4ZQP

Crystal Structure of the Catalytic Domain of the Inosine Monophosphate Dehydrogenase from Mycobacterium tuberculosis in the complex with IMP and the inhibitor MAD1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.145 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.5 of the entry. See complete history


Literature

Mycobacterium tuberculosis IMPDH in Complexes with Substrates, Products and Antitubercular Compounds.

Makowska-Grzyska, M.Kim, Y.Gorla, S.K.Wei, Y.Mandapati, K.Zhang, M.Maltseva, N.Modi, G.Boshoff, H.I.Gu, M.Aldrich, C.Cuny, G.D.Hedstrom, L.Joachimiak, A.

(2015) PLoS One 10: e0138976-e0138976

  • DOI: https://doi.org/10.1371/journal.pone.0138976
  • Primary Citation of Related Structures:  
    4ZQM, 4ZQN, 4ZQO, 4ZQP, 4ZQR

  • PubMed Abstract: 

    Tuberculosis (TB) remains a worldwide problem and the need for new drugs is increasingly more urgent with the emergence of multidrug- and extensively-drug resistant TB. Inosine 5'-monophosphate dehydrogenase 2 (IMPDH2) from Mycobacterium tuberculosis (Mtb) is an attractive drug target. The enzyme catalyzes the conversion of inosine 5'-monophosphate into xanthosine 5'-monophosphate with the concomitant reduction of NAD+ to NADH. This reaction controls flux into the guanine nucleotide pool. We report seventeen selective IMPDH inhibitors with antitubercular activity. The crystal structures of a deletion mutant of MtbIMPDH2 in the apo form and in complex with the product XMP and substrate NAD+ are determined. We also report the structures of complexes with IMP and three structurally distinct inhibitors, including two with antitubercular activity. These structures will greatly facilitate the development of MtbIMPDH2-targeted antibiotics.


  • Organizational Affiliation

    Center for Structural Genomics of Infectious Diseases, University of Chicago, Chicago, IL, United States of America.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Inosine-5'-monophosphate dehydrogenase,Inosine-5'-monophosphate dehydrogenase407Mycobacterium tuberculosis H37RvMutation(s): 0 
Gene Names: guaBguaB2Rv3411cMTCY78.17
EC: 1.1.1.205
UniProt
Find proteins for P9WKI7 (Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv))
Explore P9WKI7 
Go to UniProtKB:  P9WKI7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP9WKI7
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 6 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
KP3
Query on KP3

Download Ideal Coordinates CCD File 
C [auth A]5'-O-({1-[(2E)-4-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydro-2-benzofuran-5-yl)-2-methylbut-2-en-1-yl]-1H-1,2,3-triazol-4-yl}methyl)adenosine
C28 H32 N8 O8
KHAINKCXZBTBIV-WDLZNNHFSA-N
IMP
Query on IMP

Download Ideal Coordinates CCD File 
B [auth A]INOSINIC ACID
C10 H13 N4 O8 P
GRSZFWQUAKGDAV-KQYNXXCUSA-N
PO4
Query on PO4

Download Ideal Coordinates CCD File 
E [auth A]PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
GOL
Query on GOL

Download Ideal Coordinates CCD File 
F [auth A]GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
PGO
Query on PGO

Download Ideal Coordinates CCD File 
G [auth A]S-1,2-PROPANEDIOL
C3 H8 O2
DNIAPMSPPWPWGF-VKHMYHEASA-N
K
Query on K

Download Ideal Coordinates CCD File 
D [auth A]POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.189 
  • R-Value Work: 0.143 
  • R-Value Observed: 0.145 
  • Space Group: I 4
  • Diffraction Data: https://doi.org/10.18430/m34zqp
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 88.225α = 90
b = 88.225β = 90
c = 84.63γ = 90
Software Package:
Software NamePurpose
SBC-Collectdata collection
HKL-3000data collection
HKL-3000phasing
HKL-3000data scaling
MOLREPphasing
PHENIXrefinement

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United States--

Revision History  (Full details and data files)

  • Version 1.0: 2015-06-17
    Type: Initial release
  • Version 1.1: 2015-12-16
    Changes: Database references
  • Version 1.2: 2017-02-08
    Changes: Structure summary
  • Version 1.3: 2017-11-22
    Changes: Refinement description
  • Version 1.4: 2022-03-30
    Changes: Author supporting evidence, Database references, Derived calculations
  • Version 1.5: 2024-05-22
    Changes: Data collection