (Homo sapiens)
Go to Gene View: CA2
Go to UniProtKB:  P00918
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
EA3
Query on EA3

Download SDF File 
Download CCD File 
A
4-chloranyl-2-cyclohexylsulfanyl-~{N}-(2-hydroxyethyl)-5-sulfamoyl-benzamide
C15 H21 Cl N2 O4 S2
PSEDAEWMXCWYRT-UHFFFAOYSA-N
 Ligand Interaction
DMS
Query on DMS

Download SDF File 
Download CCD File 
A
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.2 Å
  • R-Value Free: 0.185 
  • R-Value Work: 0.146 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 42.308α = 90.00
b = 41.749β = 104.19
c = 72.323γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
PDB_EXTRACTdata extraction
MOLREPphasing
Cootmodel building
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2019-12-18
    Type: Initial release