5KCG

Crystal structure of the aromatic prenyltransferase AtaPT (apo state) from Aspergillus terreus A8-4

  • Classification: TRANSFERASE
  • Organism(s): Aspergillus terreus
  • Expression System: Escherichia coli BL21(DE3)
  • Mutation(s): No 

  • Deposited: 2016-06-06 Released: 2016-12-21 
  • Deposition Author(s): Sun, F., Gao, B.
  • Funding Organization(s): Chinese Academy of Sciences, Ministry of Science and Technology of China, National Natural Science Foundation of China

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Molecular insights into the enzyme promiscuity of an aromatic prenyltransferase.

Chen, R.Gao, B.Liu, X.Ruan, F.Zhang, Y.Lou, J.Feng, K.Wunsch, C.Li, S.M.Dai, J.Sun, F.

(2017) Nat Chem Biol 13: 226-234

  • DOI: https://doi.org/10.1038/nchembio.2263
  • Primary Citation of Related Structures:  
    5KCG, 5KCL, 5KCQ, 5KCY, 5KD0, 5KD6, 5KDA

  • PubMed Abstract: 

    Aromatic prenyltransferases (aPTases) transfer prenyl moieties from isoprenoid donors to various aromatic acceptors, some of which have the rare property of extreme enzymatic promiscuity toward both a variety of prenyl donors and a large diversity of acceptors. In this study, we discovered a new aPTase, AtaPT, from Aspergillus terreus that exhibits unprecedented promiscuity toward diverse aromatic acceptors and prenyl donors and also yields products with a range of prenylation patterns. Systematic crystallographic studies revealed various discrete conformations for ligand binding with donor-dependent acceptor specificity and multiple binding sites within a spacious hydrophobic substrate-binding pocket. Further structure-guided mutagenesis of active sites at the substrate-binding pocket is responsible for altering the specificity and promiscuity toward substrates and the diversity of product prenylations. Our study reveals the molecular mechanism underlying the promiscuity of AtaPT and suggests an efficient protein engineering strategy to generate new prenylated derivatives in drug discovery applications.


  • Organizational Affiliation

    State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
aromatic prenyltransferase
A, B
419Aspergillus terreusMutation(s): 0 
UniProt
Find proteins for A0A1B0UHJ4 (Aspergillus terreus)
Explore A0A1B0UHJ4 
Go to UniProtKB:  A0A1B0UHJ4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A1B0UHJ4
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.192 
  • R-Value Observed: 0.194 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 96.2α = 90
b = 135.81β = 90
c = 69.52γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOLREPphasing
Cootmodel building
SCALAdata scaling
MOSFLMdata processing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Chinese Academy of SciencesChinaXDB08030202
Ministry of Science and Technology of ChinaChina2014CB910700
National Natural Science Foundation of ChinaChina81302667

Revision History  (Full details and data files)

  • Version 1.0: 2016-12-21
    Type: Initial release
  • Version 1.1: 2017-07-05
    Changes: Database references
  • Version 1.2: 2023-11-08
    Changes: Data collection, Database references, Refinement description