Human FKBP12 in complex with (1S,5S,6R)-10-((S)-(3,5-dichlorophenyl)sulfonimidoyl)-3-(pyridin-2-ylmethyl)-5-vinyl-3,10-diazabicyclo[4.3.1]decan-2-one

Experimental Data Snapshot

  • Resolution: 1.55 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.197 

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Deconstructing Protein Binding of Sulfonamides and Sulfonamide Analogues.

Purder, P.L.Meyners, C.Sugiarto, W.O.Kolos, J.Lohr, F.Gebel, J.Nehls, T.Dotsch, V.Lermyte, F.Hausch, F.

(2023) JACS Au 3: 2478-2486

  • DOI: https://doi.org/10.1021/jacsau.3c00241
  • Primary Citation of Related Structures:  
    8CHI, 8CHJ, 8CHK, 8CHL, 8CHM, 8CHN, 8CHP, 8CHQ, 8CHR

  • PubMed Abstract: 

    Sulfonamides are one of the most important pharmacophores in medicinal chemistry, and sulfonamide analogues have gained substantial interest in recent years. However, the protein interactions of sulfonamides and especially of their analogues are underexplored. Using FKBP12 as a model system, we describe the synthesis of optically pure sulfenamide, sulfinamide, and sulfonimidamide analogues of a well characterized sulfonamide ligand. This allowed us to precisely determine the binding contributions of each sulfonamide oxygen atom and the consequences of nitrogen replacements. We also present high-resolution cocrystal structures of sulfonamide analogues buried in the pocket of a protein target. This revealed intimate contacts with the protein including an unprecedented hydrogen bond acceptor of sulfonimidamides. The use of sulfonamide analogues enabled new exit vectors that allowed remodeling of a subpocket in FKBP12. Our results illuminate the protein interaction potential of sulfonamides/sulfonamide analogues and will aid in their rational design.

  • Organizational Affiliation

    Department of Organic Chemistry and Biochemistry, Clemens-Schöpf-Institute, Technical University Darmstadt, Alarich-Weiss-Straße 4, 64287 Darmstadt, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Peptidyl-prolyl cis-trans isomerase FKBP1A
A, B, C
107Homo sapiensMutation(s): 1 
UniProt & NIH Common Fund Data Resources
Find proteins for P62942 (Homo sapiens)
Explore P62942 
Go to UniProtKB:  P62942
PHAROS:  P62942
GTEx:  ENSG00000088832 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP62942
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.55 Å
  • R-Value Free: 0.233 
  • R-Value Work: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.874α = 90
b = 53.416β = 90
c = 124.974γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
German Federal Ministry for Education and ResearchGermany--

Revision History  (Full details and data files)

  • Version 1.0: 2023-09-06
    Type: Initial release
  • Version 1.1: 2023-10-11
    Changes: Database references