7Y4F

bacterial DPP4


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.92 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.169 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Microbial-host-isozyme analyses reveal microbial DPP4 as a potential antidiabetic target.

Wang, K.Zhang, Z.Hang, J.Liu, J.Guo, F.Ding, Y.Li, M.Nie, Q.Lin, J.Zhuo, Y.Sun, L.Luo, X.Zhong, Q.Ye, C.Yun, C.Zhang, Y.Wang, J.Bao, R.Pang, Y.Wang, G.Gonzalez, F.J.Lei, X.Qiao, J.Jiang, C.

(2023) Science 381: eadd5787-eadd5787

  • DOI: https://doi.org/10.1126/science.add5787
  • Primary Citation of Related Structures:  
    7Y4F, 7Y4G, 8HAY

  • PubMed Abstract: 

    A mechanistic understanding of how microbial proteins affect the host could yield deeper insights into gut microbiota-host cross-talk. We developed an enzyme activity-screening platform to investigate how gut microbiota-derived enzymes might influence host physiology. We discovered that dipeptidyl peptidase 4 (DPP4) is expressed by specific bacterial taxa of the microbiota. Microbial DPP4 was able to decrease the active glucagon like peptide-1 (GLP-1) and disrupt glucose metabolism in mice with a leaky gut. Furthermore, the current drugs targeting human DPP4, including sitagliptin, had little effect on microbial DPP4. Using high-throughput screening, we identified daurisoline-d4 (Dau-d4) as a selective microbial DPP4 inhibitor that improves glucose tolerance in diabetic mice.


  • Organizational Affiliation

    Department of Physiology and Pathophysiology, School of Basic Medical Sciences, State Key Laboratory of Female Fertility Promotion, Center for Reproductive Medicine, Peking University, Beijing, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Dipeptidyl peptidase IV
A, B, C, D
736Bacteroides thetaiotaomicronMutation(s): 0 
Gene Names: BT_4193
UniProt
Find proteins for Q8A028 (Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 / VPI-5482 / E50))
Explore Q8A028 
Go to UniProtKB:  Q8A028
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8A028
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.92 Å
  • R-Value Free: 0.193 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.169 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 95.8α = 90
b = 148.857β = 104.02
c = 137.125γ = 90
Software Package:
Software NamePurpose
HKL-2000data scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China82071658

Revision History  (Full details and data files)

  • Version 1.0: 2023-06-14
    Type: Initial release
  • Version 1.1: 2023-07-26
    Changes: Database references
  • Version 1.2: 2023-08-30
    Changes: Data collection, Database references
  • Version 1.3: 2023-11-29
    Changes: Refinement description