8HID

HUMAN ERYTHROCYTE CATALSE COMPLEXED WITH BT-Br


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.227 

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Ligand Structure Quality Assessment 


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Literature

A catalase inhibitor: Targeting the NADPH-binding site for castration-resistant prostate cancer therapy.

Cao, Y.Y.Chen, Y.Y.Wang, M.S.Tong, J.J.Xu, M.Zhao, C.Lin, H.Y.Mei, L.C.Dong, J.Zhang, W.L.Qin, Y.X.Huang, W.Zhang, D.Yang, G.F.

(2023) Redox Biol 63: 102751-102751

  • DOI: https://doi.org/10.1016/j.redox.2023.102751
  • Primary Citation of Related Structures:  
    8HID

  • PubMed Abstract: 

    Catalase (CAT) is an important antioxidant enzyme that breaks down H 2 O 2 into water and oxygen. Inhibitor-modulating CAT activity in cancer cells is emerging as a potential anticancer strategy. However, the discovery of CAT inhibitors towards the heme active center located at the bottom of long and narrow channel has made little progress. Therefore, targeting new binding site is of great importance for the development of efficient CAT inhibitors. Here, the first NADPH-binding site inhibitor of CAT, BT-Br, was designed and synthesized successfully. The cocrystal structure of BT-Br-bound CAT complex was determined with a resolution of 2.2 Å (PDB ID:8HID), which showed clearly that BT-Br bound at the NADPH-binding site. Furthermore, BT-Br was demonstrated to induce ferroptosis in castration-resistant prostate cancer (CRPC) DU145 cells and eventually reduce CRPC tumors in vivo effectively. The work indicates that CAT has potential as a novel target for CRPC therapy based on ferroptosis inducing.


  • Organizational Affiliation

    National Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan, 430079, PR China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Catalase
A, B, C, D
527Homo sapiensMutation(s): 0 
Gene Names: CAT
EC: 1.11.1.6
UniProt & NIH Common Fund Data Resources
Find proteins for P04040 (Homo sapiens)
Explore P04040 
Go to UniProtKB:  P04040
PHAROS:  P04040
GTEx:  ENSG00000121691 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04040
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download Ideal Coordinates CCD File 
F [auth A],
H [auth B],
J [auth C],
L [auth D]
PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
LLR
Query on LLR

Download Ideal Coordinates CCD File 
E [auth A],
G [auth B],
I [auth C],
K [auth D]
(~{S})-azanyl-[2-[[3-bromanyl-4-(diethylamino)phenyl]methyl]hydrazinyl]methanethiol
C12 H21 Br N4 S
RUDWDGHIPWUJQP-LBPRGKRZSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.227 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.466α = 90
b = 140.871β = 90
c = 233.428γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China--

Revision History  (Full details and data files)

  • Version 1.0: 2023-10-04
    Type: Initial release