Tyk2 (JH1) in complex with adenosine di-phosphate

Experimental Data Snapshot

  • Resolution: 2.03 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 

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Ligand Structure Quality Assessment 

This is version 1.2 of the entry. See complete history


Lead identification of novel and selective TYK2 inhibitors.

Liang, J.Tsui, V.Van Abbema, A.Bao, L.Barrett, K.Beresini, M.Berezhkovskiy, L.Blair, W.S.Chang, C.Driscoll, J.Eigenbrot, C.Ghilardi, N.Gibbons, P.Halladay, J.Johnson, A.Kohli, P.B.Lai, Y.Liimatta, M.Mantik, P.Menghrajani, K.Murray, J.Sambrone, A.Xiao, Y.Shia, S.Shin, Y.Smith, J.Sohn, S.Stanley, M.Ultsch, M.Zhang, B.Wu, L.C.Magnuson, S.

(2013) Eur J Med Chem 67: 175-187

  • DOI: https://doi.org/10.1016/j.ejmech.2013.03.070
  • Primary Citation of Related Structures:  
    4GFM, 4GFO, 4GIH, 4GMY, 4GVJ

  • PubMed Abstract: 

    A therapeutic rationale is proposed for the treatment of inflammatory diseases, such as psoriasis and inflammatory bowel diseases (IBD), by selective targeting of TYK2. Hit triage, following a high-throughput screen for TYK2 inhibitors, revealed pyridine 1 as a promising starting point for lead identification. Initial expansion of 3 separate regions of the molecule led to eventual identification of cyclopropyl amide 46, a potent lead analog with good kinase selectivity, physicochemical properties, and pharmacokinetic profile. Analysis of the binding modes of the series in TYK2 and JAK2 crystal structures revealed key interactions leading to good TYK2 potency and design options for future optimization of selectivity.

  • Organizational Affiliation

    Department of Discovery Chemistry, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, United States.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Non-receptor tyrosine-protein kinase TYK2302Homo sapiensMutation(s): 5 
Gene Names: TYK2
UniProt & NIH Common Fund Data Resources
Find proteins for P29597 (Homo sapiens)
Explore P29597 
Go to UniProtKB:  P29597
GTEx:  ENSG00000105397 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP29597
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.03 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.188 
  • R-Value Observed: 0.190 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 36.326α = 90
b = 74.051β = 90
c = 105.321γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2013-08-14
    Type: Initial release
  • Version 1.1: 2016-06-08
    Changes: Structure summary
  • Version 1.2: 2023-09-13
    Changes: Data collection, Database references, Derived calculations, Refinement description